mali_drv.h includes drm_sman.h #160

amegz · 2015-02-11T16:03:53Z

There no drm_sman.h in linux kernel anymore

immibis · 2015-02-13T21:52:08Z

Linus doesn't accept pull requests from GitHub. Consult https://github.com/torvalds/linux/blob/master/Documentation/HOWTO instead.

commit a97c883 upstream. device_add() expects that any memory allocated via devm_* API is only done in the device's probe function. Fix below boot warning: WARNING: CPU: 1 PID: 1 at drivers/base/dd.c:286 driver_probe_device+0x2b4/0x2f4() Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.16.0-10474-g835c90b-dirty torvalds#160 [<c0016364>] (unwind_backtrace) from [<c001251c>] (show_stack+0x20/0x24) [<c001251c>] (show_stack) from [<c04eaefc>] (dump_stack+0x7c/0x98) [<c04eaefc>] (dump_stack) from [<c0023d4c>] (warn_slowpath_common+0x78/0x9c) [<c0023d4c>] (warn_slowpath_common) from [<c0023d9c>] (warn_slowpath_null+0x2c/0x34) [<c0023d9c>] (warn_slowpath_null) from [<c0302c60>] (driver_probe_device+0x2b4/0x2f4) [<c0302c60>] (driver_probe_device) from [<c0302d90>] (__device_attach+0x50/0x54) [<c0302d90>] (__device_attach) from [<c0300e60>] (bus_for_each_drv+0x54/0x9c) [<c0300e60>] (bus_for_each_drv) from [<c0302958>] (device_attach+0x84/0x90) [<c0302958>] (device_attach) from [<c0301f10>] (bus_probe_device+0x94/0xb8) [<c0301f10>] (bus_probe_device) from [<c03000c0>] (device_add+0x434/0x4fc) [<c03000c0>] (device_add) from [<c0342dd4>] (spi_add_device+0x98/0x164) [<c0342dd4>] (spi_add_device) from [<c03444a4>] (spi_register_master+0x598/0x768) [<c03444a4>] (spi_register_master) from [<c03446b4>] (devm_spi_register_master+0x40/0x80) [<c03446b4>] (devm_spi_register_master) from [<c0346214>] (dw_spi_add_host+0x1a8/0x258) [<c0346214>] (dw_spi_add_host) from [<c0346920>] (dw_spi_mmio_probe+0x1d4/0x294) [<c0346920>] (dw_spi_mmio_probe) from [<c0304560>] (platform_drv_probe+0x3c/0x6c) [<c0304560>] (platform_drv_probe) from [<c0302a98>] (driver_probe_device+0xec/0x2f4) [<c0302a98>] (driver_probe_device) from [<c0302d3c>] (__driver_attach+0x9c/0xa0) [<c0302d3c>] (__driver_attach) from [<c0300f0c>] (bus_for_each_dev+0x64/0x98) [<c0300f0c>] (bus_for_each_dev) from [<c0302518>] (driver_attach+0x2c/0x30) [<c0302518>] (driver_attach) from [<c0302134>] (bus_add_driver+0xdc/0x1f4) [<c0302134>] (bus_add_driver) from [<c03035c8>] (driver_register+0x88/0x104) [<c03035c8>] (driver_register) from [<c030445c>] (__platform_driver_register+0x58/0x6c) [<c030445c>] (__platform_driver_register) from [<c0700f00>] (dw_spi_mmio_driver_init+0x18/0x20) [<c0700f00>] (dw_spi_mmio_driver_init) from [<c0008914>] (do_one_initcall+0x90/0x1d4) [<c0008914>] (do_one_initcall) from [<c06d7d90>] (kernel_init_freeable+0x178/0x248) [<c06d7d90>] (kernel_init_freeable) from [<c04e687c>] (kernel_init+0x18/0xfc) [<c04e687c>] (kernel_init) from [<c000ecd8>] (ret_from_fork+0x14/0x20) Reported-by: Thor Thayer <tthayer@opensource.altera.com> Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 163fe30 upstream. When the driver sets this rate a power of zero value is set causing data flow stoppage until another rate is tried. Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 40c8790 upstream. When the driver sets this rate a power of zero value is set causing data flow stoppage until another rate is tried. Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 1f51d58 upstream. byRFType is not set prior to registration of mac80211 causing unpredictable operation after channel scans. With byRFType unset all channels are enabled this causes tx power to be set to values not present its eeprom. Move setting of this variable to vt6655_probe. byRFType must have a mask set. byRevId not used by driver and is removed. Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit a104a45 upstream. The commit 9cade1a (dma: dw: split driver to library part and platform code) introduced a separate platform driver but missed to add a MODULE_ALIAS("platform:dw_dmac"); to that module. The patch adds this to get driver loaded automatically if platform device is registered. Reported-by: "Blin, Jerome" <jerome.blin@intel.com> Fixes: 9cade1a (dma: dw: split driver to library part and platform code) Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit ab7c7bb upstream. __dm_destroy() must take the suspend_lock so that its presuspend and postsuspend calls do not race with an internal suspend. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

… REQ_WRITE_SAME commit e5db298 upstream. Since it's possible for the discard and write same queue limits to change while the upper level command is being sliced and diced, fix up both of them (a) to reject IO if the special command is unsupported at the start of the function and (b) read the limits once and let the commands error out on their own if the status happens to change. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 5f027a3 upstream. It was always intended that a read to an unprovisioned block will return zeroes regardless of whether the pool is in read-only or read-write mode. thin_bio_map() was inconsistent with its handling of such reads when the pool is in read-only mode, it now properly zero-fills the bios it returns in response to unprovisioned block reads. Eliminate thin_bio_map()'s special read-only mode handling of -ENODATA and just allow the IO to be deferred to the worker which will result in pool->process_bio() handling the IO (which already properly zero-fills reads to unprovisioned blocks). Reported-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit b735fed upstream. In the function snapshot_resume we perform exception store handover. If there is another active snapshot target, the exception store is moved from this target to the target that is being resumed. The problem is that if there is some pending exception, it will point to an incorrect exception store after that handover, causing a crash due to dm-snap-persistent.c:get_exception()'s BUG_ON. This bug can be triggered by repeatedly changing snapshot permissions with "lvchange -p r" and "lvchange -p rw" while there are writes on the associated origin device. To fix this bug, we must suspend the origin device when doing the exception store handover to make sure that there are no pending exceptions: - introduce _origin_hash that keeps track of dm_origin structures. - introduce functions __lookup_dm_origin, __insert_dm_origin and __remove_dm_origin that manipulate the origin hash. - modify snapshot_resume so that it calls dm_internal_suspend_fast() and dm_internal_resume_fast() on the origin device. NOTE to stable@ people: When backporting to kernels 3.12-3.18, use dm_internal_suspend and dm_internal_resume instead of dm_internal_suspend_fast and dm_internal_resume_fast. When backporting to kernels older than 3.12, you need to pick functions dm_internal_suspend and dm_internal_resume from the commit fd2ed4d. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 09ee96b upstream. The "dm snapshot: suspend origin when doing exception handover" commit fixed a exception store handover bug associated with pending exceptions to the "snapshot-origin" target. However, a similar problem exists in snapshot merging. When snapshot merging is in progress, we use the target "snapshot-merge" instead of "snapshot-origin". Consequently, during exception store handover, we must find the snapshot-merge target and suspend its associated mapped_device. To avoid lockdep warnings, the target must be suspended and resumed without holding _origins_lock. Introduce a dm_hold() function that grabs a reference on a mapped_device, but unlike dm_get(), it doesn't crash if the device has the DMF_FREEING flag set, it returns an error in this case. In snapshot_resume() we grab the reference to the origin device using dm_hold() while holding _origins_lock (_origins_lock guarantees that the device won't disappear). Then we release _origins_lock, suspend the device and grab _origins_lock again. NOTE to stable@ people: When backporting to kernels 3.18 and older, use dm_internal_suspend and dm_internal_resume instead of dm_internal_suspend_fast and dm_internal_resume_fast. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 12cb89e upstream. num-cs is 32 bit property, don't read just upper 16 bits. Fixes: 4a8573a (spi: qup: Remove chip select function) Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 854d2f2 upstream. The logic of DMA completion is broken now since test_and_clear_bit() never returns the other bit is set. It means condition are always false and we have spi_finalize_current_transfer() called per each DMA completion which is wrong. The patch fixes logic by clearing BUSY bit first and then check for the other one. Fixes: 30c8eb5 (spi: dw-mid: split rx and tx callbacks when DMA) Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 391949b upstream. With spidev the mesg->complete callback points to spidev_complete. Calling this unblocks spidev_sync and so spidev_sync_write finishes. As the struct spi_message just read is a local variable in spidev_sync_write and recording the trace event accesses this message the recording is better done first. The same can happen for spidev_sync_read. This fixes an oops observed on a 3.14-rt system with spidev activity after echo 1 > /sys/kernel/debug/tracing/events/spi/enable . Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 98cf21c upstream. Fix B-tree corruption when a new record is inserted at position 0 in the node in hfs_brec_insert(). In this case a hfs_brec_update_parent() is called to update the parent index node (if exists) and it is passed hfs_find_data with a search_key containing a newly inserted key instead of the key to be updated. This results in an inconsistent index node. The bug reproduces on my machine after an extents overflow record for the catalog file (CNID=4) is inserted into the extents overflow B-tree. Because of a low (reserved) value of CNID=4, it has to become the first record in the first leaf node. The resulting first leaf node is correct: ---------------------------------------------------- | key0.CNID=4 | key1.CNID=123 | key2.CNID=456, ... | ---------------------------------------------------- But the parent index key0 still contains the previous key CNID=123: ----------------------- | key0.CNID=123 | ... | ----------------------- A change in hfs_brec_insert() makes hfs_brec_update_parent() work correctly by preventing it from getting fd->record=-1 value from __hfs_brec_find(). Along the way, I removed duplicate code with unification of the if condition. The resulting code is equivalent to the original code because node is never 0. Also hfs_brec_update_parent() will now return an error after getting a negative fd->record value. However, the return value of hfs_brec_update_parent() is not checked anywhere in the file and I'm leaving it unchanged by this patch. brec.c lacks error checking after some other calls too, but this issue is of less importance than the one being fixed by this patch. Signed-off-by: Sergei Antonov <saproj@gmail.com> Cc: Joe Perches <joe@perches.com> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Acked-by: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Anton Altaparmakov <aia21@cam.ac.uk> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 44d5f6f upstream. commit id 2ba9f0d has changed CONFIG_KVM_BOOK3S_64_HV to tristate to allow HV/PR bits to be built as modules. But the MCE code still depends on CONFIG_KVM_BOOK3S_64_HV which is wrong. When user selects CONFIG_KVM_BOOK3S_64_HV=m to build HV/PR bits as a separate module the relevant MCE code gets excluded. This patch fixes the MCE code to use CONFIG_KVM_BOOK3S_64_HANDLER. This makes sure that the relevant MCE code is included when HV/PR bits are built as a separate modules. Fixes: 2ba9f0d ("kvm: powerpc: book3s: Support building HV and PR KVM as module") Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit e03826d upstream. The register offset for REGEN2_CTRL in different for TPS659038 chip as when compared with other Palmas family PMICs. In the case of TPS659038 the wrong offset pointed to PLLEN_CTRL and was causing a hang. Correcting the same. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit e53f21b upstream. The idle_task_exit() function may call switch_mm() with next == &init_mm. On arm64, init_mm.pgd cannot be used for user mappings, so this patch simply sets the reserved TTBR0. Reported-by: Jon Medhurst (Tixy) <tixy@linaro.org> Tested-by: Jon Medhurst (Tixy) <tixy@linaro.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit f3eab71 upstream. this_cpu operations were implemented for arm64 in: 5284e1b arm64: xchg: Implement cmpxchg_double f97fc81 arm64: percpu: Implement this_cpu operations Unfortunately, it is possible for pre-emption to take place between address generation and data access. This can lead to cases where data is being manipulated by this_cpu for a different CPU than it was called on. Which effectively breaks the spec. This patch disables pre-emption for the this_cpu operations guaranteeing that address generation and data manipulation take place without a pre-emption in-between. Fixes: 5284e1b ("arm64: xchg: Implement cmpxchg_double") Fixes: f97fc81 ("arm64: percpu: Implement this_cpu operations") Reported-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Steve Capper <steve.capper@linaro.org> [catalin.marinas@arm.com: remove space after type cast] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

…date commit f6ff041 upstream. We currently use the device tree update code in the kernel after resuming from a suspend operation to re-sync the kernels view of the device tree with that of the hypervisor. The code as it stands is not endian safe as it relies on parsing buffers returned by RTAS calls that thusly contains data in big endian format. This patch annotates variables and structure members with __be types as well as performing necessary byte swaps to cpu endian for data that needs to be parsed. Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com> Cc: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit bb344ca upstream. Commit 746c9e9 "of/base: Fix PowerPC address parsing hack" limited the applicability of the workaround whereby a missing ranges is treated as an empty ranges. This workaround was hiding a bug in the etsec2 device tree nodes, which have children with reg, but did not have ranges. Signed-off-by: Scott Wood <scottwood@freescale.com> Reported-by: Alexander Graf <agraf@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 87f966d upstream. On a MIPS Malta board, tons of fifo underflow errors have been observed when using u-boot as bootloader instead of YAMON. The reason for that is that YAMON used to set the pcnet device to SRAM mode but u-boot does not. As a result, the default Tx threshold (64 bytes) is now too small to keep the fifo relatively used and it can result to Tx fifo underflow errors. As a result of which, it's best to setup the SRAM on supported controllers so we can always use the NOUFLO bit. Cc: <netdev@vger.kernel.org> Cc: <linux-kernel@vger.kernel.org> Cc: Don Fry <pcnet32@frontier.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit c864850 upstream. On success, callback function returns 0. So invert the if condition check so that we can break out of loop. Signed-off-by: Ameya Palande <2ameya@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Currently we build all Exynos dtb files if CONFIG_ARCH_EXYNOS is enabled, even if the corresponding CONFIG_ARCH_EXYNOS[345] subarch is not enabled, meaning we may build dtbs for things which can't actually run in a particular configuration. Switch instead to using the subarch option, based purely on the filename which I assume matches. Note that there doesn't apear to be any Exynos3 board files right now (or I have somehow missed them). Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: Russell King <linux@arm.linux.org.uk> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org

On some developer boards where the USB3503 is used, additional blocks are connected to it. E.g. on the Hardkernel ODROID-U2 a LAN97xx (ethernet with USB hub combo) is connected to it. The LAN97xx needs its regulator enabled, but in particular this regulator also needs to be switched off again on shutdown, otherwise it the LAN97xx is no longer detected after a reboot. This patch adds a new DT property 'ext-supply' so that one can specify which regulator has to be enabled on probe / disabled on shutdown.

Move am65_cpsw_nuss_phylink_cleanup() call to after am65_cpsw_nuss_cleanup_ndev() so phylink is still valid to prevent the below Segmentation fault on module remove when first slave link is up. [ 31.652944] Unable to handle kernel paging request at virtual address 00040008000005f4 [ 31.684627] Mem abort info: [ 31.687446] ESR = 0x0000000096000004 [ 31.704614] EC = 0x25: DABT (current EL), IL = 32 bits [ 31.720663] SET = 0, FnV = 0 [ 31.723729] EA = 0, S1PTW = 0 [ 31.740617] FSC = 0x04: level 0 translation fault [ 31.756624] Data abort info: [ 31.759508] ISV = 0, ISS = 0x00000004 [ 31.776705] CM = 0, WnR = 0 [ 31.779695] [00040008000005f4] address between user and kernel address ranges [ 31.808644] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 31.814928] Modules linked in: wlcore_sdio wl18xx wlcore mac80211 libarc4 cfg80211 rfkill crct10dif_ce phy_gmii_sel ti_am65_cpsw_nuss(-) sch_fq_codel ipv6 [ 31.828776] CPU: 0 PID: 1026 Comm: modprobe Not tainted 6.1.0-rc2-00012-gfabfcf7dafdb-dirty torvalds#160 [ 31.837547] Hardware name: Texas Instruments AM625 (DT) [ 31.842760] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 31.849709] pc : phy_stop+0x18/0xf8 [ 31.853202] lr : phylink_stop+0x38/0xf8 [ 31.857031] sp : ffff80000a0839f0 [ 31.860335] x29: ffff80000a0839f0 x28: ffff000000de1c80 x27: 0000000000000000 [ 31.867462] x26: 0000000000000000 x25: 0000000000000000 x24: ffff80000a083b98 [ 31.874589] x23: 0000000000000800 x22: 0000000000000001 x21: ffff000001bfba90 [ 31.881715] x20: ffff0000015ee000 x19: 0004000800000200 x18: 0000000000000000 [ 31.888842] x17: ffff800076c45000 x16: ffff800008004000 x15: 000058e39660b106 [ 31.895969] x14: 0000000000000144 x13: 0000000000000144 x12: 0000000000000000 [ 31.903095] x11: 000000000000275f x10: 00000000000009e0 x9 : ffff80000a0837d0 [ 31.910222] x8 : ffff000000de26c0 x7 : ffff00007fbd6540 x6 : ffff00007fbd64c0 [ 31.917349] x5 : ffff00007fbd0b10 x4 : ffff00007fbd0b10 x3 : ffff00007fbd3920 [ 31.924476] x2 : d0a07fcff8b8d500 x1 : 0000000000000000 x0 : 0004000800000200 [ 31.931603] Call trace: [ 31.934042] phy_stop+0x18/0xf8 [ 31.937177] phylink_stop+0x38/0xf8 [ 31.940657] am65_cpsw_nuss_ndo_slave_stop+0x28/0x1e0 [ti_am65_cpsw_nuss] [ 31.947452] __dev_close_many+0xa4/0x140 [ 31.951371] dev_close_many+0x84/0x128 [ 31.955115] unregister_netdevice_many+0x130/0x6d0 [ 31.959897] unregister_netdevice_queue+0x94/0xd8 [ 31.964591] unregister_netdev+0x24/0x38 [ 31.968504] am65_cpsw_nuss_cleanup_ndev.isra.0+0x48/0x70 [ti_am65_cpsw_nuss] [ 31.975637] am65_cpsw_nuss_remove+0x58/0xf8 [ti_am65_cpsw_nuss] Cc: <Stable@vger.kernel.org> # v5.18+ Fixes: e8609e6 ("net: ethernet: ti: am65-cpsw: Convert to PHYLINK") Signed-off-by: Roger Quadros <rogerq@kernel.org>

Move am65_cpsw_nuss_phylink_cleanup() call to after am65_cpsw_nuss_cleanup_ndev() so phylink is still valid. Fixes the below Segmentation fault on module remove when first slave link is up. [ 31.652944] Unable to handle kernel paging request at virtual address 00040008000005f4 [ 31.684627] Mem abort info: [ 31.687446] ESR = 0x0000000096000004 [ 31.704614] EC = 0x25: DABT (current EL), IL = 32 bits [ 31.720663] SET = 0, FnV = 0 [ 31.723729] EA = 0, S1PTW = 0 [ 31.740617] FSC = 0x04: level 0 translation fault [ 31.756624] Data abort info: [ 31.759508] ISV = 0, ISS = 0x00000004 [ 31.776705] CM = 0, WnR = 0 [ 31.779695] [00040008000005f4] address between user and kernel address ranges [ 31.808644] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 31.814928] Modules linked in: wlcore_sdio wl18xx wlcore mac80211 libarc4 cfg80211 rfkill crct10dif_ce phy_gmii_sel ti_am65_cpsw_nuss(-) sch_fq_codel ipv6 [ 31.828776] CPU: 0 PID: 1026 Comm: modprobe Not tainted 6.1.0-rc2-00012-gfabfcf7dafdb-dirty torvalds#160 [ 31.837547] Hardware name: Texas Instruments AM625 (DT) [ 31.842760] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 31.849709] pc : phy_stop+0x18/0xf8 [ 31.853202] lr : phylink_stop+0x38/0xf8 [ 31.857031] sp : ffff80000a0839f0 [ 31.860335] x29: ffff80000a0839f0 x28: ffff000000de1c80 x27: 0000000000000000 [ 31.867462] x26: 0000000000000000 x25: 0000000000000000 x24: ffff80000a083b98 [ 31.874589] x23: 0000000000000800 x22: 0000000000000001 x21: ffff000001bfba90 [ 31.881715] x20: ffff0000015ee000 x19: 0004000800000200 x18: 0000000000000000 [ 31.888842] x17: ffff800076c45000 x16: ffff800008004000 x15: 000058e39660b106 [ 31.895969] x14: 0000000000000144 x13: 0000000000000144 x12: 0000000000000000 [ 31.903095] x11: 000000000000275f x10: 00000000000009e0 x9 : ffff80000a0837d0 [ 31.910222] x8 : ffff000000de26c0 x7 : ffff00007fbd6540 x6 : ffff00007fbd64c0 [ 31.917349] x5 : ffff00007fbd0b10 x4 : ffff00007fbd0b10 x3 : ffff00007fbd3920 [ 31.924476] x2 : d0a07fcff8b8d500 x1 : 0000000000000000 x0 : 0004000800000200 [ 31.931603] Call trace: [ 31.934042] phy_stop+0x18/0xf8 [ 31.937177] phylink_stop+0x38/0xf8 [ 31.940657] am65_cpsw_nuss_ndo_slave_stop+0x28/0x1e0 [ti_am65_cpsw_nuss] [ 31.947452] __dev_close_many+0xa4/0x140 [ 31.951371] dev_close_many+0x84/0x128 [ 31.955115] unregister_netdevice_many+0x130/0x6d0 [ 31.959897] unregister_netdevice_queue+0x94/0xd8 [ 31.964591] unregister_netdev+0x24/0x38 [ 31.968504] am65_cpsw_nuss_cleanup_ndev.isra.0+0x48/0x70 [ti_am65_cpsw_nuss] [ 31.975637] am65_cpsw_nuss_remove+0x58/0xf8 [ti_am65_cpsw_nuss] Cc: <Stable@vger.kernel.org> # v5.18+ Signed-off-by: Roger Quadros <rogerq@kernel.org>

Move am65_cpsw_nuss_phylink_cleanup() call to after am65_cpsw_nuss_cleanup_ndev() so phylink is still valid to prevent the below Segmentation fault on module remove when first slave link is up. [ 31.652944] Unable to handle kernel paging request at virtual address 00040008000005f4 [ 31.684627] Mem abort info: [ 31.687446] ESR = 0x0000000096000004 [ 31.704614] EC = 0x25: DABT (current EL), IL = 32 bits [ 31.720663] SET = 0, FnV = 0 [ 31.723729] EA = 0, S1PTW = 0 [ 31.740617] FSC = 0x04: level 0 translation fault [ 31.756624] Data abort info: [ 31.759508] ISV = 0, ISS = 0x00000004 [ 31.776705] CM = 0, WnR = 0 [ 31.779695] [00040008000005f4] address between user and kernel address ranges [ 31.808644] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 31.814928] Modules linked in: wlcore_sdio wl18xx wlcore mac80211 libarc4 cfg80211 rfkill crct10dif_ce phy_gmii_sel ti_am65_cpsw_nuss(-) sch_fq_codel ipv6 [ 31.828776] CPU: 0 PID: 1026 Comm: modprobe Not tainted 6.1.0-rc2-00012-gfabfcf7dafdb-dirty torvalds#160 [ 31.837547] Hardware name: Texas Instruments AM625 (DT) [ 31.842760] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 31.849709] pc : phy_stop+0x18/0xf8 [ 31.853202] lr : phylink_stop+0x38/0xf8 [ 31.857031] sp : ffff80000a0839f0 [ 31.860335] x29: ffff80000a0839f0 x28: ffff000000de1c80 x27: 0000000000000000 [ 31.867462] x26: 0000000000000000 x25: 0000000000000000 x24: ffff80000a083b98 [ 31.874589] x23: 0000000000000800 x22: 0000000000000001 x21: ffff000001bfba90 [ 31.881715] x20: ffff0000015ee000 x19: 0004000800000200 x18: 0000000000000000 [ 31.888842] x17: ffff800076c45000 x16: ffff800008004000 x15: 000058e39660b106 [ 31.895969] x14: 0000000000000144 x13: 0000000000000144 x12: 0000000000000000 [ 31.903095] x11: 000000000000275f x10: 00000000000009e0 x9 : ffff80000a0837d0 [ 31.910222] x8 : ffff000000de26c0 x7 : ffff00007fbd6540 x6 : ffff00007fbd64c0 [ 31.917349] x5 : ffff00007fbd0b10 x4 : ffff00007fbd0b10 x3 : ffff00007fbd3920 [ 31.924476] x2 : d0a07fcff8b8d500 x1 : 0000000000000000 x0 : 0004000800000200 [ 31.931603] Call trace: [ 31.934042] phy_stop+0x18/0xf8 [ 31.937177] phylink_stop+0x38/0xf8 [ 31.940657] am65_cpsw_nuss_ndo_slave_stop+0x28/0x1e0 [ti_am65_cpsw_nuss] [ 31.947452] __dev_close_many+0xa4/0x140 [ 31.951371] dev_close_many+0x84/0x128 [ 31.955115] unregister_netdevice_many+0x130/0x6d0 [ 31.959897] unregister_netdevice_queue+0x94/0xd8 [ 31.964591] unregister_netdev+0x24/0x38 [ 31.968504] am65_cpsw_nuss_cleanup_ndev.isra.0+0x48/0x70 [ti_am65_cpsw_nuss] [ 31.975637] am65_cpsw_nuss_remove+0x58/0xf8 [ti_am65_cpsw_nuss] Cc: <Stable@vger.kernel.org> # v5.18+ Fixes: e8609e6 ("net: ethernet: ti: am65-cpsw: Convert to PHYLINK") Signed-off-by: Roger Quadros <rogerq@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>

Move am65_cpsw_nuss_phylink_cleanup() call to after am65_cpsw_nuss_cleanup_ndev() so phylink is still valid. Fixes the below Segmentation fault on module remove when first slave link is up. [ 31.652944] Unable to handle kernel paging request at virtual address 00040008000005f4 [ 31.684627] Mem abort info: [ 31.687446] ESR = 0x0000000096000004 [ 31.704614] EC = 0x25: DABT (current EL), IL = 32 bits [ 31.720663] SET = 0, FnV = 0 [ 31.723729] EA = 0, S1PTW = 0 [ 31.740617] FSC = 0x04: level 0 translation fault [ 31.756624] Data abort info: [ 31.759508] ISV = 0, ISS = 0x00000004 [ 31.776705] CM = 0, WnR = 0 [ 31.779695] [00040008000005f4] address between user and kernel address ranges [ 31.808644] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 31.814928] Modules linked in: wlcore_sdio wl18xx wlcore mac80211 libarc4 cfg80211 rfkill crct10dif_ce phy_gmii_sel ti_am65_cpsw_nuss(-) sch_fq_codel ipv6 [ 31.828776] CPU: 0 PID: 1026 Comm: modprobe Not tainted 6.1.0-rc2-00012-gfabfcf7dafdb-dirty torvalds#160 [ 31.837547] Hardware name: Texas Instruments AM625 (DT) [ 31.842760] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 31.849709] pc : phy_stop+0x18/0xf8 [ 31.853202] lr : phylink_stop+0x38/0xf8 [ 31.857031] sp : ffff80000a0839f0 [ 31.860335] x29: ffff80000a0839f0 x28: ffff000000de1c80 x27: 0000000000000000 [ 31.867462] x26: 0000000000000000 x25: 0000000000000000 x24: ffff80000a083b98 [ 31.874589] x23: 0000000000000800 x22: 0000000000000001 x21: ffff000001bfba90 [ 31.881715] x20: ffff0000015ee000 x19: 0004000800000200 x18: 0000000000000000 [ 31.888842] x17: ffff800076c45000 x16: ffff800008004000 x15: 000058e39660b106 [ 31.895969] x14: 0000000000000144 x13: 0000000000000144 x12: 0000000000000000 [ 31.903095] x11: 000000000000275f x10: 00000000000009e0 x9 : ffff80000a0837d0 [ 31.910222] x8 : ffff000000de26c0 x7 : ffff00007fbd6540 x6 : ffff00007fbd64c0 [ 31.917349] x5 : ffff00007fbd0b10 x4 : ffff00007fbd0b10 x3 : ffff00007fbd3920 [ 31.924476] x2 : d0a07fcff8b8d500 x1 : 0000000000000000 x0 : 0004000800000200 [ 31.931603] Call trace: [ 31.934042] phy_stop+0x18/0xf8 [ 31.937177] phylink_stop+0x38/0xf8 [ 31.940657] am65_cpsw_nuss_ndo_slave_stop+0x28/0x1e0 [ti_am65_cpsw_nuss] [ 31.947452] __dev_close_many+0xa4/0x140 [ 31.951371] dev_close_many+0x84/0x128 [ 31.955115] unregister_netdevice_many+0x130/0x6d0 [ 31.959897] unregister_netdevice_queue+0x94/0xd8 [ 31.964591] unregister_netdev+0x24/0x38 [ 31.968504] am65_cpsw_nuss_cleanup_ndev.isra.0+0x48/0x70 [ti_am65_cpsw_nuss] [ 31.975637] am65_cpsw_nuss_remove+0x58/0xf8 [ti_am65_cpsw_nuss] Cc: <Stable@vger.kernel.org> # v5.18+ Signed-off-by: Roger Quadros <rogerq@kernel.org>

commit 1a0c016 upstream. Move am65_cpsw_nuss_phylink_cleanup() call to after am65_cpsw_nuss_cleanup_ndev() so phylink is still valid to prevent the below Segmentation fault on module remove when first slave link is up. [ 31.652944] Unable to handle kernel paging request at virtual address 00040008000005f4 [ 31.684627] Mem abort info: [ 31.687446] ESR = 0x0000000096000004 [ 31.704614] EC = 0x25: DABT (current EL), IL = 32 bits [ 31.720663] SET = 0, FnV = 0 [ 31.723729] EA = 0, S1PTW = 0 [ 31.740617] FSC = 0x04: level 0 translation fault [ 31.756624] Data abort info: [ 31.759508] ISV = 0, ISS = 0x00000004 [ 31.776705] CM = 0, WnR = 0 [ 31.779695] [00040008000005f4] address between user and kernel address ranges [ 31.808644] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 31.814928] Modules linked in: wlcore_sdio wl18xx wlcore mac80211 libarc4 cfg80211 rfkill crct10dif_ce phy_gmii_sel ti_am65_cpsw_nuss(-) sch_fq_codel ipv6 [ 31.828776] CPU: 0 PID: 1026 Comm: modprobe Not tainted 6.1.0-rc2-00012-gfabfcf7dafdb-dirty torvalds#160 [ 31.837547] Hardware name: Texas Instruments AM625 (DT) [ 31.842760] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 31.849709] pc : phy_stop+0x18/0xf8 [ 31.853202] lr : phylink_stop+0x38/0xf8 [ 31.857031] sp : ffff80000a0839f0 [ 31.860335] x29: ffff80000a0839f0 x28: ffff000000de1c80 x27: 0000000000000000 [ 31.867462] x26: 0000000000000000 x25: 0000000000000000 x24: ffff80000a083b98 [ 31.874589] x23: 0000000000000800 x22: 0000000000000001 x21: ffff000001bfba90 [ 31.881715] x20: ffff0000015ee000 x19: 0004000800000200 x18: 0000000000000000 [ 31.888842] x17: ffff800076c45000 x16: ffff800008004000 x15: 000058e39660b106 [ 31.895969] x14: 0000000000000144 x13: 0000000000000144 x12: 0000000000000000 [ 31.903095] x11: 000000000000275f x10: 00000000000009e0 x9 : ffff80000a0837d0 [ 31.910222] x8 : ffff000000de26c0 x7 : ffff00007fbd6540 x6 : ffff00007fbd64c0 [ 31.917349] x5 : ffff00007fbd0b10 x4 : ffff00007fbd0b10 x3 : ffff00007fbd3920 [ 31.924476] x2 : d0a07fcff8b8d500 x1 : 0000000000000000 x0 : 0004000800000200 [ 31.931603] Call trace: [ 31.934042] phy_stop+0x18/0xf8 [ 31.937177] phylink_stop+0x38/0xf8 [ 31.940657] am65_cpsw_nuss_ndo_slave_stop+0x28/0x1e0 [ti_am65_cpsw_nuss] [ 31.947452] __dev_close_many+0xa4/0x140 [ 31.951371] dev_close_many+0x84/0x128 [ 31.955115] unregister_netdevice_many+0x130/0x6d0 [ 31.959897] unregister_netdevice_queue+0x94/0xd8 [ 31.964591] unregister_netdev+0x24/0x38 [ 31.968504] am65_cpsw_nuss_cleanup_ndev.isra.0+0x48/0x70 [ti_am65_cpsw_nuss] [ 31.975637] am65_cpsw_nuss_remove+0x58/0xf8 [ti_am65_cpsw_nuss] Cc: <Stable@vger.kernel.org> # v5.18+ Fixes: e8609e6 ("net: ethernet: ti: am65-cpsw: Convert to PHYLINK") Signed-off-by: Roger Quadros <rogerq@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Move am65_cpsw_nuss_phylink_cleanup() call to after am65_cpsw_nuss_cleanup_ndev() so phylink is still valid to prevent the below Segmentation fault on module remove when first slave link is up. [ 31.652944] Unable to handle kernel paging request at virtual address 00040008000005f4 [ 31.684627] Mem abort info: [ 31.687446] ESR = 0x0000000096000004 [ 31.704614] EC = 0x25: DABT (current EL), IL = 32 bits [ 31.720663] SET = 0, FnV = 0 [ 31.723729] EA = 0, S1PTW = 0 [ 31.740617] FSC = 0x04: level 0 translation fault [ 31.756624] Data abort info: [ 31.759508] ISV = 0, ISS = 0x00000004 [ 31.776705] CM = 0, WnR = 0 [ 31.779695] [00040008000005f4] address between user and kernel address ranges [ 31.808644] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 31.814928] Modules linked in: wlcore_sdio wl18xx wlcore mac80211 libarc4 cfg80211 rfkill crct10dif_ce phy_gmii_sel ti_am65_cpsw_nuss(-) sch_fq_codel ipv6 [ 31.828776] CPU: 0 PID: 1026 Comm: modprobe Not tainted 6.1.0-rc2-00012-gfabfcf7dafdb-dirty torvalds#160 [ 31.837547] Hardware name: Texas Instruments AM625 (DT) [ 31.842760] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 31.849709] pc : phy_stop+0x18/0xf8 [ 31.853202] lr : phylink_stop+0x38/0xf8 [ 31.857031] sp : ffff80000a0839f0 [ 31.860335] x29: ffff80000a0839f0 x28: ffff000000de1c80 x27: 0000000000000000 [ 31.867462] x26: 0000000000000000 x25: 0000000000000000 x24: ffff80000a083b98 [ 31.874589] x23: 0000000000000800 x22: 0000000000000001 x21: ffff000001bfba90 [ 31.881715] x20: ffff0000015ee000 x19: 0004000800000200 x18: 0000000000000000 [ 31.888842] x17: ffff800076c45000 x16: ffff800008004000 x15: 000058e39660b106 [ 31.895969] x14: 0000000000000144 x13: 0000000000000144 x12: 0000000000000000 [ 31.903095] x11: 000000000000275f x10: 00000000000009e0 x9 : ffff80000a0837d0 [ 31.910222] x8 : ffff000000de26c0 x7 : ffff00007fbd6540 x6 : ffff00007fbd64c0 [ 31.917349] x5 : ffff00007fbd0b10 x4 : ffff00007fbd0b10 x3 : ffff00007fbd3920 [ 31.924476] x2 : d0a07fcff8b8d500 x1 : 0000000000000000 x0 : 0004000800000200 [ 31.931603] Call trace: [ 31.934042] phy_stop+0x18/0xf8 [ 31.937177] phylink_stop+0x38/0xf8 [ 31.940657] am65_cpsw_nuss_ndo_slave_stop+0x28/0x1e0 [ti_am65_cpsw_nuss] [ 31.947452] __dev_close_many+0xa4/0x140 [ 31.951371] dev_close_many+0x84/0x128 [ 31.955115] unregister_netdevice_many+0x130/0x6d0 [ 31.959897] unregister_netdevice_queue+0x94/0xd8 [ 31.964591] unregister_netdev+0x24/0x38 [ 31.968504] am65_cpsw_nuss_cleanup_ndev.isra.0+0x48/0x70 [ti_am65_cpsw_nuss] [ 31.975637] am65_cpsw_nuss_remove+0x58/0xf8 [ti_am65_cpsw_nuss] Cc: <Stable@vger.kernel.org> # v5.18+ Fixes: e8609e6 ("net: ethernet: ti: am65-cpsw: Convert to PHYLINK") Signed-off-by: Roger Quadros <rogerq@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>

It was first found on HUAWEI Kirin 9006C platform with a builtin xhci controller during stress cycle test(stress-ng, glmark2, x11perf, S4...). phase one: [26788.706878] PM: dpm_run_callback(): platform_pm_thaw+0x0/0x68 returns -12 [26788.706878] PM: Device xhci-hcd.1.auto failed to thaw async: error -12 ... phase two: [28650.583496] [2023:01:19 04:43:29]Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028 ... [28650.583526] user pgtable: 4k pages, 39-bit VAs, pgdp=000000027862a000 [28650.583557] [0000000000000028] pgd=0000000000000000 ... [28650.583587] pc : xhci_suspend+0x154/0x5b0 [28650.583618] lr : xhci_suspend+0x148/0x5b0 [28650.583618] sp : ffffffc01c7ebbd0 [28650.583618] x29: ffffffc01c7ebbd0 x28: ffffffec834d0000 [28650.583618] x27: ffffffc0106a3cc8 x26: ffffffb2c540c848 [28650.583618] x25: 0000000000000000 x24: ffffffec82ee30b0 [28650.583618] x23: ffffffb43b31c2f8 x22: 0000000000000000 [28650.583618] x21: 0000000000000000 x20: ffffffb43b31c000 [28650.583648] x19: ffffffb43b31c2a8 x18: 0000000000000001 [28650.583648] x17: 0000000000000803 x16: 00000000fffffffe [28650.583648] x15: 0000000000001000 x14: ffffffb150b67e00 [28650.583648] x13: 00000000f0000000 x12: 0000000000000001 [28650.583648] x11: 0000000000000000 x10: 0000000000000a80 [28650.583648] x9 : ffffffc01c7eba00 x8 : ffffffb43ad10ae0 [28650.583648] x7 : ffffffb84cd98dc0 x6 : 0000000cceb6a101 [28650.583679] x5 : 00ffffffffffffff x4 : 0000000000000001 [28650.583679] x3 : 0000000000000011 x2 : 0000000000e2cfa8 [28650.583679] x1 : 00000000823535e1 x0 : 0000000000000000 gdb: (gdb) l *(xhci_suspend+0x154) 0xffffffc010b6cd44 is in xhci_suspend (/.../drivers/usb/host/xhci.c:854). 849 { 850 struct xhci_ring *ring; 851 struct xhci_segment *seg; 852 853 ring = xhci->cmd_ring; 854 seg = ring->deq_seg; (gdb) disassemble 0xffffffc010b6cd44 ... 0xffffffc010b6cd40 <+336>: ldr x22, [x19, torvalds#160] 0xffffffc010b6cd44 <+340>: ldr x20, [x22, torvalds#40] 0xffffffc010b6cd48 <+344>: mov w1, #0x0 // #0 During phase one, platform_pm_thaw called xhci_plat_resume which called xhci_resume. The rest possible calling routine might be xhci_resume->xhci_init->xhci_mem_init, and xhci->cmd_ring was cleaned in xhci_mem_cleanup before xhci_mem_init returned -ENOMEM. During phase two, systemd was tring to hibernate again and called xhci_suspend, then xhci_clear_command_ring dereferenced xhci->cmd_ring which was already NULL. So if xhci->cmd_ring is NULL, xhci_clear_command_ring just return. Co-developed-by: sunke <sunke@kylinos.cn> Signed-off-by: sunke <sunke@kylinos.cn> Signed-off-by: Hongyu Xie <xiehongyu1@kylinos.cn>

It was first found on HUAWEI Kirin 9006C platform with a builtin xhci controller during stress cycle test(stress-ng, glmark2, x11perf, S4...). phase one: [26788.706878] PM: dpm_run_callback(): platform_pm_thaw+0x0/0x68 returns -12 [26788.706878] PM: Device xhci-hcd.1.auto failed to thaw async: error -12 ... phase two: [28650.583496] [2023:01:19 04:43:29]Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028 ... [28650.583526] user pgtable: 4k pages, 39-bit VAs, pgdp=000000027862a000 [28650.583557] [0000000000000028] pgd=0000000000000000 ... [28650.583587] pc : xhci_suspend+0x154/0x5b0 [28650.583618] lr : xhci_suspend+0x148/0x5b0 [28650.583618] sp : ffffffc01c7ebbd0 [28650.583618] x29: ffffffc01c7ebbd0 x28: ffffffec834d0000 [28650.583618] x27: ffffffc0106a3cc8 x26: ffffffb2c540c848 [28650.583618] x25: 0000000000000000 x24: ffffffec82ee30b0 [28650.583618] x23: ffffffb43b31c2f8 x22: 0000000000000000 [28650.583618] x21: 0000000000000000 x20: ffffffb43b31c000 [28650.583648] x19: ffffffb43b31c2a8 x18: 0000000000000001 [28650.583648] x17: 0000000000000803 x16: 00000000fffffffe [28650.583648] x15: 0000000000001000 x14: ffffffb150b67e00 [28650.583648] x13: 00000000f0000000 x12: 0000000000000001 [28650.583648] x11: 0000000000000000 x10: 0000000000000a80 [28650.583648] x9 : ffffffc01c7eba00 x8 : ffffffb43ad10ae0 [28650.583648] x7 : ffffffb84cd98dc0 x6 : 0000000cceb6a101 [28650.583679] x5 : 00ffffffffffffff x4 : 0000000000000001 [28650.583679] x3 : 0000000000000011 x2 : 0000000000e2cfa8 [28650.583679] x1 : 00000000823535e1 x0 : 0000000000000000 gdb: (gdb) l *(xhci_suspend+0x154) 0xffffffc010b6cd44 is in xhci_suspend (/.../drivers/usb/host/xhci.c:854). 849 { 850 struct xhci_ring *ring; 851 struct xhci_segment *seg; 852 853 ring = xhci->cmd_ring; 854 seg = ring->deq_seg; (gdb) disassemble 0xffffffc010b6cd44 ... 0xffffffc010b6cd40 <+336>: ldr x22, [x19, torvalds#160] 0xffffffc010b6cd44 <+340>: ldr x20, [x22, torvalds#40] 0xffffffc010b6cd48 <+344>: mov w1, #0x0 // #0 During phase one, platform_pm_thaw called xhci_plat_resume which called xhci_resume. The rest possible calling routine might be xhci_resume->xhci_init->xhci_mem_init, and xhci->cmd_ring was cleaned in xhci_mem_cleanup before xhci_mem_init returned -ENOMEM. During phase two, systemd was tring to hibernate again and called xhci_suspend, then xhci_clear_command_ring dereferenced xhci->cmd_ring which was already NULL. So if xhci->cmd_ring is NULL, xhci_clear_command_ring just return. Fixes: 8982132 ("xhci: Fix command ring replay after resume.") Cc: stable@vger.kernel.org # 2.6.27+ Co-developed-by: sunke <sunke@kylinos.cn> Signed-off-by: sunke <sunke@kylinos.cn> Signed-off-by: Hongyu Xie <xiehongyu1@kylinos.cn>

Add a new selftest to check the PTR_UNTRUSTED condition. Below is the result, torvalds#160 ptr_untrusted:OK Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Link: https://lore.kernel.org/r/20230713025642.27477-5-laoar.shao@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>

Signed-off-by: Feng Zhang <feng@radxa.com>

evsel__increase_rlimit() helper does nothing with evsel, and description of the functionality is inaccurate, rename it and move to util/rlimit.c. By the way, fix a checkppatch warning about misplaced license tag: WARNING: Misplaced SPDX-License-Identifier tag - use line 1 instead torvalds#160: FILE: tools/perf/util/rlimit.h:3: /* SPDX-License-Identifier: LGPL-2.1 */ No functional change. Signed-off-by: Yang Jihong <yangjihong1@huawei.com>

evsel__increase_rlimit() helper does nothing with evsel, and description of the functionality is inaccurate, rename it and move to util/rlimit.c. By the way, fix a checkppatch warning about misplaced license tag: WARNING: Misplaced SPDX-License-Identifier tag - use line 1 instead torvalds#160: FILE: tools/perf/util/rlimit.h:3: /* SPDX-License-Identifier: LGPL-2.1 */ No functional change. Signed-off-by: Yang Jihong <yangjihong1@huawei.com> Link: https://lore.kernel.org/r/20231023033144.1011896-1-yangjihong1@huawei.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>

device_add() expects that any memory allocated via devm_* API is only done in the device's probe function. Fix below boot warning: WARNING: CPU: 1 PID: 1 at drivers/base/dd.c:286 driver_probe_device+0x2b4/0x2f4() Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.16.0-10474-g835c90b-dirty torvalds#160 [<c0016364>] (unwind_backtrace) from [<c001251c>] (show_stack+0x20/0x24) [<c001251c>] (show_stack) from [<c04eaefc>] (dump_stack+0x7c/0x98) [<c04eaefc>] (dump_stack) from [<c0023d4c>] (warn_slowpath_common+0x78/0x9c) [<c0023d4c>] (warn_slowpath_common) from [<c0023d9c>] (warn_slowpath_null+0x2c/0x34) [<c0023d9c>] (warn_slowpath_null) from [<c0302c60>] (driver_probe_device+0x2b4/0x2f4) [<c0302c60>] (driver_probe_device) from [<c0302d90>] (__device_attach+0x50/0x54) [<c0302d90>] (__device_attach) from [<c0300e60>] (bus_for_each_drv+0x54/0x9c) [<c0300e60>] (bus_for_each_drv) from [<c0302958>] (device_attach+0x84/0x90) [<c0302958>] (device_attach) from [<c0301f10>] (bus_probe_device+0x94/0xb8) [<c0301f10>] (bus_probe_device) from [<c03000c0>] (device_add+0x434/0x4fc) [<c03000c0>] (device_add) from [<c0342dd4>] (spi_add_device+0x98/0x164) [<c0342dd4>] (spi_add_device) from [<c03444a4>] (spi_register_master+0x598/0x768) [<c03444a4>] (spi_register_master) from [<c03446b4>] (devm_spi_register_master+0x40/0x80) [<c03446b4>] (devm_spi_register_master) from [<c0346214>] (dw_spi_add_host+0x1a8/0x258) [<c0346214>] (dw_spi_add_host) from [<c0346920>] (dw_spi_mmio_probe+0x1d4/0x294) [<c0346920>] (dw_spi_mmio_probe) from [<c0304560>] (platform_drv_probe+0x3c/0x6c) [<c0304560>] (platform_drv_probe) from [<c0302a98>] (driver_probe_device+0xec/0x2f4) [<c0302a98>] (driver_probe_device) from [<c0302d3c>] (__driver_attach+0x9c/0xa0) [<c0302d3c>] (__driver_attach) from [<c0300f0c>] (bus_for_each_dev+0x64/0x98) [<c0300f0c>] (bus_for_each_dev) from [<c0302518>] (driver_attach+0x2c/0x30) [<c0302518>] (driver_attach) from [<c0302134>] (bus_add_driver+0xdc/0x1f4) [<c0302134>] (bus_add_driver) from [<c03035c8>] (driver_register+0x88/0x104) [<c03035c8>] (driver_register) from [<c030445c>] (__platform_driver_register+0x58/0x6c) [<c030445c>] (__platform_driver_register) from [<c0700f00>] (dw_spi_mmio_driver_init+0x18/0x20) [<c0700f00>] (dw_spi_mmio_driver_init) from [<c0008914>] (do_one_initcall+0x90/0x1d4) [<c0008914>] (do_one_initcall) from [<c06d7d90>] (kernel_init_freeable+0x178/0x248) [<c06d7d90>] (kernel_init_freeable) from [<c04e687c>] (kernel_init+0x18/0xfc) [<c04e687c>] (kernel_init) from [<c000ecd8>] (ret_from_fork+0x14/0x20) Reported-by: Thor Thayer <tthayer@opensource.altera.com> Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org

The distributor and PMR/RPR can present different views of the interrupt priority space dependent upon the values of GICD_CTLR.DS and SCR_EL3.FIQ. Currently we treat the distributor's view of the priority space as canonical, and when the two differ we change the way we handle values in the PMR/RPR, using the `gic_nonsecure_priorities` static key to decide what to do. This approach works, but it's sub-optimal. When using pseudo-NMI we manipulate the distributor rarely, and we manipulate the PMR/RPR registers very frequently in code spread out throughout the kernel (e.g. local_irq_{save,restore}()). It would be nicer if we could use fixed values for the PMR/RPR, and dynamically choose the values programmed into the distributor. This patch changes the GICv3 driver and arm64 code accordingly. PMR values are chosen at compile time, and the GICv3 driver determines the appropriate values to program into the distributor at boot time. This removes the need for the `gic_nonsecure_priorities` static key and results in smaller and better generated code for saving/restoring the irqflags. Before this patch, local_irq_disable() compiles to: | 0000000000000000 <outlined_local_irq_disable>: | 0: d503201f nop | 4: d50343df msr daifset, #0x3 | 8: d65f03c0 ret | c: d503201f nop | 10: d2800c00 mov x0, #0x60 // torvalds#96 | 14: d5184600 msr icc_pmr_el1, x0 | 18: d65f03c0 ret | 1c: d2801400 mov x0, #0xa0 // torvalds#160 | 20: 17fffffd b 14 <outlined_local_irq_disable+0x14> After this patch, local_irq_disable() compiles to: | 0000000000000000 <outlined_local_irq_disable>: | 0: d503201f nop | 4: d50343df msr daifset, #0x3 | 8: d65f03c0 ret | c: d2801800 mov x0, #0xc0 // torvalds#192 | 10: d5184600 msr icc_pmr_el1, x0 | 14: d65f03c0 ret ... with 3 fewer instructions per call. For defconfig + CONFIG_PSEUDO_NMI=y, this results in a minor saving of ~4K of text, and will make it easier to make further improvements to the way we manipulate irqflags and DAIF bits. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Alexandru Elisei <alexandru.elisei@arm.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will@kernel.org> Reviewed-by: Marc Zyngier <maz@kernel.org> Tested-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20240617111841.2529370-6-mark.rutland@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Thomas Gleixner <tglx@linutronix.de>

This test case checks the errno message when percpu map value size exceeds PCPU_MIN_UNIT_SIZE. root@debian:~# ./test_progs -t map_init torvalds#160/1 map_init/pcpu_map_init:OK torvalds#160/2 map_init/pcpu_lru_map_init:OK torvalds#160/3 map_init/pcpu map value size:OK torvalds#160 map_init:OK Summary: 1/3 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Tao Chen <chen.dylane@gmail.com> Signed-off-by: jinke han <jinkehan@didiglobal.com>

…ream spinlock The change protects almost the whole body of u_audio_iso_complete() function by PCM stream lock, this is mainly sufficient to avoid a race between USB request completion and stream termination, the change prevents a possibility of invalid memory access in interrupt context by memcpy(): Unable to handle kernel paging request at virtual address 00004e80 pgd = c0004000 [00004e80] *pgd=00000000 Internal error: Oops: 817 [#1] PREEMPT SMP ARM CPU: 0 PID: 3 Comm: ksoftirqd/0 Tainted: G C 3.14.54+ torvalds#117 task: da180b80 ti: da192000 task.ti: da192000 PC is at memcpy+0x50/0x330 LR is at 0xcdd92b0e pc : [<c029ef30>] lr : [<cdd92b0e>] psr: 20000193 sp : da193ce4 ip : dd86ae26 fp : 0000b180 r10: daf81680 r9 : 00000000 r8 : d58a01ea r7 : 2c0b43e4 r6 : acdfb08b r5 : 01a271cf r4 : 87389377 r3 : 69469782 r2 : 00000020 r1 : daf82fe0 r0 : 00004e80 Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 2b70804a DAC: 00000015 Process ksoftirqd/0 (pid: 3, stack limit = 0xda192238) Also added a check for potential !runtime condition, commonly it is done by PCM_RUNTIME_CHECK(substream) in the beginning, however this does not completely prevent from oopses in u_audio_iso_complete(), because the proper protection scheme must be implemented in PCM library functions. An example of *not fixed* oops due to substream->runtime->* dereference by snd_pcm_running(substream) from snd_pcm_period_elapsed(), where substream->runtime is gone while waiting the substream lock: Unable to handle kernel paging request at virtual address 6b6b6b6b pgd = db7e4000 [6b6b6b6b] *pgd=00000000 CPU: 0 PID: 193 Comm: klogd Tainted: G C 3.14.54+ torvalds#118 task: db5ac500 ti: db60c000 task.ti: db60c000 PC is at snd_pcm_period_elapsed+0x48/0xd8 [snd_pcm] LR is at snd_pcm_period_elapsed+0x40/0xd8 [snd_pcm] pc : [<>] lr : [<>] psr: 60000193 Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user Control: 10c5387d Table: 2b7e404a DAC: 00000015 Process klogd (pid: 193, stack limit = 0xdb60c238) [<>] (snd_pcm_period_elapsed [snd_pcm]) from [<>] (udc_irq+0x500/0xbbc) [<>] (udc_irq) from [<>] (ci_irq+0x280/0x304) [<>] (ci_irq) from [<>] (handle_irq_event_percpu+0xa4/0x40c) [<>] (handle_irq_event_percpu) from [<>] (handle_irq_event+0x3c/0x5c) [<>] (handle_irq_event) from [<>] (handle_fasteoi_irq+0xc4/0x110) [<>] (handle_fasteoi_irq) from [<>] (generic_handle_irq+0x20/0x30) [<>] (generic_handle_irq) from [<>] (handle_IRQ+0x80/0xc0) [<>] (handle_IRQ) from [<>] (gic_handle_irq+0x3c/0x60) [<>] (gic_handle_irq) from [<>] (__irq_svc+0x44/0x78) Change-Id: I0b0e20f1aaf7c093c7fc198128186cfb637bdbf4 Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> [erosca: W/o this patch, with minimal instrumentation [1], I can consistently reproduce BUG: KASAN: use-after-free [2]] [1] Instrumentation to reproduce issue [2]: diff --git a/drivers/usb/gadget/function/u_audio.c b/drivers/usb/gadget/function/u_audio.c index a72295c953bb..bd0b308024fe 100644 --- a/drivers/usb/gadget/function/u_audio.c +++ b/drivers/usb/gadget/function/u_audio.c @@ -16,6 +16,7 @@ #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> +#include <linux/delay.h> #include "u_audio.h" @@ -147,6 +148,8 @@ static void u_audio_iso_complete(struct usb_ep *ep, struct usb_request *req) spin_unlock_irqrestore(&prm->lock, flags); + udelay(500); //delay here to increase probability of parallel activities + /* Pack USB load in ALSA ring buffer */ pending = prm->dma_bytes - hw_ptr; [2] After applying [1], below BUG occurs on Rcar-H3-Salvator-X board: ================================================================== BUG: KASAN: use-after-free in u_audio_iso_complete+0x24c/0x520 [u_audio] Read of size 8 at addr ffff8006cafcc248 by task swapper/0/0 CPU: 0 PID: 0 Comm: swapper/0 Tainted: G WC 4.14.47+ torvalds#160 Hardware name: Renesas Salvator-X board based on r8a7795 ES2.0+ (DT) Call trace: [<ffff2000080925ac>] dump_backtrace+0x0/0x364 [<ffff200008092924>] show_stack+0x14/0x1c [<ffff200008f8dbcc>] dump_stack+0x108/0x174 [<ffff2000083c71b8>] print_address_description+0x7c/0x32c [<ffff2000083c78e8>] kasan_report+0x324/0x354 [<ffff2000083c6114>] __asan_load8+0x24/0x94 [<ffff2000021d1b34>] u_audio_iso_complete+0x24c/0x520 [u_audio] [<ffff20000152fe50>] usb_gadget_giveback_request+0x480/0x4d0 [udc_core] [<ffff200001860ab8>] usbhsg_queue_done+0x100/0x130 [renesas_usbhs] [<ffff20000185f814>] usbhsf_pkt_handler+0x1a4/0x298 [renesas_usbhs] [<ffff20000185fb38>] usbhsf_irq_ready+0x128/0x178 [renesas_usbhs] [<ffff200001859cc8>] usbhs_interrupt+0x440/0x490 [renesas_usbhs] [<ffff2000081a0288>] __handle_irq_event_percpu+0x594/0xa58 [<ffff2000081a07d0>] handle_irq_event_percpu+0x84/0x12c [<ffff2000081a0928>] handle_irq_event+0xb0/0x10c [<ffff2000081a8384>] handle_fasteoi_irq+0x1e0/0x2ec [<ffff20000819e5f8>] generic_handle_irq+0x2c/0x44 [<ffff20000819f0d0>] __handle_domain_irq+0x190/0x194 [<ffff20000808177c>] gic_handle_irq+0x80/0xac Exception stack(0xffff200009e97c80 to 0xffff200009e97dc0) 7c80: 0000000000000000 0000000000000000 0000000000000003 ffff200008179298 7ca0: ffff20000ae1c180 dfff200000000000 0000000000000000 ffff2000081f9a88 7cc0: ffff200009eb5960 ffff200009e97cf0 0000000000001600 ffff0400041b064b 7ce0: 0000000000000000 0000000000000002 0000000200000001 0000000000000001 7d00: ffff20000842197c 0000ffff958c4970 0000000000000000 ffff8006da0d5b80 7d20: ffff8006d4678498 0000000000000000 000000126bde0a8b ffff8006d4678480 7d40: 0000000000000000 000000126bdbea64 ffff200008fd0000 ffff8006fffff980 7d60: 00000000495f0018 ffff200009e97dc0 ffff200008b6c4ec ffff200009e97dc0 7d80: ffff200008b6c4f0 0000000020000145 ffff8006da0d5b80 ffff8006d4678498 7da0: ffffffffffffffff ffff8006d4678498 ffff200009e97dc0 ffff200008b6c4f0 [<ffff200008084034>] el1_irq+0xb4/0x12c [<ffff200008b6c4f0>] cpuidle_enter_state+0x818/0x844 [<ffff200008b6c59c>] cpuidle_enter+0x18/0x20 [<ffff20000815f2e4>] call_cpuidle+0x98/0x9c [<ffff20000815f674>] do_idle+0x214/0x264 [<ffff20000815facc>] cpu_startup_entry+0x20/0x24 [<ffff200008fb09d8>] rest_init+0x30c/0x320 [<ffff2000095f1338>] start_kernel+0x570/0x5b0 ---<-snip->--- Fixes: 132fcb4 ("usb: gadget: Add Audio Class 2.0 Driver") Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: William Wu <william.wu@rock-chips.com> (cherry picked from commit 56bc615)

Malcolm Priestley and others added 28 commits April 13, 2015 14:03

Linux 3.19.4

31ad7cd

usb3503: Add 'usb3503-gpio-waittime' property to device tree

96a84bb

usb3503: add more register defines

995c90e

usb3503: write to PDS and CFG1 register instead of updating

867d49e

usb3503: set some more bits in the CFG1 register

f66676e

mj22226 pushed a commit to mj22226/linux that referenced this pull request Jul 30, 2023

arm64: dts: cm3s io: Modify the platform compatible field (torvalds#160)

1eb1bc8

Signed-off-by: Feng Zhang <feng@radxa.com>

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mali_drv.h includes drm_sman.h #160

mali_drv.h includes drm_sman.h #160

amegz commented Feb 11, 2015

immibis commented Feb 13, 2015

mali_drv.h includes drm_sman.h #160

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mali_drv.h includes drm_sman.h #160

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amegz commented Feb 11, 2015

immibis commented Feb 13, 2015