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* [netdrvr] irq handler minor cleanups in several driversJeff Garzik2008-01-291-3/+3
| | | | | | | | | | | | | | | | | | | | | * use irq_handler_t where appropriate * no need to use 'irq' function arg, its already stored in a data struct * rename irq handler 'irq' argument to 'dummy', where the function has been analyzed and proven not to use its first argument. * remove always-false "dev_id == NULL" test from irq handlers * remove pointless casts from void* * declance: irq argument is not const * add KERN_xxx printk prefix * fix minor whitespace weirdness Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()Joe Perches2007-10-111-7/+7
| | | | | | | This is nicer than the MAC_FMT stuff. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] drivers/net: statistics cleanup #1 -- save memory and shrink codeJeff Garzik2007-10-111-31/+21
| | | | | | | | | | | | | | | | | We now have struct net_device_stats embedded in struct net_device, and the default ->get_stats() hook does the obvious thing for us. Run through drivers/net/* and remove the driver-local storage of statistics, and driver-local ->get_stats() hook where applicable. This was just the low-hanging fruit in drivers/net; plenty more drivers remain to be updated. [ Resolved conflicts with napi_struct changes and fix sunqe build regression... -DaveM ] Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* declance: Remove a dangling spin_unlock_irq() thingyMaciej W. Rozycki2007-05-221-2/+0
| | | | | | | | | The spin_unlock_irq() invocation in lance_start_xmit() has no matching locking request. The call is already protected by netif_tx_lock, so remove the statement. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [ETH]: Make eth_type_trans set skb->dev like the other *_type_transArnaldo Carvalho de Melo2007-04-261-1/+0
| | | | | | | One less thing for drivers writers to worry about. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mips: declance: Driver model for the PMAD-AMaciej W. Rozycki2007-02-081-47/+117
| | | | | | | | | | This is a set of changes that converts the PMAD-A support to the driver model. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] declance: Support the I/O ASIC LANCE w/o TURBOchannelMaciej W. Rozycki2006-12-051-5/+1
| | | | | | | | | | | | | | | The onboard LANCE of I/O ASIC systems is not a TURBOchannel device, at least from the software point of view. Therefore it does not rely on any kernel TURBOchannel bus services and can be supported even if support for TURBOchannel has not been enabled in the configuration. Tested with the onboard LANCE of a DECstation 5000/133. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] declance: Fix PMAX and PMAD supportMaciej W. Rozycki2006-12-051-191/+207
| | | | | | | | | | | | | | | The shared buffer used by the LANCE on the PMAX only supports halfword (16-bit) accesses. And the PMAD has the buffer wired differently. This is a change to fix these issues. Tested with a DECstation 2100 (thanks Flo for making this possible) and a DECstation 5000/133 (both the PMAD and the onboard LANCE). Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* drivers/net: eliminate irq handler impossible checks, needless castsJeff Garzik2006-10-061-2/+2
| | | | | | | | | - Eliminate check for irq handler 'dev_id==NULL' where the condition never occurs. - Eliminate needless casts to/from void* Signed-off-by: Jeff Garzik <jeff@garzik.org>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-051-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
* drivers/net: Trim trailing whitespaceJeff Garzik2006-09-131-4/+4
| | | | Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] Fix freeing of net deviceRalf Baechle2006-07-051-3/+4
| | | | | | | Plus optical sugar. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-301-1/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [NET]: Avoid allocating skb in skb_padHerbert Xu2006-06-231-2/+1
| | | | | | | | | | | | | | | | | | | | First of all it is unnecessary to allocate a new skb in skb_pad since the existing one is not shared. More importantly, our hard_start_xmit interface does not allow a new skb to be allocated since that breaks requeueing. This patch uses pskb_expand_head to expand the existing skb and linearize it if needed. Actually, someone should sift through every instance of skb_pad on a non-linear skb as they do not fit the reasons why this was originally created. Incidentally, this fixes a minor bug when the skb is cloned (tcpdump, TCP, etc.). As it is skb_pad will simply write over a cloned skb. Because of the position of the write it is unlikely to cause problems but still it's best if we don't do it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] declance: Use physical addresses at the interface level.Ralf Baechle2005-10-191-16/+10
| | | | | | | | | | | Use physical addresses at the interface level, letting drivers remap them as appropriate. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> drivers/net/declance.c | 26 ++++++++++---------------- 1 files changed, 10 insertions(+), 16 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] declance: Deal with the bloody KSEG vs CKSEG horror...Ralf Baechle2005-10-191-1/+1
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org> drivers/net/declance.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] declance: Fix mapping of device.Ralf Baechle2005-10-191-2/+2
| | | | | | | | | | | These should really be addresses obtained with ioremap() or some bus-specific backend, but for now... Signed-off-by: Ralf Baechle <ralf@linux-mips.org> drivers/net/declance.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] declance: Convert to irqreturn_t.Ralf Baechle2005-10-191-2/+3
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org> drivers/net/declance.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-171-0/+1320
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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