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* x86/io: Make readq() / writeq() API consistentAndy Shevchenko2017-07-241-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Despite the following commit: 93093d099e5d ("x86: provide readq()/writeq() on 32-bit too, complete") which says: ...Also, map all the APIs to the strongest ordering variant. It's way too easy to mess such details up in drivers and the difference between "memory" and "" constrained asm() constructs is in the noise range. ... we have for now only one user of this API (i.e. writeq_relaxed() in drivers/hwtracing/intel_th/sth.c) on x86 and it does care about "relaxed" part of it. Moreover 32-bit support has been removed from that header, though appeared later in specific headers that emphasizes its non-atomic context. The rest should keep in mind a consistent picture of the __raw_IO() vs. IO() vs. IO_relaxed() API. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Baolin Wang <baolin.wang@spreadtrum.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: intel-gfx@lists.freedesktop.org Cc: linux-i2c@vger.kernel.org Cc: wsa@the-dreams.de Link: http://lkml.kernel.org/r/20170630170934.83028-6-andriy.shevchenko@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* x86/io: Remove xlate_dev_kmem_ptr() duplicationAndy Shevchenko2017-07-242-5/+3
| | | | | | | | | | | | | | | | | | | Generic header defines xlate_dev_kmem_ptr(). Reuse it from generic header and remove in x86 code. Move a description to the generic header as well. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Baolin Wang <baolin.wang@spreadtrum.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: intel-gfx@lists.freedesktop.org Cc: linux-i2c@vger.kernel.org Cc: wsa@the-dreams.de Link: http://lkml.kernel.org/r/20170630170934.83028-5-andriy.shevchenko@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* x86/io: Remove mem*io() duplicationsAndy Shevchenko2017-07-242-45/+24
| | | | | | | | | | | | | | | | | | | Generic header defines memset_io, memcpy_fromio(). and memcpy_toio(). Reuse them from generic header and remove in x86 code. Move the descriptions to the generic header as well. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Baolin Wang <baolin.wang@spreadtrum.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: intel-gfx@lists.freedesktop.org Cc: linux-i2c@vger.kernel.org Cc: wsa@the-dreams.de Link: http://lkml.kernel.org/r/20170630170934.83028-4-andriy.shevchenko@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* x86/io: Include asm-generic/io.h to architectural codeAndy Shevchenko2017-07-241-0/+3
| | | | | | | | | | | | | | | | | | | asm-generic/io.h defines few helpers which would be useful in the drivers, such as writesb() and readsb(). Include it to the asm/io.h in architectural folder. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Wolfram Sang <wsa@the-dreams.de> Cc: Baolin Wang <baolin.wang@spreadtrum.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: intel-gfx@lists.freedesktop.org Cc: linux-i2c@vger.kernel.org Link: http://lkml.kernel.org/r/20170630170934.83028-3-andriy.shevchenko@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* x86/io: Define IO accessors by preprocessorAndy Shevchenko2017-07-241-0/+41
| | | | | | | | | | | | | | | | | | As a preparatory to use generic IO accessor helpers we need to define architecture dependent functions via preprocessor to let world know we have them. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Wolfram Sang <wsa@the-dreams.de> Cc: Baolin Wang <baolin.wang@spreadtrum.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: intel-gfx@lists.freedesktop.org Cc: linux-i2c@vger.kernel.org Link: http://lkml.kernel.org/r/20170630170934.83028-2-andriy.shevchenko@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* x86/asm: Add unwind hint annotations to sync_core()Josh Poimboeuf2017-07-181-0/+3
| | | | | | | | | | | | | | | | | | | This enables objtool to grok the iret in the middle of a C function. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/b057be26193c11d2ed3337b2107bc7adcba42c99.1499786555.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* x86/entry/64: Add unwind hint annotationsJosh Poimboeuf2017-07-183-11/+66
| | | | | | | | | | | | | | | | | | | | | Add unwind hint annotations to entry_64.S. This will enable the ORC unwinder to unwind through any location in the entry code including syscalls, interrupts, and exceptions. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/b9f6d478aadf68ba57c739dcfac34ec0dc021c4c.1499786555.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* objtool, x86: Add facility for asm code to provide unwind hintsJosh Poimboeuf2017-07-186-13/+417
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Some asm (and inline asm) code does special things to the stack which objtool can't understand. (Nor can GCC or GNU assembler, for that matter.) In such cases we need a facility for the code to provide annotations, so the unwinder can unwind through it. This provides such a facility, in the form of unwind hints. They're similar to the GNU assembler .cfi* directives, but they give more information, and are needed in far fewer places, because objtool can fill in the blanks by following branches and adjusting the stack pointer for pushes and pops. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/0f5f3c9104fca559ff4088bece1d14ae3bca52d5.1499786555.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* objtool: Add ORC unwind table generationJosh Poimboeuf2017-07-1814-60/+916
| | | | | | | | | | | | | | | | | | | | | | | | | | Now that objtool knows the states of all registers on the stack for each instruction, it's straightforward to generate debuginfo for an unwinder to use. Instead of generating DWARF, generate a new format called ORC, which is more suitable for an in-kernel unwinder. See Documentation/x86/orc-unwinder.txt for a more detailed description of this new debuginfo format and why it's preferable to DWARF. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/c9b9f01ba6c5ed2bdc9bb0957b78167fdbf9632e.1499786555.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* x86/dumpstack: Fix interrupt and exception stack boundary checksJosh Poimboeuf2017-07-182-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | On x86_64, the double fault exception stack is located immediately after the interrupt stack in memory. This causes confusion in the unwinder when it tries to unwind through an empty interrupt stack, where the stack pointer points to the address bordering the two stacks. The unwinder incorrectly thinks it's running on the double fault stack. Fix this kind of stack border confusion by never considering the beginning address of an exception or interrupt stack to be part of the stack. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Fixes: 5fe599e02e41 ("x86/dumpstack: Add support for unwinding empty IRQ stacks") Link: http://lkml.kernel.org/r/bcc142160a5104de5c354c21c394c93a0173943f.1499786555.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* x86/dumpstack: Fix occasionally missing registersJosh Poimboeuf2017-07-181-5/+7
| | | | | | | | | | | | | | | | | | | | | If two consecutive stack frames have pt_regs, the oops dump code fails to print the second frame's registers. Fix that. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Fixes: 3b3fa11bc700 ("x86/dumpstack: Print any pt_regs found on the stack") Link: http://lkml.kernel.org/r/269c5c00c7d45c699f3dcea42a3a594c6cf7a9a3.1499786555.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* x86/entry/64: Initialize the top of the IRQ stack before switching stacksAndy Lutomirski2017-07-181-1/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OOPS unwinder wants the word at the top of the IRQ stack to point back to the previous stack at all times when the IRQ stack is in use. There's currently a one-instruction window in ENTER_IRQ_STACK during which this isn't the case. Fix it by writing the old RSP to the top of the IRQ stack before jumping. This currently writes the pointer to the stack twice, which is a bit ugly. We could get rid of this by replacing irq_stack_ptr with irq_stack_ptr_minus_eight (better name welcome). OTOH, there may be all kinds of odd microarchitectural considerations in play that affect performance by a few cycles here. Reported-by: Mike Galbraith <efault@gmx.de> Reported-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/aae7e79e49914808440ad5310ace138ced2179ca.1499786555.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* x86/entry/64: Refactor IRQ stacks and make them NMI-safeAndy Lutomirski2017-07-183-26/+64
| | | | | | | | | | | | | | | | | | | | | | | | | This will allow IRQ stacks to nest inside NMIs or similar entries that can happen during IRQ stack setup or teardown. The new macros won't work correctly if they're invoked with IRQs on. Add a check under CONFIG_DEBUG_ENTRY to detect that. Signed-off-by: Andy Lutomirski <luto@kernel.org> [ Use %r10 instead of %r11 in xen_do_hypervisor_callback to make objtool and ORC unwinder's lives a little easier. ] Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/b0b2ff5fb97d2da2e1d7e1f380190c92545c8bb5.1499786555.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds2017-07-185-75/+139
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | Pull sparc fixes from David Miller: - Fix DMA regression in 4.13 merge window, only certain chips can do 64-bit DMA. From Dave Dushar. - Correct cpu cross-call algorithm to correctly detect stalled or stuck remote cpus, from Jane Chu. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Measure receiver forward progress to avoid send mondo timeout SPARC64: Fix sun4v DMA panic
| * sparc64: Measure receiver forward progress to avoid send mondo timeoutJane Chu2017-07-144-70/+132
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A large sun4v SPARC system may have moments of intensive xcall activities, usually caused by unmapping many pages on many CPUs concurrently. This can flood receivers with CPU mondo interrupts for an extended period, causing some unlucky senders to hit send-mondo timeout. This problem gets worse as cpu count increases because sometimes mappings must be invalidated on all CPUs, and sometimes all CPUs may gang up on a single CPU. But a busy system is not a broken system. In the above scenario, as long as the receiver is making forward progress processing mondo interrupts, the sender should continue to retry. This patch implements the receiver's forward progress meter by introducing a per cpu counter 'cpu_mondo_counter[cpu]' where 'cpu' is in the range of 0..NR_CPUS. The receiver increments its counter as soon as it receives a mondo and the sender tracks the receiver's counter. If the receiver has stopped making forward progress when the retry limit is reached, the sender declares send-mondo-timeout and panic; otherwise, the receiver is allowed to keep making forward progress. In addition, it's been observed that PCIe hotplug events generate Correctable Errors that are handled by hypervisor and then OS. Hypervisor 'borrows' a guest cpu strand briefly to provide the service. If the cpu strand is simultaneously the only cpu targeted by a mondo, it may not be available for the mondo in 20msec, causing SUN4V mondo timeout. It appears that 1 second is the agreed wait time between hypervisor and guest OS, this patch makes the adjustment. Orabug: 25476541 Orabug: 26417466 Signed-off-by: Jane Chu <jane.chu@oracle.com> Reviewed-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Anthony Yznaga <anthony.yznaga@oracle.com> Reviewed-by: Rob Gardner <rob.gardner@oracle.com> Reviewed-by: Thomas Tai <thomas.tai@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * SPARC64: Fix sun4v DMA panicTushar Dave2017-07-121-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 64bit DMA only supported on sun4v equipped with ATU IOMMU HW. 'Commit b02c2b0bfd7ae ("sparc: remove arch specific dma_supported implementations")' introduced a code that incorrectly allow dma_supported() to succeed for 64bit dma mask even if system doesn't have ATU IOMMU. This results into panic. Fix it. Reported-by: Meelis Roos <mroos@linux.ee> Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds2017-07-171-10/+53
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fix from Thomas Gleixner: "Fix the fallout from reworking the locking and resource management in request/free_irq()" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq: Keep chip buslock across irq_request/release_resources()
| * | genirq: Keep chip buslock across irq_request/release_resources()Thomas Gleixner2017-07-121-10/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moving the irq_request/release_resources() callbacks out of the spinlocked, irq disabled and bus locked region, unearthed an interesting abuse of the irq_bus_lock/irq_bus_sync_unlock() callbacks. The OMAP GPIO driver does merily power management inside of them. The irq_request_resources() callback of this GPIO irqchip calls a function which reads a GPIO register. That read aborts now because the clock of the GPIO block is not magically enabled via the irq_bus_lock() callback. Move the callbacks under the bus lock again to prevent this. In the free_irq() path this requires to drop the bus_lock before calling synchronize_irq() and reaquiring it before calling the irq_release_resources() callback. The bus lock can't be held because: 1) The data which has been changed between bus_lock/un_lock is cached in the irq chip driver private data and needs to go out to the irq chip via the slow bus (usually SPI or I2C) before calling synchronize_irq(). That's the reason why this bus_lock/unlock magic exists in the first place, as you cannot do SPI/I2C transactions while holding desc->lock with interrupts disabled. 2) synchronize_irq() will actually deadlock, if there is a handler on flight. These chips use threaded handlers for obvious reasons, as they allow to do SPI/I2C communication. When the threaded handler returns then bus_lock needs to be taken in irq_finalize_oneshot() as we need to talk to the actual irq chip once more. After that the threaded handler is marked done, which makes synchronize_irq() return. So if we hold bus_lock accross the synchronize_irq() call, the handler cannot mark itself done because it blocks on the bus lock. That in turn makes synchronize_irq() wait forever on the threaded handler to complete.... Add the missing unlock of desc->request_mutex in the error path of __free_irq() and add a bunch of comments to explain the locking and protection rules. Fixes: 46e48e257360 ("genirq: Move irq resource handling out of spinlocked region") Reported-and-tested-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Reported-and-tested-by: Tony Lindgren <tony@atomide.com> Reported-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Not-longer-ranted-at-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Marc Zyngier <marc.zyngier@arm.com>
* | | Merge branch 'smp-urgent-for-linus' of ↵Linus Torvalds2017-07-171-1/+2
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull SMP fix from Thomas Gleixner: "Replace the bogus BUG_ON in the cpu hotplug code" * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: smp/hotplug: Replace BUG_ON and react useful
| * | | smp/hotplug: Replace BUG_ON and react usefulThomas Gleixner2017-07-111-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The move of the unpark functions to the control thread moved the BUG_ON() there as well. While it made some sense in the idle thread of the upcoming CPU, it's bogus to crash the control thread on the already online CPU, especially as the function has a return value and the callsite is prepared to handle an error return. Replace it with a WARN_ON_ONCE() and return a proper error code. Fixes: 9cd4f1a4e7a8 ("smp/hotplug: Move unparking of percpu threads to the control CPU") Rightfully-ranted-at-by: Linux Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | | | Merge tag 'regmap-fix-w1-merge-window' of ↵Linus Torvalds2017-07-171-2/+2
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap fix from Mark Brown: "Fix build due to w1 header refactoring The regmap support for w1 was added shortly before a reorganization of the w1 headers. While this was noticed before the merge window and efforts made to get it resolved in what was sent that managed to fall through the cracks, this cleans up and updates things so we look for the header in the new location. It didn't cause build failures as the driver that's going to be the first user got held up with other review issues" * tag 'regmap-fix-w1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: regmap-w1: Fix build troubles
| * | | | regmap: regmap-w1: Fix build troublesminimumlaw@rambler.ru2017-07-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes: cc5d0db390b0 ("regmap: Add 1-Wire bus support") Commit de0d6dbdbdb2 ("w1: Add subsystem kernel public interface") Fix place off w1.h header file Cosmetic: Fix company name (local to international) Signed-off-by: Alex A. Mihaylov <minimumlaw@rambler.ru> Signed-off-by: Mark Brown <broonie@kernel.org>
* | | | | Merge tag 'scsi-fixes' of ↵Linus Torvalds2017-07-1712-21/+674
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is actually just a small set of mainly bug fixes for the original merge window code plus a few trivial updates and qedi boot from SAN support feature patch" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: libfc: pass an error pointer to fc_disc_error() scsi: hisi_sas: make several const arrays static scsi: qla2xxx: Off by one in qlt_ctio_to_cmd() scsi: sg: fix SG_DXFER_FROM_DEV transfers scsi: virtio_scsi: always read VPD pages for multiqueue too scsi: qedf: fix spelling mistake: "offlading" -> "offloading" scsi: qedi: fix another spelling mistake: "alloction" -> "allocation" scsi: isci: fix typo in function names scsi: cxlflash: return -EFAULT if copy_from_user() fails scsi: qedi: Add support for Boot from SAN over iSCSI offload
| * | | | | scsi: libfc: pass an error pointer to fc_disc_error()Dan Carpenter2017-07-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is basically to silence a static checker warning. drivers/scsi/libfc/fc_disc.c:326 fc_disc_error() warn: passing a valid pointer to 'PTR_ERR' It doesn't affect runtime because it treats -ENOMEM and a valid pointer the same. But the documentation says we should be passing an error pointer. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | | scsi: hisi_sas: make several const arrays staticColin Ian King2017-07-121-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't populate various tables on the stack but make them static const. Makes the object code smaller by over 280 bytes: Before: text data bss dec hex filename 39887 5080 64 45031 afe7 hisi_sas_v2_hw.o After: text data bss dec hex filename 39318 5368 64 44750 aece hisi_sas_v2_hw.o Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | | scsi: qla2xxx: Off by one in qlt_ctio_to_cmd()Dan Carpenter2017-07-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are "req->num_outstanding_cmds" elements in the req->outstanding_cmds[] array so the > here should be >=. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | | scsi: sg: fix SG_DXFER_FROM_DEV transfersJohannes Thumshirn2017-07-121-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SG_DXFER_FROM_DEV transfers do not necessarily have a dxferp as we set it to NULL for the old sg_io read/write interface, but must have a length bigger than 0. This fixes a regression introduced by commit 28676d869bbb ("scsi: sg: check for valid direction before starting the request") Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Fixes: 28676d869bbb ("scsi: sg: check for valid direction before starting the request") Reported-by: Chris Clayton <chris2553@googlemail.com> Tested-by: Chris Clayton <chris2553@googlemail.com> Cc: Douglas Gilbert <dgilbert@interlog.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Tested-by: Chris Clayton <chris2553@googlemail.com> Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | | scsi: virtio_scsi: always read VPD pages for multiqueue tooPaolo Bonzini2017-07-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Multi-queue virtio-scsi uses a different scsi_host_template struct. Add the .device_alloc field there, too. Fixes: 25d1d50e23275e141e3a3fe06c25a99f4c4bf4e0 Cc: stable@vger.kernel.org Cc: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | | scsi: qedf: fix spelling mistake: "offlading" -> "offloading"Colin Ian King2017-07-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Trivial fix to spelling mistake in QEDF_INFO message and remove duplicated "since" (thanks to Tyrel Datwyler for spotting the latter issue). Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Chad Dupuis <chad.dupuis@cavium.com> Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | | scsi: qedi: fix another spelling mistake: "alloction" -> "allocation"Colin Ian King2017-07-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Trivial fix to spelling mistake in QEDF_ERR message. I should have also included this in a previous fix, but I only just spotted this one. Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | | scsi: isci: fix typo in function namesColin Ian King2017-07-121-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are a couple of typos in function names and spelling of request where the letters u and e are swapped: scu_ssp_reqeust_construct_task_context scu_sata_reqeust_construct_task_context Fix the spelling of request. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | | scsi: cxlflash: return -EFAULT if copy_from_user() failsDan Carpenter2017-07-121-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The copy_from/to_user() functions return the number of bytes remaining to be copied but we had intended to return -EFAULT here. Fixes: bc88ac47d5cb ("scsi: cxlflash: Support AFU debug") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | | scsi: qedi: Add support for Boot from SAN over iSCSI offloadNilesh Javali2017-07-123-0/+646
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for Boot from SAN over iSCSI offload. The iSCSI boot information in the NVRAM is populated under /sys/firmware/iscsi_bootX/ using qed NVM-image reading API and further exported to open-iscsi to perform iSCSI login enabling boot over offload iSCSI interface in a Boot from SAN environment. Signed-off-by: Arun Easi <arun.easi@cavium.com> Signed-off-by: Andrew Vasquez <andrew.vasquez@cavium.com> Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com> Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* | | | | | Blackfin: flat: Use %x to format u32Geert Uytterhoeven2017-07-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several variables had their types changed from unsigned long to u32, but the printk()-style format to print them wasn't updated, leading to: arch/blackfin/kernel/flat.c: In function 'bfin_get_addr_from_rp': arch/blackfin/kernel/flat.c:35:3: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'u32' [-Wformat] arch/blackfin/kernel/flat.c: In function 'bfin_put_addr_at_rp': arch/blackfin/kernel/flat.c:80:3: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'u32' [-Wformat] Fixes: 468138d78510688f ("binfmt_flat: flat_{get,put}_addr_from_rp() should be able to fail") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | h8300: Add missing closing parenthesis in flat_get_addr_from_rp()Geert Uytterhoeven2017-07-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In file included from include/linux/flat.h:13:0, from fs/binfmt_flat.c:36: arch/h8300/include/asm/flat.h: In function 'flat_get_addr_from_rp': arch/h8300/include/asm/flat.h:28:3: error: expected ')' before 'val' val &= 0x00ffffff; ^ arch/h8300/include/asm/flat.h:31:1: error: expected expression before '}' token } ^ In file included from include/linux/flat.h:13:0, from fs/binfmt_flat.c:36: arch/h8300/include/asm/flat.h:26:6: warning: unused variable 'val' [-Wunused-variable] u32 val = get_unaligned((__force u32 *)rp); ^ In file included from include/linux/flat.h:13:0, from fs/binfmt_flat.c:36: arch/h8300/include/asm/flat.h:31:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ Reported-by: kbuild test robot <fengguang.wu@intel.com> Fixes: 468138d78510688f ("binfmt_flat: flat_{get,put}_addr_from_rp() should be able to fail") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | blackfin, m68k: Fix flat_set_persistent() for unsigned long to u32 changesGeert Uytterhoeven2017-07-162-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several variables had their types changed from unsigned long to u32, but the arch-specific implementations of flat_set_persistent() weren't updated, leading to compiler warnings on blackfin and m68k: fs/binfmt_flat.c: In function ‘load_flat_file’: fs/binfmt_flat.c:799: warning: passing argument 2 of ‘flat_set_persistent’ from incompatible pointer type Fixes: 468138d78510688f ("binfmt_flat: flat_{get,put}_addr_from_rp() should be able to fail") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | binfmt_flat: Use %u to format u32Geert Uytterhoeven2017-07-161-1/+1
| |/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several variables had their types changed from unsigned long to u32, but the printk()-style format to print them wasn't updated, leading to: fs/binfmt_flat.c: In function ‘load_flat_file’: fs/binfmt_flat.c:577: warning: format ‘%ld’ expects type ‘long int’, but argument 3 has type ‘u32’ Fixes: 468138d78510688f ("binfmt_flat: flat_{get,put}_addr_from_rp() should be able to fail") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | Linux v4.13-rc1v4.13-rc1Linus Torvalds2017-07-161-2/+2
| | | | |
* | | | | Merge tag 'standardize-docs' of git://git.lwn.net/linuxLinus Torvalds2017-07-1581-4731/+6263
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull documentation format standardization from Jonathan Corbet: "This series converts a number of top-level documents to the RST format without incorporating them into the Sphinx tree. The hope is to bring some uniformity to kernel documentation and, perhaps more importantly, have our existing docs serve as an example of the desired formatting for those that will be added later. Mauro has gone through and fixed up a lot of top-level documentation files to make them conform to the RST format, but without moving or renaming them in any way. This will help when we incorporate the ones we want to keep into the Sphinx doctree, but the real purpose is to bring a bit of uniformity to our documentation and let the top-level docs serve as examples for those writing new ones" * tag 'standardize-docs' of git://git.lwn.net/linux: (84 commits) docs: kprobes.txt: Fix whitespacing tee.txt: standardize document format cgroup-v2.txt: standardize document format dell_rbu.txt: standardize document format zorro.txt: standardize document format xz.txt: standardize document format xillybus.txt: standardize document format vfio.txt: standardize document format vfio-mediated-device.txt: standardize document format unaligned-memory-access.txt: standardize document format this_cpu_ops.txt: standardize document format svga.txt: standardize document format static-keys.txt: standardize document format smsc_ece1099.txt: standardize document format SM501.txt: standardize document format siphash.txt: standardize document format sgi-ioc4.txt: standardize document format SAK.txt: standardize document format rpmsg.txt: standardize document format robust-futexes.txt: standardize document format ...
| * | | | | docs: kprobes.txt: Fix whitespacingMauro Carvalho Chehab2017-07-141-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The notes at the end of this file start with a blank space, instead of a blank line, violating ReST format. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | | tee.txt: standardize document formatMauro Carvalho Chehab2017-07-141-22/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each text file under Documentation follows a different format. Some doesn't even have titles! Change its representation to follow the adopted standard, using ReST markups for it to be parseable by Sphinx: - adjust identation of titles; - mark ascii artwork as a literal block; - adjust references. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | | cgroup-v2.txt: standardize document formatMauro Carvalho Chehab2017-07-141-221/+239
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each text file under Documentation follows a different format. Some doesn't even have titles! Change its representation to follow the adopted standard, using ReST markups for it to be parseable by Sphinx: - Comment the internal index; - Use :Date: and :Author: for authorship; - Mark titles; - Mark literal blocks; - Adjust witespaces; - Mark notes; - Use table notation for the existing tables. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | | dell_rbu.txt: standardize document formatMauro Carvalho Chehab2017-07-141-25/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each text file under Documentation follows a different format. Some doesn't even have titles! Change its representation to follow the adopted standard, using ReST markups for it to be parseable by Sphinx. Currently, the document is completely unformatted. Add titles, do indentation, mark literal blocks. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | | zorro.txt: standardize document formatMauro Carvalho Chehab2017-07-141-29/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each text file under Documentation follows a different format. Some doesn't even have titles! Change its representation to follow the adopted standard, using ReST markups for it to be parseable by Sphinx: - Use right marks for titles; - Use authorship marks; - Mark literals and literal blocks; - Use autonumbered list for references. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | | xz.txt: standardize document formatMauro Carvalho Chehab2017-07-141-97/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each text file under Documentation follows a different format. Some doesn't even have titles! Change its representation to follow the adopted standard, using ReST markups for it to be parseable by Sphinx: - Use marks for titles; - Adjust indentation. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | | xillybus.txt: standardize document formatMauro Carvalho Chehab2017-07-141-15/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each text file under Documentation follows a different format. Some doesn't even have titles! Change its representation to follow the adopted standard, using ReST markups for it to be parseable by Sphinx: - Adjust indentation; - Mark authorship; - Comment internal contents table; - Mark literal blocks; - Don't use all-upercase titles. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | | vfio.txt: standardize document formatMauro Carvalho Chehab2017-07-141-137/+144
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each text file under Documentation follows a different format. Some doesn't even have titles! Change its representation to follow the adopted standard, using ReST markups for it to be parseable by Sphinx: - adjust title marks; - use footnote marks; - mark literal blocks; - adjust identation. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | | vfio-mediated-device.txt: standardize document formatMauro Carvalho Chehab2017-07-141-129/+137
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each text file under Documentation follows a different format. Some doesn't even have titles! In this specific document, the title, copyright and authorship are added as if it were a C file! Change its representation to follow the adopted standard, using ReST markups for it to be parseable by Sphinx: - convert document preambule to the proper format; - mark literal blocks; - adjust identation; - use numbered lists for references. Reviewed by: Kirti Wankhede <kwankhede@nvidia.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | | unaligned-memory-access.txt: standardize document formatMauro Carvalho Chehab2017-07-141-27/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each text file under Documentation follows a different format. Some doesn't even have titles! Change its representation to follow the adopted standard, using ReST markups for it to be parseable by Sphinx: - promote document title one level; - use markups for authorship and put it at the beginning; - mark literal blocks; - adjust identation. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| * | | | | this_cpu_ops.txt: standardize document formatMauro Carvalho Chehab2017-07-141-21/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each text file under Documentation follows a different format. Some doesn't even have titles! Change its representation to follow the adopted standard, using ReST markups for it to be parseable by Sphinx: - promote document title one level; - mark literal blocks; - move authorship to the beginning of the file and use markups. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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