summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2011-06-10btrfs: scrub: errors in tree enumerationArne Jansen
due to the semantics of btrfs_search_slot the path can point to an invalid slot when ret > 0. This condition went unnoticed, which in turn could have led to an incomplete scrubbing. Signed-off-by: Arne Jansen <sensille@gmx.net>
2011-06-10Btrfs: don't map extent buffer if path->skip_locking is setJosef Bacik
Arne's scrub stuff exposed a problem with mapping the extent buffer in reada_for_search. He searches the commit root with multiple threads and with skip_locking set, so we can race and overwrite node->map_token since node isn't locked. So fix this so that we only map the extent buffer if we don't already have a map_token and skip_locking isn't set. Without this patch scrub would panic almost immediately, with the patch it doesn't panic anymore. Thanks, Reported-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Josef Bacik <josef@redhat.com>
2011-06-10ASoC: SAMSUNG: Fix the incorrect referencing of I2SCON registerSangbeom Kim
If DMA active status should be checked, I2SCON register should be referenced. In this patch, Fix the incorrect referencing of I2SCON register. Reported-by : Lakkyung Jung <lakkyung.jung@samsung.com> Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@kernel.org
2011-06-10genirq: Prevent potential NULL dereference in irq_set_irq_wake()Jesper Juhl
In kernel/irq/manage.c::irq_set_irq_wake() we call irq_get_desc_buslock() which may return NULL, but the code dereferences the result unconditionally. irq_set_irq_wake() has lots of callers - I checked a few and I couldn't find anything that guarantees that they won't call it with some input that will cause irq_get_desc_buslock() to return NULL, so I think it's a good thing to test and -EINVAL was the most sane error code in this situation that I could think of. Not all callers test the return value of irq_set_irq_wake(), but those that do take != 0 to mean error as far as I can see, so they should be fine. I guess those that don't test actually should, but that's a different issue. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Link: http://lkml.kernel.org/r/alpine.LNX.2.00.1106092300360.17868@swampdragon.chaosbits.net Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-06-10Merge branch 'davinci-next' of ↵Russell King
git://gitorious.org/linux-davinci/linux-davinci into fixes
2011-06-10Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into fixesRussell King
2011-06-09Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: libata: fix unexpectedly frozen port after ata_eh_reset()
2011-06-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc32, leon: bugfix in LEON SMP interrupt init sparc32, sun4m: bugfix in SMP IPI traphandler sparc: Remove unnecessary semicolons Add support for allocating irqs for bootbus devices Do not skip interrupt sources in sun4d interrupt handler and acknowledge interrupts correctly Restructure sun4d_build_device_irq so that timer interrupts can be allocated sparc: PCIC_PCI needs SPARC32 dependency sparc: Do not select GENERIC_HARDIRQS_NO_DEPRECATED sparc32,leon: add GRPCI2 PCI Host driver sparc32,leon: added LEON-common low-level PCI routines sparc32: added CONFIG_PCIC_PCI Kconfig setting
2011-06-09Merge branch 'rc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 * 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: perf: Use make kernelversion instead of parsing the Makefile kbuild: Hack for depmod not handling X.Y versions kbuild: Move depmod call to a separate script kbuild: Fix <linux/version.h> for empty SUBLEVEL or PATCHLEVEL kbuild: Fix KERNELVERSION for empty SUBLEVEL or PATCHLEVEL kbuild: silence Nothing to be done for 'all' message
2011-06-09sparc32, leon: bugfix in LEON SMP interrupt initDaniel Hellstrom
During converting per-cpu ticker to genirq layer some IRQ initialization code was removed by commit 2cf9530420e446bb61f665d02afeb81070106900 ("sparc32,leon: per-cpu ticker use genirq per-cpu handler"). This patch reintroduces the code at the same place it was removed from. IRQ12 - IRQ14 will crash on LEON SMP without this patch because it will run the SUN4M IRQ trap handler. Reported-by: Jan Andersson <jan@gaisler.com> Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-09sparc32, sun4m: bugfix in SMP IPI traphandlerDaniel Hellstrom
Three new IPIs were introduced by commit ecbc42b70acbc6327adefe9635db93fcf62bf59d ("sparc32, sun4m: Implemented SMP IPIs support for SUN4M machines"), the old handler was already prepared for IPIs but handled only IRQ14 and IRQ13, this patch adds support for the new IPI at IRQ12. The IPI trap handler looks at the mask rather than the pending IRQ/IPI, this bug may have masked the problem above, introduced by the same commit. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-09ARM: extend Code: line by one 16-bit quantity for Thumb instructionsRussell King
Dump out the following 16-bit instruction to the faulting instruction in the Code: line. This allows Thumb-2 instructions to be properly encoded. Tested-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-09ethtool.h: fix typosYegor Yefremov
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-09ep93xx_eth: Update MAINTAINERSH Hartley Sweeten
Lennert stated that he has been short on time lately. Since I'm maintaining the ep93xx core stuff, I'm willing to also take over maintaining the Ethernet driver. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Mika Westerberg <mika.westerberg@iki.fi> Acked-by: Lennert Buytenhek <kernel@wantstofly.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-09ipv4: Fix packet size calculation for raw IPsec packets in __ip_append_dataSteffen Klassert
We assume that transhdrlen is positive on the first fragment which is wrong for raw packets. So we don't add exthdrlen to the packet size for raw packets. This leads to a reallocation on IPsec because we have not enough headroom on the skb to place the IPsec headers. This patch fixes this by adding exthdrlen to the packet size whenever the send queue of the socket is empty. This issue was introduced with git commit 1470ddf7 (inet: Remove explicit write references to sk/inet in ip_append_data) Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-09perf: Use make kernelversion instead of parsing the MakefileMichal Marek
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-06-09kbuild: Hack for depmod not handling X.Y versionsMichal Marek
depmod from module-init-tools < 3.13 and the busybox depmod check if the kernel release starts with <num>.<num>.<num>. To support these versions, we create a symlink with two numbers prepended. Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-06-09kbuild: Move depmod call to a separate scriptMichal Marek
Do not bloat the Makefile with multiline shell statements. No user-visible change intended. Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-06-09kbuild: Fix <linux/version.h> for empty SUBLEVEL or PATCHLEVELMichal Marek
expr treats all numbers as decimals, so prepending a zero is safe. Note that the KERNEL_VERSION() macro still takes three arguments, 3.0 has to be written as KERNEL_VERSION(3,0,0). Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-06-09kbuild: Fix KERNELVERSION for empty SUBLEVEL or PATCHLEVELMichal Marek
Omit the second dot for releases without SUBLEVEL. If PATCHLEVEL is also empty, only display VERSION. Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-06-09gpio/nomadik: fix sleepmode for elder NomadikLinus Walleij
The mach-nomadik machine did not compile properly due to bad ux500-specific functions being called. Introduce new state variables to fix this up. Reported-by: Axel Lin <axel.lin@gmail.com> Cc: Alessandro Rubini <rubini@unipv.it> Cc: Prafulla Wadaskar <prafulla.wadaskar@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-09Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Force page alignment for initrd reserved memory dtc/powerpc: remove obsolete .gitignore entries powerpc/85xx: fix race bug of calling request_irq after enable elbc interrupts powerpc/book3e: Fix CPU feature handling on e5500 in 32-bit mode powerpc/fsl_rio: Fix compile error when CONFIG_FSL_RIO not set
2011-06-09Merge branch 'staging-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6 * 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: staging: iio: max517: Fix iio_info changes Staging: mei: fix debug code Staging: cx23885: fix include of altera.h staging: iio: error case memory leak fix staging: ath6kl: Fix a kernel panic during suspend/resume staging: gma500: get control from firmware framebuffer if conflicts staging: gma500: Skip bogus LVDS VBT mode and check for LVDS before adding backlight staging: usbip: bugfix prevent driver unbind staging: iio: industrialio-trigger: set iio_poll_func private_data staging: rts_pstor: use bitwise operator instead of logical one staging: fix ath6kl build when CFG80211 is not enabled staging: brcm80211: fix for 'multiple definition of wl_msg_level' build err staging: fix olpc_dcon build, needs BACKLIGHT_CLASS_DEVICE Staging: remove STAGING_EXCLUDE_BUILD option Staging: altera: move .h file to proper place
2011-06-09Merge branch 'stable/xen-swiotlb.bugfix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb-2.6 * 'stable/xen-swiotlb.bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb-2.6: swiotlb: Export swioltb_nr_tbl and utilize it as appropiate.
2011-06-09Merge branch 'stable/broadcom.ibft-bugfixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft-2.6 * 'stable/broadcom.ibft-bugfixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft-2.6: iscsi_ibft: iscsi_ibft_find unused variable i
2011-06-09Merge branch 'unicore32' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32 * 'unicore32' of git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32: unicore32: using generic-y format for one line asm-generic files unicore32: change PERCPU to PERCPU_SECTION unicore32: add KBUILD_DEFCONFIG with unicore32_defconfig (old debug_defconfig) unicore32: change zImage physical address, though it's PIC codes unicore32: move rtc-puv3.c to drivers/rtc directory
2011-06-09vsprintf: Update %pI6c to not compress a single 0Joe Perches
RFC 5952 (http://tools.ietf.org/html/rfc5952) mandates that 2 or more consecutive 0's are required before using :: compression. Update ip6_compressed_string to match the RFC and update the http reference as well. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-09exec: delay address limit change until point of no returnMathias Krause
Unconditionally changing the address limit to USER_DS and not restoring it to its old value in the error path is wrong because it prevents us using kernel memory on repeated calls to this function. This, in fact, breaks the fallback of hard coded paths to the init program from being ever successful if the first candidate fails to load. With this patch applied switching to USER_DS is delayed until the point of no return is reached which makes it possible to have a multi-arch rootfs with one arch specific init binary for each of the (hard coded) probed paths. Since the address limit is already set to USER_DS when start_thread() will be invoked, this redundancy can be safely removed. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-09block: make disk_block_events() properly wait for work cancellationTejun Heo
disk_block_events() should guarantee that the event work is not in flight on return and once blocked it shouldn't issue further cancellations. Because there was no synchronization between the first blocker doing cancel_delayed_work_sync() and the following blockers, the following blockers could finish before cancellation was complete, which broke both guarantees - event work could be in flight and cancellation could happen after return. This bug triggered WARN_ON_ONCE() in disk_clear_events() reported in bug#34662. https://bugzilla.kernel.org/show_bug.cgi?id=34662 Fix it by adding an outer mutex which protects both block count manipulation and work cancellation. -v2: Use outer mutex instead of bit waitqueue per Linus. Signed-off-by: Tejun Heo <tj@kernel.org> Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com> Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com> Reported-by: Borislav Petkov <bp@alien8.de> Reported-by: Meelis Roos <mroos@linux.ee> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-06-09block: remove non-syncing __disk_block_events() and fold it into ↵Tejun Heo
disk_block_events() After the previous update to disk_check_events(), nobody is using non-syncing __disk_block_events(). Remove @sync and, as this makes __disk_block_events() virtually identical to disk_block_events(), remove the underscore prefixed version. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-06-09block: don't use non-syncing event blocking in disk_check_events()Tejun Heo
This patch is part of fix for triggering of WARN_ON_ONCE() in disk_clear_events() reported in bug#34662. https://bugzilla.kernel.org/show_bug.cgi?id=34662 disk_clear_events() blocks events, schedules and flushes the event work. It expects the work to have started execution on schedule and finished on return from flush. WARN_ON_ONCE() triggers if the event work hasn't executed as expected. This problem happens because __disk_block_events() fails to guarantee that the event work item is not in flight on return from the function in race-free manner. The problem is two-fold and this patch addresses one of them. When __disk_block_events() is called with @sync == %false, it bumps event block count, calls cancel_delayed_work() and return. This makes it impossible to guarantee that event polling is not in flight on return from syncing __disk_block_events() - if the first blocker was non-syncing, polling could still be in progress and later syncing ones would assume that the first blocker already canceled it. Making __disk_block_events() cancel_sync regardless of block count isn't feasible either as it may race with forced event checking in disk_clear_events(). As disk_check_events() is the only user of non-syncing __disk_block_events(), updating it to directly cancel and schedule event work is the easiest way to solve the issue. Note that there's another bug in __disk_block_events() and this patch doesn't fix the issue completely. Later patch will fix the other bug. Signed-off-by: Tejun Heo <tj@kernel.org> Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com> Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com> Reported-by: Borislav Petkov <bp@alien8.de> Reported-by: Meelis Roos <mroos@linux.ee> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-06-09Bluetooth: l2cap and rfcomm: fix 1 byte infoleak to userspace.Filip Palian
Structures "l2cap_conninfo" and "rfcomm_conninfo" have one padding byte each. This byte in "cinfo" is copied to userspace uninitialized. Signed-off-by: Filip Palian <filip.palian@pjwstk.edu.pl> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-06-09Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into for-davem
2011-06-09staging: iio: max517: Fix iio_info changesRoland Stigge
struct iio_info introduced a bug where the second channel of a MAX518 can't be used. This commit fixes the typo (using max518 instead of the max517 struct). Signed-off-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-09Staging: mei: fix debug codeDan Carpenter
! has higher precedence than !=. H_RDY is 8 and since neither 0 nor 1 are equal to 8 the original condition was always true. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-09Btrfs: unlock the trans lock properlyJosef Bacik
In btrfs_wait_for_commit if we came upon a transaction that had committed we just exited, but that's bad since we are holding the trans_lock. So break instead so that the lock is dropped. Thanks, Reported-by: David Sterba <dsterba@suse.cz> Signed-off-by: Josef Bacik <josef@redhat.com>
2011-06-09Btrfs: don't map extent buffer if path->skip_locking is setJosef Bacik
Arne's scrub stuff exposed a problem with mapping the extent buffer in reada_for_search. He searches the commit root with multiple threads and with skip_locking set, so we can race and overwrite node->map_token since node isn't locked. So fix this so that we only map the extent buffer if we don't already have a map_token and skip_locking isn't set. Without this patch scrub would panic almost immediately, with the patch it doesn't panic anymore. Thanks, Reported-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Josef Bacik <josef@redhat.com>
2011-06-09ASoC: snd_soc_new_{mixer,mux,pga} make sure to use right DAPM contextLars-Peter Clausen
Currently it is possible that snd_soc_new_{mixer,mux,pga} is called with a DAPM context not matching the widgets context. This can lead to a wrong prefix_len calculation, which will result in undefined behaviour. To avoid this always use the DAPM context from the widget itself. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@kernel.org
2011-06-09x86: devicetree: Add missing early_init_dt_setup_initrd_arch stubFlorian Fainelli
This patch fixes the following build failure: drivers/built-in.o: In function `early_init_dt_check_for_initrd': /home/florian/dev/kernel/x86/linux-2.6-x86/drivers/of/fdt.c:571: undefined reference to `early_init_dt_setup_initrd_arch' make: *** [.tmp_vmlinux1] Error 1 which happens as soon as we enable initrd support on a x86 devicetree platform such as Intel CE4100. Signed-off-by: Florian Fainelli <ffainelli@freebox.fr> Acked-by: Grant Likely <grant.likely@secretlab.ca> Cc: Maxime Bizon <mbizon@freebox.fr> Acked-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Cc: stable@kernel.org # 2.6.39 Link: http://lkml.kernel.org/r/201106061015.50039.ffainelli@freebox.fr Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-06-09xen: partially revert "xen: set max_pfn_mapped to the last pfn mapped"Stefano Stabellini
We only need to set max_pfn_mapped to the last pfn mapped on x86_64 to make sure that cleanup_highmap doesn't remove important mappings at _end. We don't need to do this on x86_32 because cleanup_highmap is not called on x86_32. Besides lowering max_pfn_mapped on x86_32 has the unwanted side effect of limiting the amount of memory available for the 1:1 kernel pagetable allocation. This patch reverts the x86_32 part of the original patch. CC: stable@kernel.org Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-06-09iscsi_ibft: iscsi_ibft_find unused variable iConnor Hansen
int i is only needed if CONFIG_ACPI is set so move it within a new ifdef so kernels without ACPI don't allocate space for nothing. Fixes warning too. Signed-off-by: Connor Hansen <cmdkhh@gmail.com> Signed-off-by: Peter Jones <pjones@redhat.com> [v2: Fixed warning when CONFIG_ACPI was defined] Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
2011-06-09tracing: Fix regression in printk_formats fileSteven Rostedt
The fix to fix the printk_formats of modules broke the printk_formats of trace_printks in the kernel. The update of what to show via the seq_file was only updated if the passed in fmt was NULL, which happens only on the first iteration. The result was showing the first format every time instead of iterating through the available formats. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2011-06-09ASoC: fsl: fix initialization of DMA buffersTimur Tabi
The DMA (PCM) driver used by some Freescale PowerPC supports separate DAIs for playback and capture, so DMA buffers should be allocated only for the initialized streams. Instead of checking for the number of active channels, which apparently is not reliable, check to see if the actual stream object exists. Also provide a better name for the DMA interrupt. Signed-off-by: Timur Tabi <timur@freescale.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-06-09ASoC: WM8804 does not support sample rates below 32kHzMark Brown
Reported-by: Kieran O'Leary <Kieran.O'Leary@wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com> Cc: stable@kernel.org
2011-06-09kbuild: silence Nothing to be done for 'all' messagePeter Foley
This patch silences a Makefile.asm-generic message by defining a dummy rule for all. make -f /usr/src/git/scripts/Makefile.asm-generic \ obj=arch/x86/include/generated/asm make[1]: Nothing to be done for `all'. Signed-off-by: Peter Foley <pefoley2@verizon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-06-09ARM: 6955/1: cmpxchg syscall should data abort if page not writePo-Yu Chuang
If the page to cmpxchg is user mode read only (not write), we should simulate a data abort first. Signed-off-by: Po-Yu Chuang <ratbert@faraday-tech.com> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-09ARM: 6954/1: zImage: fix Thumb2 breakageNicolas Pitre
Commit af3e4fd37a "ARM: 6859/1: Add writethrough dcache support for ARM926EJS processor" broke Thumb2 compilation by omitting to maintain the wide encoding for the added branch instructions which made the ARM926EJ-S record smaller than expected, breaking the record walk code. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Cc: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-09ARM: 6953/1: DT: don't try to access physical address zeroNicolas Pitre
If the DT physical address is zero, this is equivalent to no DT. Especially when the actual RAM physical address is not located at zero, the result of phys_to_virt() would point to la-la-land and crash the kernel, which crash is completely silent this early during boot. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-09ARM: 6949/2: mach-u300: fix compilaton warning in IO accessorsLinus Walleij
The IO accessors for U300 were using u32 rather than the nominal void __iomem * type, rectify this by properly defining the virtual base for statically mapped peripherals to be void __iomem *. Requires fixing a field in struct clk as well. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-09Revert "ARM: 6944/1: mm: allow ASID 0 to be allocated to tasks"Russell King
This reverts commit 45b95235b0ac86cef2ad4480b0618b8778847479. Will Deacon reports that: In 52af9c6c ("ARM: 6943/1: mm: use TTBR1 instead of reserved context ID") I updated the ASID rollover code to use only the kernel page tables whilst updating the ASID. Unfortunately, the code to restore the user page tables was part of a later patch which isn't yet in mainline, so this leaves the code quite broken. We're also in the process of eliminating __ARCH_WANT_INTERRUPTS_ON_CTXSW from ARM, so lets revert these until we can properly sort out what we're doing with the context switching. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
generated by cgit (git 2.34.1) at 2025-09-13 09:54:33 +0000