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2016-01-27include/linux/cleancache.h: Clean up codeChen Gang
Let cleancache_fs_enabled() call cleancache_fs_enabled_mapping() directly. Remove redundant variable ret in cleancache_get_page(). Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2016-01-27cleancache: constify cleancache_ops structureJulia Lawall
The cleancache_ops structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2016-01-27Merge branch 'dev/fst-followup' of ↵Chris Mason
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.5
2016-01-27btrfs: sysfs: check initialization state before updating featuresDavid Sterba
If the mount phase is not finished, we can't update the sysfs files. Reported-by: Chris Mason <clm@fb.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Chris Mason <clm@fb.com>
2016-01-27ASoC: mxs-saif: fix clk_prepare() without matching clk_unprepare()Mans Rullgard
The clk_prepare() call in hw_params() has no matching clk_unprepare(), leaving the clk with an ever-increasing prepare count. Moreover, hw_params() can be called multiple times which would again leave us with a runaway prepare count. Fix this by moving the clk_prepare() call to the startup() function and adding a shutdown() function with a matching clk_unprepare() as these operations are already correctly bracketed by soc-core. Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-27crypto: shash - Fix has_key settingHerbert Xu
The has_key logic is wrong for shash algorithms as they always have a setkey function. So we should instead be testing against shash_no_setkey. Fixes: a5596d633278 ("crypto: hash - Add crypto_ahash_has_setkey") Cc: stable@vger.kernel.org Reported-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Tested-by: Stephan Mueller <smueller@chronox.de>
2016-01-27Merge tag 'iwlwifi-for-kalle-2016-01-26_2' of ↵Kalle Valo
https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes * Fix support for 3168 device + NVM version + firmware file name + device IDs * Fix a compilation warning in dvm calibration code * Fix the TPC (reduced Tx Power) code. This fixes performance issues * Device IDs for 8265
2016-01-27irqchip/atmel-aic: Fix wrong bit operation for IRQ priorityMilo Kim
Atmel AIC has common structure for SMR (Source Mode Register). bit[6:5] Interrupt source type bit[2:0] Priority level Other bits are unused. To update new priority value, bit[2:0] should be cleared first and then new priority level can be written. However, aic_common_set_priority() helper clears source type bits instead of priority bits. This patch fixes wrong mask bit operation. Fixes: b1479ebb7720 "irqchip: atmel-aic: Add atmel AIC/AIC5 drivers" Signed-off-by: Milo Kim <milo.kim@ti.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Ludovic Desroches <ludovic.desroches@atmel.com> Cc: Nicholas Ferre <nicolas.ferre@atmel.com> Cc: stable@vger.kernel.org #v3.17+ Link: http://lkml.kernel.org/r/1452669592-3401-2-git-send-email-milo.kim@ti.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-01-27tick/nohz: Set the correct expiry when switching to nohz/lowres modeWanpeng Li
commit 0ff53d096422 sets the next tick interrupt to the last jiffies update, i.e. in the past, because the forward operation is invoked before the set operation. There is no resulting damage (yet), but we get an extra pointless tick interrupt. Revert the order so we get the next tick interrupt in the future. Fixes: commit 0ff53d096422 "tick: sched: Force tick interrupt and get rid of softirq magic" Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1453893967-3458-1-git-send-email-wanpeng.li@hotmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-01-27ASoC: imx-spdif: Fix crash on suspendLars-Peter Clausen
When registering a ASoC card the driver data of the parent device is set to point to the card. This driver data is used in the snd_soc_suspend()/resume() callbacks. The imx-spdif driver overwrites the driver data with custom data which causes snd_soc_suspend() to crash. Since the custom driver is not used anywhere simply deleting the line which sets the custom driver data fixes the issue. Fixes: 43ac946922b3 ("ASoC: imx-spdif: add snd_soc_pm_ops for spdif machine driver") Tested-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-27ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ typeNicolas Ferre
For phy0 KSZ8081, the type of GPIO IRQ should be "level low" instead of "edge falling". Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Fixes: 38153a017896 ("ARM: at91/dt: sama5d4: add dts for sama5d4 xplained board") Cc: <stable@vger.kernel.org> # 4.1+
2016-01-27ARM: dts: at91: sama5d4 xplained: properly mux phy interruptAlexandre Belloni
No interrupt were received from the phy because PIOE 1 may not be properly muxed. It prevented proper link detection, especially since commit 321beec5047a ("net: phy: Use interrupts when available in NOLINK state") disables polling. Cc: <stable@vger.kernel.org> # 4.4 Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-01-27ARM: dts: at91: sama5d4ek: add phy address and IRQ for macb0Wenyou Yang
On SAMA5D4EK board, the Ethernet doesn't work after resuming from the suspend state. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> [nicolas.ferre@atmel.com: adapt to newer kernel] Fixes: 38153a017896 ("ARM: at91/dt: sama5d4: add dts for sama5d4 xplained board") Cc: <stable@vger.kernel.org> # 4.1+ Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-01-27ARM: dts: at91: sama5d2 xplained: add phy address and IRQ for macb0Nicolas Ferre
After 57a38effa598 (net: phy: micrel: disable broadcast for KSZ8081/KSZ8091) the macb0 interface has difficulties to come back from power saving mode if address not explicitly set up. As the micrel phy on the board is actually configured to show up at address 1 we use this explicitly. Adding the phy node and its real address fixes the issue. The phy IRQ and associated pinmux node is also added. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: stable@vger.kernel.org # 4.4+ // manual merge needed
2016-01-27ARM: dts: at91: at91sam9n12ek: fix panel compatible stringAlexandre Belloni
Properly use qiaodian as the vendor prefix for the panel. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-01-27ARM: dts: at91: sama5d4: fix instance id of DBGUMohamed Jamsheeth Hajanajubudeen
Change instance id of DBGU to 45. Signed-off-by: Mohamed Jamsheeth Hajanajubudeen <mohamedjamsheeth.hajanajubudeen@atmel.com> Fixes: 7c661394c56c ("ARM: at91: dt: add device tree file for SAMA5D4 SoC") Cc: stable@vger.kernel.org # 3.18+ Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-01-27gpio: gpio-altera: Remove gpiochip on probe failure.Phil Reid
On failure to setup the irq altera_gpio_probe would return an error but not go to cleanup. This resulted in kernel fault "Unable to handle kernel paging request at virtual address xxxxxxxx" later on in of_gpiochip_find_and_xlate. Signed-off-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-01-26staging/speakup: Use tty_ldisc_ref() for paste kworkerPeter Hurley
As the function documentation for tty_ldisc_ref_wait() notes, it is only callable from a tty file_operations routine; otherwise there is no guarantee the ref won't be NULL. The key difference with the VT's paste_selection() is that is an ioctl, where __speakup_paste_selection() is completely async kworker, kicked off from interrupt context. Fixes: 28a821c30688 ("Staging: speakup: Update __speakup_paste_selection() tty (ab)usage to match vt") Cc: <stable@vger.kernel.org> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-26n_tty: Fix unsafe reference to "other" ldiscPeter Hurley
Although n_tty_check_unthrottle() has a valid ldisc reference (since the tty core gets the ldisc ref in tty_read() before calling the line discipline read() method), it does not have a valid ldisc reference to the "other" pty of a pty pair. Since getting an ldisc reference for tty->link essentially open-codes tty_wakeup(), just replace with the equivalent tty_wakeup(). Cc: <stable@vger.kernel.org> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-26tty: Fix unsafe ldisc reference via ioctl(TIOCGETD)Peter Hurley
ioctl(TIOCGETD) retrieves the line discipline id directly from the ldisc because the line discipline id (c_line) in termios is untrustworthy; userspace may have set termios via ioctl(TCSETS*) without actually changing the line discipline via ioctl(TIOCSETD). However, directly accessing the current ldisc via tty->ldisc is unsafe; the ldisc ptr dereferenced may be stale if the line discipline is changing via ioctl(TIOCSETD) or hangup. Wait for the line discipline reference (just like read() or write()) to retrieve the "current" line discipline id. Cc: <stable@vger.kernel.org> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-26tty: Retry failed reopen if tty teardown in-progressPeter Hurley
A small window exists where a tty reopen will observe the tty just prior to imminent teardown (tty->count == 0); in this case, open() returns EIO to userspace. Instead, retry the open after checking for signals and yielding; this interruptible retry loop allows teardown to commence and initialize a new tty on retry. Never retry the BSD master pty reopen; there is no guarantee the pty pair teardown is imminent since the slave file descriptors may remain open indefinitely. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Cc: stable <stable@vger.kernel.org> # 4.4 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-26tty: Wait interruptibly for tty lock on reopenPeter Hurley
Allow a signal to interrupt the wait for a tty reopen; eg., if the tty has starting final close and is waiting for the device to drain. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Cc: stable <stable@vger.kernel.org> # 4.4 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-27ALSA: Add missing dependency on CONFIG_SND_TIMERTakashi Iwai
Since the build of PCM timer may be disabled via Kconfig now, each driver that provides a timer interface needs to set CONFIG_SND_TIMER explicitly. Otherwise it may get a build error due to missing symbol. Fixes: 90bbaf66ee7b ('ALSA: timer: add config item to export PCM timer disabling for expert') Reported-by: kbuild test robot <fengguang.wu@intel.com> Cc: <stable@vger.kernel.org> # v4.4+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-26pNFS: Fix missing layoutreturn callsTrond Myklebust
The layoutreturn code currently relies on pnfs_put_lseg() to initiate the RPC call when conditions are right. A problem arises when we want to free the layout segment from inside an inode->i_lock section (e.g. in pnfs_clear_request_commit()), since we cannot sleep. The workaround is to move the actual call to pnfs_send_layoutreturn() to pnfs_put_layout_hdr(), which doesn't have this restriction. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-01-26hisi_sas: fix v1 hw check for slot errorJohn Garry
Completion header bit CMPLT_HDR_RSPNS_XFRD flags whether the response frame is received into host memory, and not whether the response frame has an error. As such, change the decision on whether a slot has an error. Also redundant check on CMPLT_HDR_CMD_CMPLT_MSK is removed. Fixes: 27a3f229 ("hisi_sas: Add cq interrupt handler") Signed-off-by: John Garry <john.garry@huawei.com> Tested-by: Ricardo Salveti <ricardo.salveti@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-01-26hisi_sas: add dependency for HAS_IOMEMJohn Garry
Not every arch has io, so fix build by adding necessary dependency. Signed-off-by: John Garry <john.garry@huawei.com> Suggested-by: Richard Weinberger <richard@nod.at> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-01-26Merge remote-tracking branch 'mkp-scsi/4.5/scsi-fixes' into fixesJames Bottomley
2016-01-26SCSI: fix crashes in sd and sr runtime PMAlan Stern
Runtime suspend during driver probe and removal can cause problems. The driver's runtime_suspend or runtime_resume callbacks may invoked before the driver has finished binding to the device or after the driver has unbound from the device. This problem shows up with the sd and sr drivers, and can cause disk or CD/DVD drives to become unusable as a result. The fix is simple. The drivers store a pointer to the scsi_disk or scsi_cd structure as their private device data when probing is finished, so we simply have to be sure to clear the private data during removal and test it during runtime suspend/resume. This fixes <https://bugs.debian.org/801925>. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Paul Menzel <paul.menzel@giantmonkey.de> Reported-by: Erich Schubert <erich@debian.org> Reported-by: Alexandre Rossi <alexandre.rossi@gmail.com> Tested-by: Paul Menzel <paul.menzel@giantmonkey.de> Tested-by: Erich Schubert <erich@debian.org> CC: <stable@vger.kernel.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2016-01-27powerpc/eeh: Fix PE location codeGavin Shan
In eeh_pe_loc_get(), the PE location code is retrieved from the "ibm,loc-code" property of the device node for the bridge of the PE's primary bus. It's not correct because the property indicates the parent PE's location code. This reads the correct PE location code from "ibm,io-base-loc-code" or "ibm,slot-location-code" property of PE parent bus's device node. Cc: stable@vger.kernel.org # v3.16+ Fixes: 357b2f3dd9b7 ("powerpc/eeh: Dump PE location code") Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Tested-by: Russell Currey <ruscur@russell.cc> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-01-26ARM: 8500/1: fix atags_to_fdt with stack-protector-strongKees Cook
Building with CONFIG_CC_STACKPROTECTOR_STRONG triggers protection code generation under CONFIG_ARM_ATAG_DTB_COMPAT but this is too early for being able to use any of the stack_chk code. Explicitly disable it for only the atags_to_fdt bits. Suggested-by: zhxihu <zhxihu@marvell.com> Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-01-26x86/mm: Fix types used in pgprot cacheability flags translationsJan Beulich
For PAE kernels "unsigned long" is not suitable to hold page protection flags, since _PAGE_NX doesn't fit there. This is the reason for quite a few W+X pages getting reported as insecure during boot (observed namely for the entire initrd range). Fixes: 281d4078be ("x86: Make page cache mode a real type") Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Juergen Gross <JGross@suse.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/56A7635602000078000CAFF1@prv-mh.provo.novell.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-01-26component: fix crash on x86_64 with hda audio driversRussell King
Maarten reports that the addition of releasing match data to the component helper results in a general protection fault on x86_64. This is caused by the devm resources being freed in reverse order to their allocation, which caused a use-after-free of the match array. Switch the match array to be a more conventional kmalloc/kfree() affair, explicitly freeing it along with the parent match data structure. Reported-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Fixes: ce657b1cddf1 ("component: add support for releasing match data") Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-01-26drm/etnaviv: call correct function when trying to vmap a DMABUFLucas Stach
When trying to get the vmap address of an imported buffer, we must call into the appropriate helper function, to allow the exporter to establish the vmap, instead of trying to vmap the buffer on our own. Add an indirection through etnaviv_gem_ops to allow the correct implementation to be called. Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26drm/etnaviv: rename etnaviv_gem_vaddr to etnaviv_gem_vmapLucas Stach
This function follows the semantics of vmap() by returning NULL in case of an error. To make things less confusing rename it to make make both functions more closely related. Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26drm/etnaviv: fix get pages error path in etnaviv_gem_vaddrLucas Stach
In case that etnaviv_gem_get_pages is unable to get the required pages the object mutex needs to be unlocked. Also return NULL in this case instead of propagating the error, as callers of this function might not be prepared to handle a pointer error, but expect this call to follow the semantics of a plain vmap to return NULL in case of an error. Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26drm/etnaviv: fix memory leak in IOMMU init pathLucas Stach
Plug in error handling to free any allocated ressources in the IOMMU init path. Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26drm/etnaviv: add further minor features and varyings countRussell King
Export further minor feature bitmasks and the varyings count from the GPU specifications registers to userspace. Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26drm/etnaviv: add helper for comparing model/revision IDsRussell King
Add and use a helper for comparing the model and revision IDs. Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26drm/etnaviv: add helper to extract bitfieldsRussell King
Add a helper to extract etnaviv bitfields from register values. Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26drm/etnaviv: use defined constants for the chip modelRussell King
Use the defined constants in common.xml.h for the chip model rather than coding these as hex numbers. Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26drm/etnaviv: update common and state_hi xml.h filesRussell King
Update the common and state_hi xml.h header files from the etnaviv repository. Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26drm/etnaviv: ignore VG GPUs with FE2.0Russell King
Ignore GPUs with a 2.0 front end. These have a different register layout for the front end, which provokes imprecise aborts from the register accesses in the 'gpu' debugfs file. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26libnvdimm: fix mode determination for e820 devicesDan Williams
Correctly display "safe" mode when a btt is established on a e820/memmap defined pmem namespace. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2016-01-26base/platform: Fix platform drivers with no probe callbackMartin Wilck
Since b8b2c7d845d5, platform_drv_probe() is called for all platform devices. If drv->probe is NULL, and dev_pm_domain_attach() fails, platform_drv_probe() will return the error code from dev_pm_domain_attach(). This causes real_probe() to enter the "probe_failed" path and set dev->driver to NULL. Before b8b2c7d845d5, real_probe() would assume success if both dev->bus->probe and drv->probe were missing. As a result, a device and driver could be "bound" together just by matching their names; this doesn't work any more after b8b2c7d845d5. This may cause problems later for certain usage of platform_driver_register() and platform_device_register_simple(). I observed a panic while loading the tpm_tis driver with parameter "force=1" (i.e. registering tpm_tis as a platform driver), because tpm_tis_init's assumption that the device returned by platform_device_register_simple() was bound didn't hold any more (tpmm_chip_alloc() dereferences chip->pdev->driver, causing panic). This patch restores the previous (4.3.0 and earlier) behavior of platform_drv_probe() in the case when the associated platform driver has no "probe" function. Fixes: b8b2c7d845d5 ("base/platform: assert that dev_pm_domain callbacks are called unconditionally") Signed-off-by: Martin Wilck <Martin.Wilck@ts.fujitsu.com> Cc: stable <stable@vger.kernel.org> # 4.4 Cc: Martin Fuzzey <mfuzzey@parkeon.com> Acked-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-26arm64: mm: avoid calling apply_to_page_range on empty rangeMika Penttilä
Calling apply_to_page_range with an empty range results in a BUG_ON from the core code. This can be triggered by trying to load the st_drv module with CONFIG_DEBUG_SET_MODULE_RONX enabled: kernel BUG at mm/memory.c:1874! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 3 PID: 1764 Comm: insmod Not tainted 4.5.0-rc1+ #2 Hardware name: ARM Juno development board (r0) (DT) task: ffffffc9763b8000 ti: ffffffc975af8000 task.ti: ffffffc975af8000 PC is at apply_to_page_range+0x2cc/0x2d0 LR is at change_memory_common+0x80/0x108 This patch fixes the issue by making change_memory_common (called by the set_memory_* functions) a NOP when numpages == 0, therefore avoiding the erroneous call to apply_to_page_range and bringing us into line with x86 and s390. Cc: <stable@vger.kernel.org> Reviewed-by: Laura Abbott <labbott@redhat.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Mika Penttilä <mika.penttila@nextfour.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-01-26irqchip/gic-v3-its: Recompute the number of pages on page size changeMarc Zyngier
When the programming of a GITS_BASERn register fails because of an unsupported ITS page size, we retry it with a smaller page size. Unfortunately, we don't recompute the number of allocated ITS pages, indicating the wrong value computed in the original allocation. A convenient fix is to free the pages we allocated, update the page size, and restart the allocation. This will ensure that we always allocate the right amount in the case of a device table, specially if we have to reduce the allocation order to stay within the boundaries of the ITS maximum allocation. Reported-and-tested-by: Ma Jun <majun258@huawei.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Jason Cooper <jason@lakedaemon.net> Link: http://lkml.kernel.org/r/1453818255-1289-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-01-26base: Export platform_msi_domain_[alloc,free]_irqsThomas Petazzoni
The new function platform_msi_domain_{alloc,free}_irqs are meant to be used in platform drivers, which can be built as modules. Therefore, it makes sense to export them to be used from kernel modules. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Jiang Liu <jiang.liu@linux.intel.com> Link: http://lkml.kernel.org/r/1453816347-32720-4-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-01-26KVM doc: Fix KVM_SMI chapter numberAlexey Kardashevskiy
The KVM_SMI capability is following the KVM_S390_SET_IRQ_STATE capability which is "4.95", this changes the number of the KVM_SMI chapter to 4.96. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-01-26Merge tag 'kvm-s390-master-4.5-1' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: s390: Fixes for kvm/master (targeting 4.5) 1. Fallout of some bigger floating point/vector rework in s390 - memory leak -> stable 4.3+ - memory overwrite -> stable 4.4+ 2. enable KVM-VFIO for s390
2016-01-26clocksource: Fix dependencies for archs w/o HAS_IOMEMRichard Weinberger
Not every arch has io memory. So, unbreak the build by fixing the dependencies. Signed-off-by: Richard Weinberger <richard@nod.at> Cc: user-mode-linux-devel@lists.sourceforge.net Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: http://lkml.kernel.org/r/1453760661-1444-21-git-send-email-richard@nod.at Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
generated by cgit (git 2.34.1) at 2025-09-12 21:35:02 +0000