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* pcmcia: cs: make pcmcia_socket_class constantRicardo B. Marliere2024-03-102-2/+2
| | | | | | | | | | | | | Since commit 43a7206b0963 ("driver core: class: make class_register() take a const *"), the driver core allows for struct class to be in read-only memory, so move the pcmcia_socket_class structure to be declared at build time placing it into read-only memory, instead of having to be dynamically allocated at boot time. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
* pcmcia: ds: make pcmcia_bus_type constRicardo B. Marliere2024-02-182-2/+2
| | | | | | | | | | | | Now that the driver core can properly handle constant struct bus_type, move the pcmcia_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
* pcmcia: xxs1500_ss: Convert to platform remove callback returning voidUwe Kleine-König2023-12-151-4/+2
| | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/09a89926787cb9f64caa73c510f04d9f04a5136f.1702051073.git.u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: sa1100: Convert to platform remove callback returning voidUwe Kleine-König2023-12-151-5/+3
| | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/6473afe67fc5c320a8184d0871a8561f7685e265.1702051073.git.u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: pxa2xx: Convert to platform remove callback returning voidUwe Kleine-König2023-12-151-4/+2
| | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/fb750d46ac80b6dfdeaa26053a2cf9d2dc875d4d.1702051073.git.u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: omap_cf: Convert to platform remove callback returning voidUwe Kleine-König2023-12-151-3/+2
| | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/9d96646b75b10f7562d4d18010e885b7fc55e0ab.1702051073.git.u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: electra_cf: Convert to platform remove callback returning voidUwe Kleine-König2023-12-151-4/+2
| | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/7b07c8624ab53ec90554b7a665bef7662bd94295.1702051073.git.u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: db1xxx_ss: Convert to platform remove callback returning voidUwe Kleine-König2023-12-151-4/+2
| | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/3d4c108421f2b1175d3a75ee6854e7772f8a0f82.1702051073.git.u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: bcm63xx: Convert to platform remove callback returning voidUwe Kleine-König2023-12-151-3/+2
| | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/33611a4245b4dabc609a75cf0e0db5e06e9a6fc8.1702051073.git.u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'pcmcia-6.7-rc1' of ↵Linus Torvalds2023-11-084-7/+12
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux Pull PCMCIA updates from Dominik Brodowski: "Cleanups and fixes. Yang Yingliang has fixed a number of resource leaks and Dongliang Mu contributed a spelling fix for the PCMCIA core. Also included is a tiny clenaup to the tcic PCMCIA socket driver provided by lizhe" * tag 'pcmcia-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux: pcmcia: tcic: remove unneeded "&" in call to setup_timer() pcmcia: typo fix pcmcia: ds: fix possible name leak in error path in pcmcia_device_add() pcmcia: ds: fix refcount leak in pcmcia_device_add() pcmcia: cs: fix possible hung task and memory leak pccardd()
| * pcmcia: tcic: remove unneeded "&" in call to setup_timer()lizhe2023-09-031-1/+1
| | | | | | | | | | | | | | | | | | The second parameter is the entry address of the function, and therefore does not require an "&". Signed-off-by: lizhe <sensor1010@163.com> [linux@dominikbrodowski.net: update commit message] Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
| * pcmcia: typo fixDongliang Mu2023-09-031-1/+1
| | | | | | | | | | | | | | themselfves -> themselves Signed-off-by: Dongliang Mu <dzm91@hust.edu.cn> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
| * pcmcia: ds: fix possible name leak in error path in pcmcia_device_add()Yang Yingliang2023-09-031-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically. Therefore, it needs to be freed, which is done by the driver core for us once all references to the device are gone. Therefore, move the dev_set_name() call immediately before the call device_register(), which either succeeds (then the freeing will be done upon subsequent remvoal), or puts the reference in the error call. Also, it is not unusual that the return value of dev_set_name is not checked. Fixes: 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> [linux@dominikbrodowski.net: simplification, commit message modified] Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
| * pcmcia: ds: fix refcount leak in pcmcia_device_add()Yang Yingliang2023-09-031-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | As the comment of device_register() says, it should use put_device() to give up the reference in the error path. Then, insofar resources will be freed in pcmcia_release_dev(), the error path is no longer needed. In particular, this means that the (previously missing) dropping of the reference to &p_dev->function_config->ref is now handled by pcmcia_release_dev(). Fixes: 360b65b95bae ("[PATCH] pcmcia: make config_t independent, add reference counting") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> [linux@dominikbrodowski.net: simplification, commit message rewrite] Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
| * pcmcia: cs: fix possible hung task and memory leak pccardd()Yang Yingliang2023-09-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If device_register() returns error in pccardd(), it leads two issues: 1. The socket_released has never been completed, it will block pcmcia_unregister_socket(), because of waiting for completion of socket_released. 2. The device name allocated by dev_set_name() is leaked. Fix this two issues by calling put_device() when device_register() fails. socket_released can be completed in pcmcia_release_socket(), the name can be freed in kobject_cleanup(). Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
* | pcmcia : make PCMCIA depend on HAS_IOMEMBaoquan He2023-08-041-0/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On s390 systems (aka mainframes), it has classic channel devices for networking and permanent storage that are currently even more common than PCI devices. Hence it could have a fully functional s390 kernel with CONFIG_PCI=n, then the relevant iomem mapping functions [including ioremap(), devm_ioremap(), etc.] are not available. Here let depend PCMCIA on HAS_IOMEM so that it won't be built to cause below compiling error if PCI is unset. ------ ld: drivers/pcmcia/cistpl.o: in function `set_cis_map': cistpl.c:(.text+0x1202): undefined reference to `ioremap' ld: cistpl.c:(.text+0x13b0): undefined reference to `iounmap' ld: cistpl.c:(.text+0x14a6): undefined reference to `iounmap' ld: cistpl.c:(.text+0x1544): undefined reference to `ioremap' ld: drivers/pcmcia/cistpl.o: in function `release_cis_mem': cistpl.c:(.text+0x3f14): undefined reference to `iounmap' ------ Besides, many other Kconfig option, e.g IPWIRELESS, PCMCIA_PCNET, PCMCIA_FMVJ18X, PCMCIA_SMC91C92 which depends on PCMCIA also will cause compiling error if enabled. ------ ERROR: modpost: "iounmap" [drivers/tty/ipwireless/ipwireless.ko] undefined! ERROR: modpost: "ioremap" [drivers/tty/ipwireless/ipwireless.ko] undefined! ERROR: modpost: "iounmap" [drivers/net/ethernet/8390/pcnet_cs.ko] undefined! ERROR: modpost: "ioremap" [drivers/net/ethernet/8390/pcnet_cs.ko] undefined! ERROR: modpost: "iounmap" [drivers/net/ethernet/fujitsu/fmvj18x_cs.ko] undefined! ERROR: modpost: "ioremap" [drivers/net/ethernet/fujitsu/fmvj18x_cs.ko] undefined! ERROR: modpost: "iounmap" [drivers/net/ethernet/smsc/smc91c92_cs.ko] undefined! ERROR: modpost: "ioremap" [drivers/net/ethernet/smsc/smc91c92_cs.ko] undefined! ERROR: modpost: "iounmap" [drivers/net/ethernet/xircom/xirc2ps_cs.ko] undefined! ERROR: modpost: "ioremap" [drivers/net/ethernet/xircom/xirc2ps_cs.ko] undefined! ERROR: modpost: "devm_ioremap" [drivers/net/ethernet/altera/altera_tse.ko] undefined! ERROR: modpost: "iounmap" [drivers/net/arcnet/com90xx.ko] undefined! ------ Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202306211329.ticOJCSv-lkp@intel.com/ Signed-off-by: Baoquan He <bhe@redhat.com> Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Link: https://lore.kernel.org/r/20230707135852.24292-5-bhe@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: rsrc_nonstatic: Fix memory leak in nonstatic_release_resource_db()Armin Wolf2023-06-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When nonstatic_release_resource_db() frees all resources associated with an PCMCIA socket, it forgets to free socket_data too, causing a memory leak observable with kmemleak: unreferenced object 0xc28d1000 (size 64): comm "systemd-udevd", pid 297, jiffies 4294898478 (age 194.484s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 f0 85 0e c3 00 00 00 00 ................ 00 00 00 00 0c 10 8d c2 00 00 00 00 00 00 00 00 ................ backtrace: [<ffda4245>] __kmem_cache_alloc_node+0x2d7/0x4a0 [<7e51f0c8>] kmalloc_trace+0x31/0xa4 [<d52b4ca0>] nonstatic_init+0x24/0x1a4 [pcmcia_rsrc] [<a2f13e08>] pcmcia_register_socket+0x200/0x35c [pcmcia_core] [<a728be1b>] yenta_probe+0x4d8/0xa70 [yenta_socket] [<c48fac39>] pci_device_probe+0x99/0x194 [<84b7c690>] really_probe+0x181/0x45c [<8060fe6e>] __driver_probe_device+0x75/0x1f4 [<b9b76f43>] driver_probe_device+0x28/0xac [<648b766f>] __driver_attach+0xeb/0x1e4 [<6e9659eb>] bus_for_each_dev+0x61/0xb4 [<25a669f3>] driver_attach+0x1e/0x28 [<d8671d6b>] bus_add_driver+0x102/0x20c [<df0d323c>] driver_register+0x5b/0x120 [<942cd8a4>] __pci_register_driver+0x44/0x4c [<e536027e>] __UNIQUE_ID___addressable_cleanup_module188+0x1c/0xfffff000 [iTCO_vendor_support] Fix this by freeing socket_data too. Tested on a Acer Travelmate 4002WLMi by manually binding/unbinding the yenta_cardbus driver (yenta_socket). Signed-off-by: Armin Wolf <W_Armin@gmx.de> Message-ID: <20230512184529.5094-1-W_Armin@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: add HAS_IOPORT dependenciesNiklas Schnelle2023-05-311-3/+2
| | | | | | | | | | | In a future patch HAS_IOPORT=n will result in inb()/outb() and friends not being declared. Add dependencies for those drivers that use them. Co-developed-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> Link: https://lore.kernel.org/r/20230522105049.1467313-27-schnelle@linux.ibm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* driver core: class: remove struct class_interface * from callbacksGreg Kroah-Hartman2023-04-032-8/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The add_dev and remove_dev callbacks in struct class_interface currently pass in a pointer back to the class_interface structure that is calling them, but none of the callback implementations actually use this pointer as it is pointless (the structure is known, the driver passed it in in the first place if it is really needed again.) So clean this up and just remove the pointer from the callbacks and fix up all callback functions. Cc: Jean Delvare <jdelvare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Allen Hubbe <allenbh@gmail.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Alexandre Bounine <alex.bou9@gmail.com> Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: Doug Gilbert <dgilbert@interlog.com> Cc: John Stultz <jstultz@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Wang Weiyang <wangweiyang2@huawei.com> Cc: Yang Yingliang <yangyingliang@huawei.com> Cc: Jakob Koschel <jakobkoschel@gmail.com> Cc: Cai Xinchen <caixinchen1@huawei.com> Acked-by: Rafael J. Wysocki <rafael@kernel.org> Acked-by: Logan Gunthorpe <logang@deltatee.com> Link: https://lore.kernel.org/r/2023040250-pushover-platter-509c@gregkh Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* driver core: class: mark class_release() as taking a const *Greg Kroah-Hartman2023-04-031-1/+1
| | | | | | | | | | | | The struct class callback, class_release(), is only called in 2 places, the pcmcia cardservices code, and in the class driver core code. Both places it is safe to mark the structure as a const *, to allow us to in the future mark all struct class usages as constant and move into read-only memory. Acked-by: Rafael J. Wysocki <rafael@kernel.org> Link: https://lore.kernel.org/r/2023040248-outrage-obsolete-5a9a@gregkh Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'driver-core-6.3-rc1' of ↵Linus Torvalds2023-02-241-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the large set of driver core changes for 6.3-rc1. There's a lot of changes this development cycle, most of the work falls into two different categories: - fw_devlink fixes and updates. This has gone through numerous review cycles and lots of review and testing by lots of different devices. Hopefully all should be good now, and Saravana will be keeping a watch for any potential regression on odd embedded systems. - driver core changes to work to make struct bus_type able to be moved into read-only memory (i.e. const) The recent work with Rust has pointed out a number of areas in the driver core where we are passing around and working with structures that really do not have to be dynamic at all, and they should be able to be read-only making things safer overall. This is the contuation of that work (started last release with kobject changes) in moving struct bus_type to be constant. We didn't quite make it for this release, but the remaining patches will be finished up for the release after this one, but the groundwork has been laid for this effort. Other than that we have in here: - debugfs memory leak fixes in some subsystems - error path cleanups and fixes for some never-able-to-be-hit codepaths. - cacheinfo rework and fixes - Other tiny fixes, full details are in the shortlog All of these have been in linux-next for a while with no reported problems" [ Geert Uytterhoeven points out that that last sentence isn't true, and that there's a pending report that has a fix that is queued up - Linus ] * tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (124 commits) debugfs: drop inline constant formatting for ERR_PTR(-ERROR) OPP: fix error checking in opp_migrate_dentry() debugfs: update comment of debugfs_rename() i3c: fix device.h kernel-doc warnings dma-mapping: no need to pass a bus_type into get_arch_dma_ops() driver core: class: move EXPORT_SYMBOL_GPL() lines to the correct place Revert "driver core: add error handling for devtmpfs_create_node()" Revert "devtmpfs: add debug info to handle()" Revert "devtmpfs: remove return value of devtmpfs_delete_node()" driver core: cpu: don't hand-override the uevent bus_type callback. devtmpfs: remove return value of devtmpfs_delete_node() devtmpfs: add debug info to handle() driver core: add error handling for devtmpfs_create_node() driver core: bus: update my copyright notice driver core: bus: add bus_get_dev_root() function driver core: bus: constify bus_unregister() driver core: bus: constify some internal functions driver core: bus: constify bus_get_kset() driver core: bus: constify bus_register/unregister_notifier() driver core: remove private pointer from struct bus_type ...
| * driver core: make struct bus_type.uevent() take a const *Greg Kroah-Hartman2023-01-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | The uevent() callback in struct bus_type should not be modifying the device that is passed into it, so mark it as a const * and propagate the function signature changes out into all relevant subsystems that use this callback. Acked-by: Rafael J. Wysocki <rafael@kernel.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20230111113018.459199-16-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | pcmcia: remove unused pxa/sa1100 driversArnd Bergmann2023-02-016-565/+2
| | | | | | | | | | | | | | | | A number of boards got removed, so this code is now orphaned. Cc: Dominik Brodowski <linux@dominikbrodowski.net> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | ARM: pxa: remove unused board filesArnd Bergmann2023-01-202-11/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The majority of all pxa board files has not been touched in a long time, and no users have spoken up in favor of keeping them around. This leaves only support for the platforms that were already converted to DT, as well as the gumstix and spitz/akita/borzoi machines that work in qemu and can still be converted to DT later. Cc: Ales Bardorfer <ales@i-tech.si> Cc: Ales Snuparek <snuparek@atlas.cz> Cc: Alex Osborne <ato@meshy.org> Cc: Alex Osborne <bobofdoom@gmail.com> Cc: Dirk Opfer <dirk@opfer-online.de> Cc: Ian Molton <spyro@f2s.com> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Michael Petchkovsky <mkpetch@internode.on.net> Cc: Nick Bane <nick@cecomputing.co.uk> Cc: Paul Parsons <lost.distance@yahoo.com> Cc: Philipp Zabel <philipp.zabel@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Sergey Lapin <slapin@ossfans.org> Cc: Tomas Cech <sleep_walker@suse.cz> Acked-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | ARM: sa1100: remove unused board filesArnd Bergmann2023-01-123-9/+2
|/ | | | | | | | | | | | | | | | | | | The Cerf, H3100, Badge4, Hackkit, LART, NanoEngine, PLEB, Shannon and Simpad machines were all marked as unused as there are no known users left. Remove all of these, along with references to them in defconfig files and drivers. Four machines remain now: Assabet, Collie (Zaurus SL5500), iPAQ H3600 and Jornada 720, each of which had one person still using them, with Collie also being supported in Qemu. Cc: Peter Chubb <peter.chubb@unsw.edu.au> Cc: Stefan Eletzhofer <stefan.eletzhofer@eletztrick.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Lee Jones <lee@kernel.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* treewide: Convert del_timer*() to timer_shutdown*()Steven Rostedt (Google)2022-12-255-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to several bugs caused by timers being re-armed after they are shutdown and just before they are freed, a new state of timers was added called "shutdown". After a timer is set to this state, then it can no longer be re-armed. The following script was run to find all the trivial locations where del_timer() or del_timer_sync() is called in the same function that the object holding the timer is freed. It also ignores any locations where the timer->function is modified between the del_timer*() and the free(), as that is not considered a "trivial" case. This was created by using a coccinelle script and the following commands: $ cat timer.cocci @@ expression ptr, slab; identifier timer, rfield; @@ ( - del_timer(&ptr->timer); + timer_shutdown(&ptr->timer); | - del_timer_sync(&ptr->timer); + timer_shutdown_sync(&ptr->timer); ) ... when strict when != ptr->timer ( kfree_rcu(ptr, rfield); | kmem_cache_free(slab, ptr); | kfree(ptr); ) $ spatch timer.cocci . > /tmp/t.patch $ patch -p1 < /tmp/t.patch Link: https://lore.kernel.org/lkml/20221123201306.823305113@linutronix.de/ Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Acked-by: Pavel Machek <pavel@ucw.cz> [ LED ] Acked-by: Kalle Valo <kvalo@kernel.org> [ wireless ] Acked-by: Paolo Abeni <pabeni@redhat.com> [ networking ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* driver core: make struct class.dev_uevent() take a const *Greg Kroah-Hartman2022-11-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dev_uevent() in struct class should not be modifying the device that is passed into it, so mark it as a const * and propagate the function signature changes out into all relevant subsystems that use this callback. Cc: Jens Axboe <axboe@kernel.dk> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Russ Weight <russell.h.weight@intel.com> Cc: Jean Delvare <jdelvare@suse.com> Cc: Johan Hovold <johan@kernel.org> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Leon Romanovsky <leon@kernel.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Keith Busch <kbusch@kernel.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagi@grimberg.me> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Wolfram Sang <wsa+renesas@sang-engineering.com> Cc: Raed Salem <raeds@nvidia.com> Cc: Chen Zhongjin <chenzhongjin@huawei.com> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Avihai Horon <avihaih@nvidia.com> Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Colin Ian King <colin.i.king@gmail.com> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Jakob Koschel <jakobkoschel@gmail.com> Cc: Antoine Tenart <atenart@kernel.org> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Wang Yufen <wangyufen@huawei.com> Cc: linux-block@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-media@vger.kernel.org Cc: linux-nvme@lists.infradead.org Cc: linux-pm@vger.kernel.org Cc: linux-rdma@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Acked-by: Sebastian Reichel <sre@kernel.org> Acked-by: Rafael J. Wysocki <rafael@kernel.org> Link: https://lore.kernel.org/r/20221123122523.1332370-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: remove AT91RM9200 Compact Flash driverDominik Brodowski2022-09-273-417/+0
| | | | | | | | | | | | | | | | | | | | | | | As noted by Arnd Bergmann, "we used to have three drivers for the same hardware (pcmcia, pata and ide), and only the pcmcia driver remained in the tree after drivers/ide/ was removed and pata_at91 did not get converted to DT". "There is no dts file in tree that actually declares either of them, so chances are that nobody is actually using the CF slot on at91 any more."[1] On this rationale, remove the AT91RM9200 Compact Flash driver, which also assists in reaching "the goal of stopping exporting OF-specific APIs of gpiolib".[2] [1] https://lore.kernel.org/lkml/68c63077-848b-45f5-8aca-ed995391f2b6@www.fastmail.com/ [2] https://lore.kernel.org/lkml/Yy6d7TjqzUwGQnQa@penguin/ Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
* pcmcia: Removed unused variable control.Souptick Joarder (HPE)2022-09-241-3/+1
| | | | | | | | | | | | | Kernel test robot throws below warning -> drivers/pcmcia/omap_cf.c:127:7: warning: variable 'control' set but not used [-Wunused-but-set-variable] Removed unused variable control. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Souptick Joarder (HPE) <jrdr.linux@gmail.com> [linux@dominikbrodowski.net: retain omap_readw() call, as it might be required] Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
* pcmcia: Add __init/__exit annotations to module init/exit funcsXiu Jianfeng2022-09-221-2/+2
| | | | | | | Add missing __init/__exit annotations to module init/exit funcs. Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
* pcmcia: at91_cf: make mc staticruanjinjie2022-09-221-1/+1
| | | | | | | | | | | The symbol is not used outside of the file, so mark it static. Fixes the following warning: ./drivers/pcmcia/at91_cf.c:49:15: warning: symbol 'mc' was not declared. Should it be static? Signed-off-by: ruanjinjie <ruanjinjie@huawei.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
* pcmcia: remove VR41XX PCMCIA driverThomas Bogendoerfer2022-09-223-750/+0
| | | | | | | | | Commit d3164e2f3b0a ("MIPS: Remove VR41xx support") removed support for MIPS VR41xx platform, so remove exclusive drivers for this platform, too. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
* pcmcia: sa1100: Make sa11x0_drv_pcmcia_legacy_remove() return voidUwe Kleine-König2022-09-221-5/+5
| | | | | | | | | | | sa11x0_drv_pcmcia_legacy_remove() returns zero unconditionally. Letting it return void instead makes it easier to see in the caller that there is no error to handle. This is a preparation for making platform remove callbacks return void. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
* Merge tag 'arm-multiplatform-5.19-2' of ↵Linus Torvalds2022-06-0317-1626/+28
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull more ARM multiplatform updates from Arnd Bergmann: "The second part of the multiplatform changes now converts the Intel/Marvell PXA platform along with the rest. The patches went through several rebases before the merge window as bugs were found, so they remained separate. This has to touch a lot of drivers, in particular the touchscreen, pcmcia, sound and clk bits, to detach the driver files from the platform and board specific header files" * tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits) ARM: pxa/mmp: remove traces of plat-pxa ARM: pxa: convert to multiplatform ARM: pxa/sa1100: move I/O space to PCI_IOBASE ARM: pxa: remove support for MTD_XIP ARM: pxa: move mach/*.h to mach-pxa/ ARM: PXA: fix multi-cpu build of xsc3 ARM: pxa: move plat-pxa to drivers/soc/ ARM: mmp: rename pxa_register_device ARM: mmp: remove tavorevb board support ARM: pxa: remove unused mach/bitfield.h ARM: pxa: move clk register definitions to driver ARM: pxa: move smemc register access from clk to platform cpufreq: pxa3: move clk register access to clk driver ARM: pxa: remove get_clk_frequency_khz() ARM: pxa: pcmcia: move smemc configuration back to arch ASoC: pxa: i2s: use normal MMIO accessors ASoC: pxa: ac97: use normal MMIO accessors ASoC: pxa: use pdev resource for FIFO regs Input: wm97xx - get rid of irq_enable method in wm97xx_mach_ops Input: wm97xx - switch to using threaded IRQ ...
| * ARM: pxa/sa1100: move I/O space to PCI_IOBASEArnd Bergmann2022-05-071-8/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PXA and StrongARM1100 traditionally map their I/O space 1:1 into virtual memory, using a per-bus io_offset that matches the base address of the ioremap mapping. In order for PXA to work in a multiplatform config, this needs to change so I/O space starts at PCI_IOBASE (0xfee00000). Since the pcmcia soc_common support is shared with StrongARM1100, both have to change at the same time. The affected machines are: - Anything with a PCMCIA slot now uses pci_remap_iospace, which is made available to PCMCIA configurations as well, rather than just PCI. The first PCMCIA slot now starts at port number 0x10000. - The Zeus and Viper platforms have PC/104-style ISA buses, which have a static mapping for both I/O and memory space at 0xf1000000, which can no longer work. It does not appear to have any in-tree users, so moving it to port number 0 makes them behave like a traditional PC. - SA1100 does support ISA slots in theory, but all machines that originally enabled this appear to have been removed from the tree ages ago, and the I/O space is never mapped anywhere. - The Nanoengine machine has support for PCI slots, but looks like this never included I/O space, the resources only define the location for memory and config space. With this, the definitions of __io() and IO_SPACE_LIMIT can be simplified, as the only remaining cases are the generic PCI_IOBASE and the custom inb()/outb() macros on RiscPC. S3C24xx still has a custom inb()/outb() in this here, but this is already removed in another branch. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * ARM: pxa: pcmcia: move smemc configuration back to archArnd Bergmann2022-05-071-30/+16
| | | | | | | | | | | | | | | | | | | | Rather than poking at the smemc registers directly from the pcmcia/pxa2xx_base driver, move those bits into machine file to have a cleaner interface. Cc: Dominik Brodowski <linux@dominikbrodowski.net> Link: https://lore.kernel.org/lkml/87d0egjzxk.fsf@belgarion.home/ Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * ARM: pxa: move pcmcia board data into mach-pxaArnd Bergmann2022-04-1913-1582/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | The drivers/pcmcia/pxa2xx_*.c are essentially part of the board files, but for historic reasons located in drivers/pcmcia. Move them into the same place as the actual board file to avoid lots of machine header inclusions. Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * ARM: pxa: split up mach/hardware.hArnd Bergmann2022-04-195-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mach/hardware.h is included in lots of places, and it provides three different things on pxa: - the cpu_is_pxa* macros - an indirect inclusion of mach/addr-map.h - the __REG() and io_pv2() helper macros Split it up into separate <linux/soc/pxa/cpu.h> and mach/pxa-regs.h headers, then change all the files that use mach/hardware.h to include the exact set of those three headers that they actually need, allowing for further more targeted cleanup. linux/soc/pxa/cpu.h can remain permanently exported and is now in a global location along with similar headers. pxa-regs.h and addr-map.h are only used in a very small number of drivers now and can be moved to arch/arm/mach-pxa/ directly when those drivers are to pass the necessary data as resources. Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com> Cc: Pavel Machek <pavel@ucw.cz> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guenter Roeck <linux@roeck-us.net> Acked-by: Mark Brown <broonie@kernel.org> Cc: linux-clk@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: linux-input@vger.kernel.org Cc: linux-leds@vger.kernel.org Cc: linux-mmc@vger.kernel.org Cc: linux-mtd@lists.infradead.org Cc: linux-rtc@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-fbdev@vger.kernel.org Cc: linux-watchdog@vger.kernel.org Cc: alsa-devel@alsa-project.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | Merge branch 'pcmcia-next' of ↵Linus Torvalds2022-06-013-6/+7
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux Pull pcmcia updates from Dominik Brodowski: "A few odd cleanups and fixes, including a Kconfig fix to add a required dependency on MIPS" * 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux: pcmcia: Use platform_get_irq() to get the interrupt pcmcia: db1xxx_ss: restrict to MIPS_DB1XXX boards drivers/pcmcia: Fix typo in comment
| * | pcmcia: Use platform_get_irq() to get the interruptMinghao Chi2022-05-281-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is not recommened to use platform_get_resource(pdev, IORESOURCE_IRQ) for requesting IRQ's resources any more, as they can be not ready yet in case of DT-booting. platform_get_irq() instead is a recommended way for getting IRQ even if it was not retrieved earlier. It also makes code simpler because we're getting "int" value right away and no conversion from resource to int is required. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
| * | pcmcia: db1xxx_ss: restrict to MIPS_DB1XXX boardsRandy Dunlap2022-02-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the MIPS_ALCHEMY board selection is MIPS_XXS1500 instead of MIPS_DB1XXX, the PCMCIA driver 'db1xxx_ss' has build errors due to missing DB1XXX symbols. The PCMCIA driver should be restricted to MIPS_DB1XXX instead of MIPS_ALCHEMY to fix this build error. ERROR: modpost: "bcsr_read" [drivers/pcmcia/db1xxx_ss.ko] undefined! ERROR: modpost: "bcsr_mod" [drivers/pcmcia/db1xxx_ss.ko] undefined! Fixes: 42a4f17dc356 ("MIPS: Alchemy: remove SOC_AU1X00 in favor of MIPS_ALCHEMY") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Kees Cook <keescook@chromium.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: linux-mips@vger.kernel.org Acked-by: Manuel Lauss <manuel.lauss@gmail.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
| * | drivers/pcmcia: Fix typo in commenttangmeng2022-02-051-1/+1
| | | | | | | | | | | | | | | | | | | | | Replace unavaibale with unavailable. Signed-off-by: tangmeng <tangmeng@uniontech.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
* | | ARM: omap1: use pci_remap_iospace() for omap_cfArnd Bergmann2022-04-221-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ISA I/O space handling in omap_cf is incompatible with PCI drivers in a multiplatform kernel, and requires a custom mach/io.h. Change the driver to use pci_remap_iospace() like PCI drivers do, so the generic ioport access can work across platforms. To actually use that code, we have to select CONFIG_PCI here. Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | | ARM: omap1: move CF chipselect setup to board fileArnd Bergmann2022-04-212-32/+9
| |/ |/| | | | | | | | | | | | | | | | | There is only one board that uses the omap_cf driver, so moving the chipselect configuration there does not lead to code duplication but avoids the use of mach/tc.h in drivers. Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | ARM: pxa: remove Intel Imote2 and Stargate 2 boardsJonathan Cameron2022-02-283-139/+1
|/ | | | | | | | | | | | | | | | | | | I have no reason to believe these boards have any more users and I haven't tested them for several years. Removing them may simplify other changes to the various PXA boards people still care about. The recent conversion of pxa2xx_spi to GPIO descriptors for example had to update this board despite no one caring or testing. Great boards that got me started in kernel development, RIP! Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Daniel Mack <daniel@zonque.org> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: soc@kernel.org Link: https://lore.kernel.org/r/20220227134431.908998-1-jic23@kernel.org' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* Merge tag 'pci-v5.17-changes' of ↵Linus Torvalds2022-01-161-1/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull pci updates from Bjorn Helgaas: "Enumeration: - Use pci_find_vsec_capability() instead of open-coding it (Andy Shevchenko) - Convert pci_dev_present() stub from macro to static inline to avoid 'unused variable' errors (Hans de Goede) - Convert sysfs slot attributes from default_attrs to default_groups (Greg Kroah-Hartman) - Use DWORD accesses for LTR, L1 SS to avoid BayHub OZ711LV2 erratum (Rajat Jain) - Remove unnecessary initialization of static variables (Longji Guo) Resource management: - Always write Intel I210 ROM BAR on update to work around device defect (Bjorn Helgaas) PCIe native device hotplug: - Fix pciehp lockdep errors on Thunderbolt undock (Hans de Goede) - Fix infinite loop in pciehp IRQ handler on power fault (Lukas Wunner) Power management: - Convert amd64-agp, sis-agp, via-agp from legacy PCI power management to generic power management (Vaibhav Gupta) IOMMU: - Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller so it can work with an IOMMU (Yifeng Li) Error handling: - Add PCI_ERROR_RESPONSE and related definitions for signaling and checking for transaction errors on PCI (Naveen Naidu) - Fabricate PCI_ERROR_RESPONSE data (~0) in config read wrappers, instead of in host controller drivers, when transactions fail on PCI (Naveen Naidu) - Use PCI_POSSIBLE_ERROR() to check for possible failure of config reads (Naveen Naidu) Peer-to-peer DMA: - Add Logan Gunthorpe as P2PDMA maintainer (Bjorn Helgaas) ASPM: - Calculate link L0s and L1 exit latencies when needed instead of caching them (Saheed O. Bolarinwa) - Calculate device L0s and L1 acceptable exit latencies when needed instead of caching them (Saheed O. Bolarinwa) - Remove struct aspm_latency since it's no longer needed (Saheed O. Bolarinwa) APM X-Gene PCIe controller driver: - Fix IB window setup, which was broken by the fact that IB resources are now sorted in address order instead of DT dma-ranges order (Rob Herring) Apple PCIe controller driver: - Enable clock gating to save power (Hector Martin) - Fix REFCLK1 enable/poll logic (Hector Martin) Broadcom STB PCIe controller driver: - Declare bitmap correctly for use by bitmap interfaces (Christophe JAILLET) - Clean up computation of legacy and non-legacy MSI bitmasks (Florian Fainelli) - Update suspend/resume/remove error handling to warn about errors and not fail the operation (Jim Quinlan) - Correct the "pcie" and "msi" interrupt descriptions in DT binding (Jim Quinlan) - Add DT bindings for endpoint voltage regulators (Jim Quinlan) - Split brcm_pcie_setup() into two functions (Jim Quinlan) - Add mechanism for turning on voltage regulators for connected devices (Jim Quinlan) - Turn voltage regulators for connected devices on/off when bus is added or removed (Jim Quinlan) - When suspending, don't turn off voltage regulators for wakeup devices (Jim Quinlan) Freescale i.MX6 PCIe controller driver: - Add i.MX8MM support (Richard Zhu) Freescale Layerscape PCIe controller driver: - Use DWC common ops instead of layerscape-specific link-up functions (Hou Zhiqiang) Intel VMD host bridge driver: - Honor platform ACPI _OSC feature negotiation for Root Ports below VMD (Kai-Heng Feng) - Add support for Raptor Lake SKUs (Karthik L Gopalakrishnan) - Reset everything below VMD before enumerating to work around failure to enumerate NVMe devices when guest OS reboots (Nirmal Patel) Bridge emulation (used by Marvell Aardvark and MVEBU): - Make emulated ROM BAR read-only by default (Pali Rohár) - Make some emulated legacy PCI bits read-only for PCIe devices (Pali Rohár) - Update reserved bits in emulated PCIe Capability (Pali Rohár) - Allow drivers to emulate different PCIe Capability versions (Pali Rohár) - Set emulated Capabilities List bit for all PCIe devices, since they must have at least a PCIe Capability (Pali Rohár) Marvell Aardvark PCIe controller driver: - Add bridge emulation definitions for PCIe DEVCAP2, DEVCTL2, DEVSTA2, LNKCAP2, LNKCTL2, LNKSTA2, SLTCAP2, SLTCTL2, SLTSTA2 (Pali Rohár) - Add aardvark support for DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2 registers (Pali Rohár) - Clear all MSIs at setup to avoid spurious interrupts (Pali Rohár) - Disable bus mastering when unbinding host controller driver (Pali Rohár) - Mask all interrupts when unbinding host controller driver (Pali Rohár) - Fix memory leak in host controller unbind (Pali Rohár) - Assert PERST# when unbinding host controller driver (Pali Rohár) - Disable link training when unbinding host controller driver (Pali Rohár) - Disable common PHY when unbinding host controller driver (Pali Rohár) - Fix resource type checking to check only IORESOURCE_MEM, not IORESOURCE_MEM_64, which is a flavor of IORESOURCE_MEM (Pali Rohár) Marvell MVEBU PCIe controller driver: - Implement pci_remap_iospace() for ARM so mvebu can use devm_pci_remap_iospace() instead of the previous ARM-specific pci_ioremap_io() interface (Pali Rohár) - Use the standard pci_host_probe() instead of the device-specific mvebu_pci_host_probe() (Pali Rohár) - Replace all uses of ARM-specific pci_ioremap_io() with the ARM implementation of the standard pci_remap_iospace() interface and remove pci_ioremap_io() (Pali Rohár) - Skip initializing invalid Root Ports (Pali Rohár) - Check for errors from pci_bridge_emul_init() (Pali Rohár) - Ignore any bridges at non-zero function numbers (Pali Rohár) - Return ~0 data for invalid config read size (Pali Rohár) - Disallow mapping interrupts on emulated bridges (Pali Rohár) - Clear Root Port Memory & I/O Space Enable and Bus Master Enable at initialization (Pali Rohár) - Make type bits in Root Port I/O Base register read-only (Pali Rohár) - Disable Root Port windows when base/limit set to invalid values (Pali Rohár) - Set controller to Root Complex mode (Pali Rohár) - Set Root Port Class Code to PCI Bridge (Pali Rohár) - Update emulated Root Port secondary bus numbers to better reflect the actual topology (Pali Rohár) - Add PCI_BRIDGE_CTL_BUS_RESET support to emulated Root Ports so pci_reset_secondary_bus() can reset connected devices (Pali Rohár) - Add PCI_EXP_DEVCTL Error Reporting Enable support to emulated Root Ports (Pali Rohár) - Add PCI_EXP_RTSTA PME Status bit support to emulated Root Ports (Pali Rohár) - Add DEVCAP2, DEVCTL2 and LNKCTL2 support to emulated Root Ports on Armada XP and newer devices (Pali Rohár) - Export mvebu-mbus.c symbols to allow pci-mvebu.c to be a module (Pali Rohár) - Add support for compiling as a module (Pali Rohár) MediaTek PCIe controller driver: - Assert PERST# for 100ms to allow power and clock to stabilize (qizhong cheng) MediaTek PCIe Gen3 controller driver: - Disable Mediatek DVFSRC voltage request since lack of DVFSRC to respond to the request causes failure to exit L1 PM Substate (Jianjun Wang) MediaTek MT7621 PCIe controller driver: - Declare mt7621_pci_ops static (Sergio Paracuellos) - Give pcibios_root_bridge_prepare() access to host bridge windows (Sergio Paracuellos) - Move MIPS I/O coherency unit setup from driver to pcibios_root_bridge_prepare() (Sergio Paracuellos) - Add missing MODULE_LICENSE() (Sergio Paracuellos) - Allow COMPILE_TEST for all arches (Sergio Paracuellos) Microsoft Hyper-V host bridge driver: - Add hv-internal interfaces to encapsulate arch IRQ dependencies (Sunil Muthuswamy) - Add arm64 Hyper-V vPCI support (Sunil Muthuswamy) Qualcomm PCIe controller driver: - Undo PM setup in qcom_pcie_probe() error handling path (Christophe JAILLET) - Use __be16 type to store return value from cpu_to_be16() (Manivannan Sadhasivam) - Constify static dw_pcie_ep_ops (Rikard Falkeborn) Renesas R-Car PCIe controller driver: - Fix aarch32 abort handler so it doesn't check the wrong bus clock before accessing the host controller (Marek Vasut) TI Keystone PCIe controller driver: - Add register offset for ti,syscon-pcie-id and ti,syscon-pcie-mode DT properties (Kishon Vijay Abraham I) MicroSemi Switchtec management driver: - Add Gen4 automotive device IDs (Kelvin Cao) - Declare state_names[] as static so it's not allocated and initialized for every call (Kelvin Cao) Host controller driver cleanups: - Use of_device_get_match_data(), not of_match_device(), when we only need the device data in altera, artpec6, cadence, designware-plat, dra7xx, keystone, kirin (Fan Fei) - Drop pointless of_device_get_match_data() cast in j721e (Bjorn Helgaas) - Drop redundant struct device * from j721e since struct cdns_pcie already has one (Bjorn Helgaas) - Rename driver structs to *_pcie in intel-gw, iproc, ls-gen4, mediatek-gen3, microchip, mt7621, rcar-gen2, tegra194, uniphier, xgene, xilinx, xilinx-cpm for consistency across drivers (Fan Fei) - Fix invalid address space conversions in hisi, spear13xx (Bjorn Helgaas) Miscellaneous: - Sort Intel Device IDs by value (Andy Shevchenko) - Change Capability offsets to hex to match spec (Baruch Siach) - Correct misspellings (Krzysztof Wilczyński) - Terminate statement with semicolon in pci_endpoint_test.c (Ming Wang)" * tag 'pci-v5.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (151 commits) PCI: mt7621: Allow COMPILE_TEST for all arches PCI: mt7621: Add missing MODULE_LICENSE() PCI: mt7621: Move MIPS setup to pcibios_root_bridge_prepare() PCI: Let pcibios_root_bridge_prepare() access bridge->windows PCI: mt7621: Declare mt7621_pci_ops static PCI: brcmstb: Do not turn off WOL regulators on suspend PCI: brcmstb: Add control of subdevice voltage regulators PCI: brcmstb: Add mechanism to turn on subdev regulators PCI: brcmstb: Split brcm_pcie_setup() into two funcs dt-bindings: PCI: Add bindings for Brcmstb EP voltage regulators dt-bindings: PCI: Correct brcmstb interrupts, interrupt-map. PCI: brcmstb: Fix function return value handling PCI: brcmstb: Do not use __GENMASK PCI: brcmstb: Declare 'used' as bitmap, not unsigned long PCI: hv: Add arm64 Hyper-V vPCI support PCI: hv: Make the code arch neutral by adding arch specific interfaces PCI: pciehp: Use down_read/write_nested(reset_lock) to fix lockdep errors x86/PCI: Remove initialization of static variables to false PCI: Use DWORD accesses for LTR, L1 SS to avoid erratum misc: pci_endpoint_test: Terminate statement with semicolon ...
| * arm: ioremap: Replace pci_ioremap_io() usage by pci_remap_iospace()Pali Rohár2021-12-071-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | Replace all usage of ARM specific pci_ioremap_io() function by standard PCI core API function pci_remap_iospace() in all drivers and ARM mach code. Link: https://lore.kernel.org/r/20211124154116.916-5-pali@kernel.org Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* | drivers/pcmcia: Fix ifdef covering yenta_pm_opsPaul E. McKenney2022-01-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, yenta_dev_suspend_noirq(), yenta_dev_resume_noirq(), and yenta_pm_ops are covered by "#ifdef CONFIG_PM", which results in compiler warnings in kernels built with CONFIG_PM_SLEEP=n and CONFIG_PM=y: drivers/pcmcia/yenta_socket.c:1322:12: warning: ‘yenta_dev_resume_noirq’ defined but not used [-Wunused-function] 1322 | static int yenta_dev_resume_noirq(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/pcmcia/yenta_socket.c:1303:12: warning: ‘yenta_dev_suspend_noirq’ defined but not used [-Wunused-function] 1303 | static int yenta_dev_suspend_noirq(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~~ This affects kernels built without suspend and hibernation. Avoid these warnings by using "#ifdef CONFIG_PM_SLEEP". Fixes: 3daaf2c7aae8 ("pcmcia: Make use of the helper macro SET_NOIRQ_SYSTEM_SLEEP_PM_OPS()") Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'pcmcia-next' of ↵Linus Torvalds2022-01-1111-319/+42
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux Pull pcmcia updates from Dominik Brodowski: "A number of odd cleanups and fixes, including one for a small race in the handling of the pccardd kernel thread" * 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux: pcmcia: fix setting of kthread task states MAINTAINERS: update PCMCIA tree pcmcia: use sysfs_emit{,_at} for sysfs output pcmcia: make pcmcia_release_io() void, as no-one is interested in return value pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in nonstatic_find_mem_region() pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in __nonstatic_find_io_region() pcmcia: comment out unused exca_readw() function pcmcia: Make use of the helper macro SET_NOIRQ_SYSTEM_SLEEP_PM_OPS() pcmcia: clean up dead drivers for CompuLab CM-X255/CM-X270 boards
| * | pcmcia: fix setting of kthread task statesDominik Brodowski2022-01-091-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to set TASK_INTERRUPTIBLE before calling kthread_should_stop(). Otherwise, kthread_stop() might see that the pccardd thread is still in TASK_RUNNING state and fail to wake it up. Additionally, we only need to set the state back to TASK_RUNNING if kthread_should_stop() breaks the loop. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Fixes: d3046ba809ce ("pcmcia: fix a boot time warning in pcmcia cs code") Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 16:20:03 +0100