- 21 Mar, 2014 23 commits
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Arnd Bergmann authored
We normally don't hard-enable Kconfig options just because a board contains a specific piece of hardware. In this case, selecting SMC91X causes a build error, if we don't also enable basic network device driver support. Since the platform has no direct dependency on this driver at link time, we can just remove the 'select' statement. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Daniel Mack <zonque@gmail.com>
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Arnd Bergmann authored
The D-Link DNS-323 machine tries to unconditionally select CONFIG_PHYLIB, but that has other dependencies that might not necessarily be enabled, causing random build errors. To work around this, this patch removes the 'select' statement and instead uses a compile-time check to skip the phy_register_fixup_for_uid() call if PHYLIB is not available in the kernel. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Gregory Clement <gregory.clement@free-electrons.com> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
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Arnd Bergmann authored
The definition for SIGBUS may not be visible without including linux/signal.h, as I found during randconfig testing. Adding an explicit include is certainly the right thing to do. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jason Cooper <jason@lakedaemon.net> Acked-by: Gregory Clement <gregory.clement@free-electrons.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
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Arnd Bergmann authored
The code for h2 and osk implicitly assumes that the tps65010 driver is built-in, in order to perform the initial regulator setup. This is fine for most real uses, but it does get into the way of build testing with 'make randconfig', since we don't want platforms to implicitly select device drivers and subsystems such as I2C. This patch by contrast changes the board files to not call into the tps65010 driver when that is not built-in, allowing us to build all configurations including some that will not work properly on this hardware. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Tony Lindgren <tony@atomide.com>
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Felipe Balbi authored
If CONFIG_OMAP_32K_TIMER isn't enabled, we will try to use enable_dyn_sleep which wasn't defined anywhere. In order to fix the problem, we always define enable_dyn_sleep as 0 when !CONFIG_OMAP_32K_TIMER. Signed-off-by: Felipe Balbi <balbi@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Arnd Bergmann authored
The msm_sdcc MMC driver and the msm_serial_hs uart driver both use the pre-dmaengine interfaces provided by the MSM platform. Since these drivers can be loadable modules, we should export the functions used in the drivers. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org>
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Arnd Bergmann authored
MSM7X00A has an open-coded version of debug_ll_io_init so it can use MT_DEVICE_NONSHARED as required by the platform. However, this fails to build on no-MMU kernels because the debug_ll_addr function is not available. Since the iotable_init function doesn't actually do anyting in this configuration, we can simply get away by enclosing the broken function call in an #ifdef, which seems to be the least ugly workaround. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org>
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Arnd Bergmann authored
After the restructuring of the module.h and init.h headers, we now need to include this explicitly here. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org>
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Arnd Bergmann authored
This symbol is used by the lpc_eth driver, which may be a loadable module. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Roland Stigge <stigge@antcom.de>
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Arnd Bergmann authored
The 'og' machine tries to always initialized the PCI code, but that may be disabled in Kconfig, leading to a build error. This patch changes the code to use the same Kconfig symbol to decide about calling the ks8695_init_pci function at build time that we use to decide about building the ks8695 PCI support. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Greg Ungerer <gerg@uclinux.org>
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Arnd Bergmann authored
Commit 098e30f6 "ARM: ixp4xx: stop broadcasting the custom GPIO API" changed the internal gpio code of ixp4xx to be accessible only from common.c, but unfortunately that broke the Goramo MultiLink code, which uses this API. This tries to restore the previous state without exposing the API globally again. A better solution might be needed. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Krzysztof Halasa <khc@pm.waw.pl> Cc: Imre Kaloz <kaloz@openwrt.org>
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Arnd Bergmann authored
When using CONFIG_IXP4XX_INDIRECT_PCI, we run into a recursive header file dependency between mach/io.h and asm/pci.h, resulting in a build failure: mach-ixp4xx/include/mach/io.h: In function 'is_pci_memory': mach-ixp4xx/include/mach/io.h:53:18: error: 'PCIBIOS_MIN_MEM' undeclared (first use in this function) return (addr >= PCIBIOS_MIN_MEM) && (addr <= 0x4FFFFFFF); ^ mach-ixp4xx/include/mach/io.h:53:18: note: each undeclared identifier is reported only once for each function it appears in We can work around this by referencing the pcibios_min_mem variable directly through an extern declaration, rather than using the macro. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Krzysztof Halasa <khc@pm.waw.pl>
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Arnd Bergmann authored
The omixp board code unconditionally defines a gpio-led device, but for some reason includes the header file for this only if CONFIG_LEDS_CLASS is enabled, causing a build error otherwise. Removing the #ifdef fixes the build error with no downsides whatsoever. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Krzysztof Halasa <khc@pm.waw.pl>
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Arnd Bergmann authored
The hisi SMP code always uses the hi3xxx_set_cpu() function defined in the hotplug.c file, so we cannot build without this when CONFIG_SMP is enabled. This patch slightly restructures the code so we always build the parts of hotplug.c that we need but just leave out the CPU disable logic if CONFIG_HOTPLUG_CPU is turned off. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
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Arnd Bergmann authored
ep93xx_chip_revision is used by the pata_ep93xx driver, which can be a loadable module. Exporting the symbol avoids a link error in this case. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ryan Mallon <rmallon@gmail.com>
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Arnd Bergmann authored
The efm32 platform does not provide a zreladdr-y line its Makefile.boot, so we always have to use CONFIG_AUTO_ZRELADDR in order to successfully build and link a zImage. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Uwe Kleine-König <kernel@pengutronix.de>
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Arnd Bergmann authored
The DAVINCI_DA850_EVM board uses an unusual method to enable the GPIO_PCA953X and KEYBOARD_GPIO_POLLED symbols, which leads to the dependencies on these symbols being ignored. As GPIO_PCA953X actually requires I2C, that can lead to build failures when I2C is disabled. This patch removes the duplicate symbol definitions and instead enables them from the davinci_all_defconfig file. A different question whether we actually want to automatically enable them at all or rather put them into defconfig, but that should be a separate patch. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: davinci-linux-open-source@linux.davincidsp.com
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Arnd Bergmann authored
We cannot call phy_register_fixup_for_uid() if CONFIG_PHYLIB is not built into the kernel, and we should not enforce that to be built into vmlinux either, because one might want to disable the entire network stack. This change uses a compile-time condition on CONFIG_PHYLIB to remove the call in the cases where it cannot work. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: davinci-linux-open-source@linux.davincidsp.com
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Arnd Bergmann authored
It makes no sense for sama5 support to be enabled if we don't also enable USE_OF. Making this automatic in Kconfig avoids a possible randconfig conflict between the old and new clock support code. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
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Arnd Bergmann authored
If CONFIG_PATA_AT91 is disabled, the code in at91_add_device_cf is turned into invalid C statements due to the lack of an expression before the 'else' clause. This moves the first half of the condition inside of the #ifdef, which seems to be what the author intended. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Andrew Victor <linux@maxim.org.za> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
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Arnd Bergmann authored
The pata_at91 driver uses interfaces defined in the sam9_smc platform code. Since the pata driver can be a loadable module, we have to export those symbols in order to link cleanly. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Andrew Victor <linux@maxim.org.za> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
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Arnd Bergmann authored
at91x40 has no support for device tree, but Kconfig allows us to enable CONFIG_OF anyway, causing a link error in the at91 reset controller initialization. The easiest fix is to adapt the existing #ifdef to omit the broken code on at91x40 where it is never called anyway. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Andrew Victor <linux@maxim.org.za> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
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Arnd Bergmann authored
at91x40 is different from all the other at91 machines, and it is impossible to build a kernel that works on both this SoC and any of the others, even though it is possible to build a noMMU kernel for any at91 machine. By turning at91x40 into a separate top-level option, we explicitly forbid enabling invalid configurations that include mutually exclusive machines. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Andrew Victor <linux@maxim.org.za> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
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- 16 Feb, 2014 8 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs fixes from Chris Mason: "We have a small collection of fixes in my for-linus branch. The big thing that stands out is a revert of a new ioctl. Users haven't shipped yet in btrfs-progs, and Dave Sterba found a better way to export the information" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: use right clone root offset for compressed extents btrfs: fix null pointer deference at btrfs_sysfs_add_one+0x105 Btrfs: unset DCACHE_DISCONNECTED when mounting default subvol Btrfs: fix max_inline mount option Btrfs: fix a lockdep warning when cleaning up aborted transaction Revert "btrfs: add ioctl to export size of global metadata reservation"
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linuxLinus Torvalds authored
Pull devicetree fixes from Rob Herring: "Fix booting on PPC boards. Changes to of_match_node matching caused the serial port on some PPC boards to stop working. Reverted the change and reimplement to split matching between new style compatible only matching and fallback to old matching algorithm" * tag 'dt-fixes-for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: search the best compatible match first in __of_match_node() Revert "OF: base: match each node compatible against all given matches first"
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Kevin Hao authored
Currently, of_match_node compares each given match against all node's compatible strings with of_device_is_compatible. To achieve multiple compatible strings per node with ordering from specific to generic, this requires given matches to be ordered from specific to generic. For most of the drivers this is not true and also an alphabetical ordering is more sane there. Therefore, this patch introduces a function to match each of the node's compatible strings against all given compatible matches without type and name first, before checking the next compatible string. This implies that node's compatibles are ordered from specific to generic while given matches can be in any order. If we fail to find such a match entry, then fall-back to the old method in order to keep compatibility. Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Kevin Hao <haokexin@gmail.com> Tested-by: Stephen Chivers <schivers@csc.com> Signed-off-by: Rob Herring <robh@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds authored
Pull SCSI target fixes from Nicholas Bellinger: "Mostly minor fixes this time to v3.14-rc1 related changes. Also included is one fix for a free after use regression in persistent reservations UNREGISTER logic that is CC'ed to >= v3.11.y stable" * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: Target/sbc: Fix protection copy routine IB/srpt: replace strict_strtoul() with kstrtoul() target: Simplify command completion by removing CMD_T_FAILED flag iser-target: Fix leak on failure in isert_conn_create_fastreg_pool iscsi-target: Fix SNACK Type 1 + BegRun=0 handling target: Fix missing length check in spc_emulate_evpd_83() qla2xxx: Remove last vestiges of qla_tgt_cmd.cmd_list target: Fix 32-bit + CONFIG_LBDAF=n link error w/ sector_div target: Fix free-after-use regression in PR unregister
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c fixes from Wolfram Sang: "i2c has a bugfix and documentation improvements for you" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: Documentation: i2c: mention ACPI method for instantiating devices Documentation: i2c: describe devicetree method for instantiating devices i2c: mv64xxx: refactor message start to ensure proper initialization
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Linus Torvalds authored
Merge branches 'irq-urgent-for-linus' and 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq update from Thomas Gleixner: "Fix from the urgent branch: a trivial oneliner adding the missing Kconfig dependency curing build failures which have been discovered by several build robots. The update in the irq-core branch provides a new function in the irq/devres code, which is a prerequisite for driver developers to get rid of boilerplate code all over the place. Not a bugfix, but it has zero impact on the current kernel due to the lack of users. It's simpler to provide the infrastructure to interested parties via your tree than fulfilling the wishlist of driver maintainers on which particular commit or tag this should be based on" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq: Add missing irq_to_desc export for CONFIG_SPARSE_IRQ=n * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq: Add devm_request_any_context_irq()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fixes from Thomas Gleixner: "The following trilogy of patches brings you: - fix for a long standing math overflow issue with HZ < 60 - an onliner fix for a corner case in the dreaded tick broadcast mechanism affecting a certain range of AMD machines which are infested with the infamous automagic C1E power control misfeature - a fix for one of the ARM platforms which allows the kernel to proceed and boot instead of stupidly panicing for no good reason. The patch is slightly larger than necessary, but it's less ugly than the alternative 5 liner" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tick: Clear broadcast pending bit when switching to oneshot clocksource: Kona: Print warning rather than panic time: Fix overflow when HZ is smaller than 60
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- 15 Feb, 2014 9 commits
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Linus Torvalds authored
Merge tag 'trace-fixes-v3.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull twi tracing fixes from Steven Rostedt: "Two urgent fixes in the tracing utility. The first is a fix for the way the ring buffer stores timestamps. After a restructure of the code was done, the ring buffer timestamp logic missed the fact that the first event on a sub buffer is to have a zero delta, as the full timestamp is stored on the sub buffer itself. But because the delta was not cleared to zero, the timestamp for that event will be calculated as the real timestamp + the delta from the last timestamp. This can skew the timestamps of the events and have them say they happened when they didn't really happen. That's bad. The second fix is for modifying the function graph caller site. When the stop machine was removed from updating the function tracing code, it missed updating the function graph call site location. It is still modified as if it is being done via stop machine. But it's not. This can lead to a GPF and kernel crash if the function graph call site happens to lie between cache lines and one CPU is executing it while another CPU is doing the update. It would be a very hard condition to hit, but the result is severe enough to have it fixed ASAP" * tag 'trace-fixes-v3.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ftrace/x86: Use breakpoints for converting function graph caller ring-buffer: Fix first commit on sub-buffer having non-zero delta
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 EFI fixes from Peter Anvin: "A few more EFI-related fixes" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/efi: Check status field to validate BGRT header x86/efi: Fix 32-bit fallout
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC fixes from Kevin Hilman: "A collection of ARM SoC fixes for v3.14-rc1. Mostly a collection of Kconfig, device tree data and compilation fixes along with fix to drivers/phy that fixes a boot regression on some Marvell mvebu platforms" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: dma: mv_xor: Silence a bunch of LPAE-related warnings ARM: ux500: disable msp2 device tree node ARM: zynq: Reserve not DMAable space in front of the kernel ARM: multi_v7_defconfig: Select CONFIG_SOC_DRA7XX ARM: imx6: Initialize low-power mode early again ARM: pxa: fix various compilation problems ARM: pxa: fix compilation problem on AM300EPD board ARM: at91: add Atmel's SAMA5D3 Xplained board spi/atmel: document clock properties mmc: atmel-mci: document clock properties ARM: at91: enable USB host on at91sam9n12ek board ARM: at91/dt: fix sama5d3 ohci hclk clock reference ARM: at91/dt: sam9263: fix compatibility string for the I2C ata: sata_mv: Fix probe failures with optional phys drivers: phy: Add support for optional phys drivers: phy: Make NULL a valid phy reference ARM: fix HAVE_ARM_TWD selection for OMAP and shmobile ARM: moxart: move DMA_OF selection to driver ARM: hisi: fix kconfig warning on HAVE_ARM_TWD
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Wolfram Sang authored
Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Guenter Roeck <linux@roeck-us.net>
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Wolfram Sang authored
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Filipe David Borba Manana authored
For non compressed extents, iterate_extent_inodes() gives us offsets that take into account the data offset from the file extent items, while for compressed extents it doesn't. Therefore we have to adjust them before placing them in a send clone instruction. Not doing this adjustment leads to the receiving end requesting for a wrong a file range to the clone ioctl, which results in different file content from the one in the original send root. Issue reproducible with the following excerpt from the test I made for xfstests: _scratch_mkfs _scratch_mount "-o compress-force=lzo" $XFS_IO_PROG -f -c "truncate 118811" $SCRATCH_MNT/foo $XFS_IO_PROG -c "pwrite -S 0x0d -b 39987 92267 39987" $SCRATCH_MNT/foo $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1 $XFS_IO_PROG -c "pwrite -S 0x3e -b 80000 200000 80000" $SCRATCH_MNT/foo $BTRFS_UTIL_PROG filesystem sync $SCRATCH_MNT $XFS_IO_PROG -c "pwrite -S 0xdc -b 10000 250000 10000" $SCRATCH_MNT/foo $XFS_IO_PROG -c "pwrite -S 0xff -b 10000 300000 10000" $SCRATCH_MNT/foo # will be used for incremental send to be able to issue clone operations $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/clones_snap $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2 $FSSUM_PROG -A -f -w $tmp/1.fssum $SCRATCH_MNT/mysnap1 $FSSUM_PROG -A -f -w $tmp/2.fssum -x $SCRATCH_MNT/mysnap2/mysnap1 \ -x $SCRATCH_MNT/mysnap2/clones_snap $SCRATCH_MNT/mysnap2 $FSSUM_PROG -A -f -w $tmp/clones.fssum $SCRATCH_MNT/clones_snap \ -x $SCRATCH_MNT/clones_snap/mysnap1 -x $SCRATCH_MNT/clones_snap/mysnap2 $BTRFS_UTIL_PROG send $SCRATCH_MNT/mysnap1 -f $tmp/1.snap $BTRFS_UTIL_PROG send $SCRATCH_MNT/clones_snap -f $tmp/clones.snap $BTRFS_UTIL_PROG send -p $SCRATCH_MNT/mysnap1 \ -c $SCRATCH_MNT/clones_snap $SCRATCH_MNT/mysnap2 -f $tmp/2.snap _scratch_unmount _scratch_mkfs _scratch_mount $BTRFS_UTIL_PROG receive $SCRATCH_MNT -f $tmp/1.snap $FSSUM_PROG -r $tmp/1.fssum $SCRATCH_MNT/mysnap1 2>> $seqres.full $BTRFS_UTIL_PROG receive $SCRATCH_MNT -f $tmp/clones.snap $FSSUM_PROG -r $tmp/clones.fssum $SCRATCH_MNT/clones_snap 2>> $seqres.full $BTRFS_UTIL_PROG receive $SCRATCH_MNT -f $tmp/2.snap $FSSUM_PROG -r $tmp/2.fssum $SCRATCH_MNT/mysnap2 2>> $seqres.full Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com> Signed-off-by: Chris Mason <clm@fb.com>
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Anand Jain authored
bdev is null when disk has disappeared and mounted with the degrade option stack trace --------- btrfs_sysfs_add_one+0x105/0x1c0 [btrfs] open_ctree+0x15f3/0x1fe0 [btrfs] btrfs_mount+0x5db/0x790 [btrfs] ? alloc_pages_current+0xa4/0x160 mount_fs+0x34/0x1b0 vfs_kern_mount+0x62/0xf0 do_mount+0x22e/0xa80 ? __get_free_pages+0x9/0x40 ? copy_mount_options+0x31/0x170 SyS_mount+0x7e/0xc0 system_call_fastpath+0x16/0x1b --------- reproducer: ------- mkfs.btrfs -draid1 -mraid1 /dev/sdc /dev/sdd (detach a disk) devmgt detach /dev/sdc [1] mount -o degrade /dev/sdd /btrfs ------- [1] github.com/anajain/devmgt.git Signed-off-by: Anand Jain <Anand.Jain@oracle.com> Tested-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
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Wolfram Sang authored
Because the offload mechanism can fall back to a standard transfer, having two seperate initialization states is unfortunate. Let's just have one state which does things consistently. This fixes a bug where some preparation was missing when the fallback happened. And it makes the code much easier to follow. To implement this, we put the check if offload is possible at the top of the offload setup function. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Cc: stable@vger.kernel.org # v3.12+ Fixes: 930ab3d4 (i2c: mv64xxx: Add I2C Transaction Generator support)
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here is a bunch of USB fixes for 3.14-rc3. Most of these are xhci reverts, fixing a bunch of reported issues with USB 3 host controller issues that loads of people have been hitting (with the exception of kernel developers, all of our machines seem to be working fine, which is why these took so long to get resolved...) There are some other minor fixes and new device ids, as ususal. All have been in linux-next successfully" * tag 'usb-3.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits) usb: option: blacklist ZTE MF667 net interface Revert "usb: xhci: Link TRB must not occur within a USB payload burst" Revert "xhci: Avoid infinite loop when sg urb requires too many trbs" Revert "xhci: Set scatter-gather limit to avoid failed block writes." xhci 1.0: Limit arbitrarily-aligned scatter gather. Modpost: fixed USB alias generation for ranges including 0x9 and 0xA usb: core: Fix potential memory leak adding dyn USBdevice IDs USB: ftdi_sio: add Tagsys RFID Reader IDs usb: qcserial: add Netgear Aircard 340U usb-storage: enable multi-LUN scanning when needed USB: simple: add Dynastream ANT USB-m Stick device support usb-storage: add unusual-devs entry for BlackBerry 9000 usb-storage: restrict bcdDevice range for Super Top in Cypress ATACB usb: phy: move some error messages to debug usb: ftdi_sio: add Mindstorms EV3 console adapter usb: dwc2: fix memory corruption in dwc2 driver usb: dwc2: fix role switch breakage usb: dwc2: bail out early when booting with "nousb" Revert "xhci: replace xhci_read_64() with readq()" Revert "xhci: replace xhci_write_64() with writeq()" ...
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