- 23 Feb, 2017 40 commits
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Hui Wang authored
commit 392c9da2 upstream. We have two new Dell laptop models, they have the same ALC255 pin definition, but not in the pin quirk table yet, as a result, the headset microphone can't work. After adding the definition in the table, the headset microphone works well. Signed-off-by:
Hui Wang <hui.wang@canonical.com> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
Ben Hutchings <ben@decadent.org.uk>
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Jan Remmet authored
commit 8f9165c9 upstream. http://www.ti.com/lit/pdf/SWCZ010: DCDC o/p voltage can go higher than programmed value Impact: VDDI, VDD2, and VIO output programmed voltage level can go higher than expected or crash, when coming out of PFM to PWM mode or using DVFS. Description: When DCDC CLK SYNC bits are 11/01: * VIO 3-MHz oscillator is the source clock of the digital core and input clock of VDD1 and VDD2 * Turn-on of VDD1 and VDD2 HSD PFETis synchronized or at a constant phase shift * Current pulled though VCC1+VCC2 is Iload(VDD1) + Iload(VDD2) * The 3 HSD PFET will be turned-on at the same time, causing the highest possible switching noise on the application. This noise level depends on the layout, the VBAT level, and the load current. The noise level increases with improper layout. When DCDC CLK SYNC bits are 00: * VIO 3-MHz oscillator is the source clock of digital core * VDD1 and VDD2 are running on their own 3-MHz oscillator * Current pulled though VCC1+VCC2 average of Iload(VDD1) + Iload(VDD2) * The switching noise of the 3 SMPS will be randomly spread over time, causing lower overall switching noise. Workaround: Set DCDCCTRL_REG[1:0]= 00. Signed-off-by:
Jan Remmet <j.remmet@phytec.de> Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Bart Van Assche authored
commit 55679c8d upstream. Avoid that sparse complains about blkg_hint manipulations. Fixes: a637120e ("blkcg: use radix tree to index blkgs from blkcg") Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Acked-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
Jens Axboe <axboe@fb.com> [bwh: Backported to 3.16: adjust filename] Signed-off-by:
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Chuck Lever authored
commit cace564f upstream. The ctxt's count field is overloaded to mean the number of pages in the ctxt->page array and the number of SGEs in the ctxt->sge array. Typically these two numbers are the same. However, when an inline RPC reply is constructed from an xdr_buf with a tail iovec, the head and tail often occupy the same page, but each are DMA mapped independently. In that case, ->count equals the number of pages, but it does not equal the number of SGEs. There's one more SGE, for the tail iovec. Hence there is one more DMA mapping than there are pages in the ctxt->page array. This isn't a real problem until the server's iommu is enabled. Then each RPC reply that has content in that iovec orphans a DMA mapping that consists of real resources. krb5i and krb5p always populate that tail iovec. After a couple million sent krb5i/p RPC replies, the NFS server starts behaving erratically. Reboot is needed to clear the problem. Fixes: 9d11b51c ("svcrdma: Fix send_reply() scatter/gather set-up") Signed-off-by:
Chuck Lever <chuck.lever@oracle.com> Signed-off-by:
J. Bruce Fields <bfields@redhat.com> [bwh: Backported to 3.16: - Adjust context - Drop changes to svc_rdma_bc_sendto() - s/xprt->sc_pd->local_dma_lkey/xprt->sc_dma_lkey/ Signed-off-by:
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Laura Garcia Liebana authored
commit 36b701fa upstream. Fetch value and validate u32 netlink attribute. This validation is usually required when the u32 netlink attributes are being stored in a field whose size is smaller. This patch revisits 4da449ae ("netfilter: nft_exthdr: Add size check on u8 nft_exthdr attributes"). Fixes: 96518518 ("netfilter: add nftables") Suggested-by:
Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by:
Laura Garcia Liebana <nevola@gmail.com> Signed-off-by:
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Laura Garcia Liebana authored
commit 4da449ae upstream. Fix the direct assignment of offset and length attributes included in nft_exthdr structure from u32 data to u8. Signed-off-by:
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Anssi Hannula authored
commit eb1a74b7 upstream. The DragonFly quirk added in 42e3121d ("ALSA: usb-audio: Add a more accurate volume quirk for AudioQuest DragonFly") applies a custom dB map on the volume control when its range is reported as 0..50 (0 .. 0.2dB). However, there exists at least one other variant (hw v1.0c, as opposed to the tested v1.2) which reports a different non-sensical volume range (0..53) and the custom map is therefore not applied for that device. This results in all of the volume change appearing close to 100% on mixer UIs that utilize the dB TLV information. Add a fallback case where no dB TLV is reported at all if the control range is not 0..50 but still 0..N where N <= 1000 (3.9 dB). Also restrict the quirk to only apply to the volume control as there is also a mute control which would match the check otherwise. Fixes: 42e3121d ("ALSA: usb-audio: Add a more accurate volume quirk for AudioQuest DragonFly") Signed-off-by:
Anssi Hannula <anssi.hannula@iki.fi> Reported-by:
David W <regulars@d-dub.org.uk> Tested-by:
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Russell Currey authored
commit 04fec21c upstream. eeh_pe_bus_get() can return NULL if a PCI bus isn't found for a given PE. Some callers don't check this, and can cause a null pointer dereference under certain circumstances. Fix this by checking NULL everywhere eeh_pe_bus_get() is called. Fixes: 8a6b1bc7 ("powerpc/eeh: EEH core to handle special event") Signed-off-by:
Russell Currey <ruscur@russell.cc> Reviewed-by:
Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Signed-off-by:
Jiri Slaby <jslaby@suse.cz> Signed-off-by:
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Alex Deucher authored
commit 884031f0 upstream. Only needed on CIK+ due to the way pci reset is handled by the GPU. Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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Jack Morgenstein authored
commit a7e1f049 upstream. When switching from polling-based fw commands to event-based fw commands, there is a race condition which could cause a fw command in another task to hang: that task will keep waiting for the polling sempahore, but may never be able to acquire it. This is due to mlx4_cmd_use_events, which "down"s the sempahore back to 0. During driver initialization, this is not a problem, since no other tasks which invoke FW commands are active. However, there is a problem if the driver switches to polling mode and then back to event mode during normal operation. The "test_interrupts" feature does exactly that. Running "ethtool -t <eth device> offline" causes the PF driver to temporarily switch to polling mode, and then back to event mode. (Note that for VF drivers, such switching is not performed). Fix this by adding a read-write semaphore for protection when switching between modes. Fixes: 225c7b1f ("IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters") Signed-off-by:
Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by:
Matan Barak <matanb@mellanox.com> Signed-off-by:
Tariq Toukan <tariqt@mellanox.com> Signed-off-by:
David S. Miller <davem@davemloft.net> [bwh: Backported to 3.16: adjust context, indentation] Signed-off-by:
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Kamal Heib authored
commit 57c970c2 upstream. Use tabs instead of spaces before if statement, no functional change. Fixes: e7c1c2c4 ("mlx4_en: Added self diagnostics test implementation") Signed-off-by:
Kamal Heib <kamalh@mellanox.com> Signed-off-by:
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Greg Kroah-Hartman authored
commit 2fae9e5a upstream. This patch fixes a NULL pointer dereference caused by a race codition in the probe function of the legousbtower driver. It re-structures the probe function to only register the interface after successfully reading the board's firmware ID. The probe function does not deregister the usb interface after an error receiving the devices firmware ID. The device file registered (/dev/usb/legousbtower%d) may be read/written globally before the probe function returns. When tower_delete is called in the probe function (after an r/w has been initiated), core dev structures are deleted while the file operation functions are still running. If the 0 address is mappable on the machine, this vulnerability can be used to create a Local Priviege Escalation exploit via a write-what-where condition by remapping dev->interrupt_out_buffer in tower_write. A forged USB device and local program execution would be required for LPE. The USB device would have to delay the control message in tower_probe and accept the control urb in tower_open whilst guest code initiated a write to the device file as tower_delete is called from the error in tower_probe. This bug has existed since 2003. Patch tested by emulated device. Reported-by:
James Patrick-Evans <james@jmp-e.com> Tested-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Takashi Iwai authored
commit db685779 upstream. The pointer callbacks of ali5451 driver may return the value at the boundary occasionally, and it results in the kernel warning like snd_ali5451 0000:00:06.0: BUG: , pos = 16384, buffer size = 16384, period size = 1024 It seems that folding the position offset is enough for fixing the warning and no ill-effect has been seen by that. Reported-by:
Enrico Mioso <mrkiko.rs@gmail.com> Tested-by:
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Pan Xinhui authored
commit 11b7e154 upstream. When we merge two contiguous partitions whose signatures are marked NVRAM_SIG_FREE, We need update prev's length and checksum, then write it to nvram, not cur's. So lets fix this mistake now. Also use memset instead of strncpy to set the partition's name. It's more readable if we want to fill up with duplicate chars . Fixes: fa2b4e54 ("powerpc/nvram: Improve partition removal") Signed-off-by:
Pan Xinhui <xinhui.pan@linux.vnet.ibm.com> Signed-off-by:
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Brian King authored
commit 07d0e9a8 upstream. If a VFC port gets unmapped in the VIOS, it may not respond with a CRQ init complete following H_REG_CRQ. If this occurs, we can end up having called scsi_block_requests and not a resulting unblock until the init complete happens, which may never occur, and we end up hanging I/O requests. This patch ensures the host action stay set to IBMVFC_HOST_ACTION_TGT_DEL so we move all rports into devloss state and unblock unless we receive an init complete. Signed-off-by:
Brian King <brking@linux.vnet.ibm.com> Acked-by:
Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
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Baoquan He authored
commit c3db901c upstream. The current code missed freeing domain id when free a domain of struct dma_ops_domain. Signed-off-by:
Baoquan He <bhe@redhat.com> Fixes: ec487d1a ('x86, AMD IOMMU: add domain allocation and deallocation functions') Signed-off-by:
Joerg Roedel <jroedel@suse.de> Signed-off-by:
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Eric Dumazet authored
commit 695b4ec0 upstream. When fq is used on 32bit kernels, we need to lock the qdisc before copying 64bit fields. Otherwise "tc -s qdisc ..." might report bogus values. Fixes: afe4fd06 ("pkt_sched: fq: Fair Queue packet scheduler") Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Xin Long authored
commit 66388f2c upstream. Once a chunk is enqueued successfully, sctp queues can take care of it. Even if it is failed to transmit (like because of nomem), it should be put into retransmit queue. If sctp report this error to users, it confuses them, they may resend that msg, but actually in kernel sctp stack is in charge of retransmit it already. Besides, this error probably is not from the failure of transmitting current msg, but transmitting or retransmitting another msg's chunks, as sctp_outq_flush just tries to send out all transports' chunks. This patch is to make sctp_cmd_send_msg return avoid, and not return the transmit err back to sctp_sendmsg Fixes: 8b570dc9 ("sctp: only drop the reference on the datamsg after sending a msg") Signed-off-by:
Xin Long <lucien.xin@gmail.com> Signed-off-by:
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Mike Galbraith authored
commit 420902c9 upstream. If we hold the superblock lock while calling reiserfs_quota_on_mount(), we can deadlock our own worker - mount blocks kworker/3:2, sleeps forever more. crash> ps|grep UN 715 2 3 ffff880220734d30 UN 0.0 0 0 [kworker/3:2] 9369 9341 2 ffff88021ffb7560 UN 1.3 493404 123184 Xorg 9665 9664 3 ffff880225b92ab0 UN 0.0 47368 812 udisks-daemon 10635 10403 3 ffff880222f22c70 UN 0.0 14904 936 mount crash> bt ffff880220734d30 PID: 715 TASK: ffff880220734d30 CPU: 3 COMMAND: "kworker/3:2" #0 [ffff8802244c3c20] schedule at ffffffff8144584b #1 [ffff8802244c3cc8] __rt_mutex_slowlock at ffffffff814472b3 #2 [ffff8802244c3d28] rt_mutex_slowlock at ffffffff814473f5 #3 [ffff8802244c3dc8] reiserfs_write_lock at ffffffffa05f28fd [reiserfs] #4 [ffff8802244c3de8] flush_async_commits at ffffffffa05ec91d [reiserfs] #5 [ffff8802244c3e08] process_one_work at ffffffff81073726 #6 [ffff8802244c3e68] worker_thread at ffffffff81073eba #7 [ffff8802244c3ec8] kthread at ffffffff810782e0 #8 [ffff8802244c3f48] kernel_thread_helper at ffffffff81450064 crash> rd ffff8802244c3cc8 10 ffff8802244c3cc8: ffffffff814472b3 ffff880222f23250 .rD.....P2.".... ffff8802244c3cd8: 0000000000000000 0000000000000286 ................ ffff8802244c3ce8: ffff8802244c3d30 ffff880220734d80 0=L$.....Ms .... ffff8802244c3cf8: ffff880222e8f628 0000000000000000 (.."............ ffff8802244c3d08: 0000000000000000 0000000000000002 ................ crash> struct rt_mutex ffff880222e8f628 struct rt_mutex { wait_lock = { raw_lock = { slock = 65537 } }, wait_list = { node_list = { next = 0xffff8802244c3d48, prev = 0xffff8802244c3d48 } }, owner = 0xffff880222f22c71, save_state = 0 } crash> bt 0xffff880222f22c70 PID: 10635 TASK: ffff880222f22c70 CPU: 3 COMMAND: "mount" #0 [ffff8802216a9868] schedule at ffffffff8144584b #1 [ffff8802216a9910] schedule_timeout at ffffffff81446865 #2 [ffff8802216a99a0] wait_for_common at ffffffff81445f74 #3 [ffff8802216a9a30] flush_work at ffffffff810712d3 #4 [ffff8802216a9ab0] schedule_on_each_cpu at ffffffff81074463 #5 [ffff8802216a9ae0] invalidate_bdev at ffffffff81178aba #6 [ffff8802216a9af0] vfs_load_quota_inode at ffffffff811a3632 #7 [ffff8802216a9b50] dquot_quota_on_mount at ffffffff811a375c #8 [ffff8802216a9b80] finish_unfinished at ffffffffa05dd8b0 [reiserfs] #9 [ffff8802216a9cc0] reiserfs_fill_super at ffffffffa05de825 [reiserfs] RIP: 00007f7b9303997a RSP: 00007ffff443c7a8 RFLAGS: 00010202 RAX: 00000000000000a5 RBX: ffffffff8144ef12 RCX: 00007f7b932e9ee0 RDX: 00007f7b93d9a400 RSI: 00007f7b93d9a3e0 RDI: 00007f7b93d9a3c0 RBP: 00007f7b93d9a2c0 R8: 00007f7b93d9a550 R9: 0000000000000001 R10: ffffffffc0ed040e R11: 0000000000000202 R12: 000000000000040e R13: 0000000000000000 R14: 00000000c0ed040e R15: 00007ffff443ca20 ORIG_RAX: 00000000000000a5 CS: 0033 SS: 002b Signed-off-by:
Mike Galbraith <efault@gmx.de> Acked-by:
Frederic Weisbecker <fweisbec@gmail.com> Acked-by:
Mike Galbraith <mgalbraith@suse.de> Signed-off-by:
Jan Kara <jack@suse.cz> Signed-off-by:
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Krzysztof Kozlowski authored
commit f7061ffb upstream. The pinctrl pull up/down register on exynos4210 is 2-bit wide for each pin and it accepts only values of 0, 1 and 3. The pins sd4-bus-width8 were configured with value of 4. The driver does not validate the value so this overflow effectively set a bit 1 in adjacent pins thus configuring them to pull down. The author's intention was probably to set drive strength of 4x. All other bus-widths pins are configured with pull up and drive strength of 4x. Fix this one with same pattern. Fixes: 87711d8c ("ARM: dts: Add pinctrl node entries for SAMSUNG EXYNOS4210 SoC") Signed-off-by:
Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by:
Javier Martinez Canillas <javier@osg.samsung.com> Reviewed-by:
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by:
Linus Walleij <linus.walleij@linaro.org> [bwh: Backported to 3.16: use literal constant] Signed-off-by:
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Al Viro authored
commit 7798bf21 upstream. On faulting sigreturn we do get SIGSEGV, all right, but anything we'd put into pt_regs could end up in the coredump. And since __copy_from_user() never zeroed on arc, we'd better bugger off on its failure without copying random uninitialized bits of kernel stack into pt_regs... Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> [bwh: Backported to 3.16: - Adjust context - Don't change the single return statement] Signed-off-by:
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wangguang authored
commit 4e800c03 upstream. Pages clear buffers after ext4 delayed block allocation failed, However, it does not clean its pte_dirty flag. if the pages unmap ,in cording to the pte_dirty , unmap_page_range may try to call __set_page_dirty, which may lead to the bugon at mpage_prepare_extent_to_map:head = page_buffers(page);. This patch just call clear_page_dirty_for_io to clean pte_dirty at mpage_release_unused_pages for pages mmaped. Steps to reproduce the bug: （1） mmap a file in ext4 addr = (char *)mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); memset(addr, 'i', 4096); （2） return EIO at ext4_writepages->mpage_map_and_submit_extent->mpage_map_one_extent which causes this log message to be print: ext4_msg(sb, KERN_CRIT, "Delayed block allocation failed for " "inode %lu at logical offset %llu with" " max blocks %u with error %d", inode->i_ino, (unsigned long long)map->m_lblk, (unsigned)map->m_len, -err); (3）Unmap the addr cause warning at __set_page_dirty:WARN_ON_ONCE(warn && !PageUptodate(page)); (4) wait for a minute,then bugon happen. Signed-off-by:
wangguang <wangguang03@zte.com> Signed-off-by:
Theodore Ts'o <tytso@mit.edu> [bwh: Backported to 3.16: adjust context] Signed-off-by:
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Mike Snitzer authored
commit f10e06b7 upstream. If pg_init_retries is set and a request is queued against a multipath device with all underlying block device request_queues in the "dying" state then an infinite loop is triggered because activate_path() never succeeds and hence never calls pg_init_done(). This change avoids that device removal triggers an infinite loop by failing the activate_path() which causes the "dying" path to be failed. Reported-by:
Mike Snitzer <snitzer@redhat.com> Signed-off-by:
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Bart Van Assche authored
commit 3b785fbc upstream. This avoids that new requests are queued while __dm_destroy() is in progress. Signed-off-by:
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Dave Chinner authored
commit 541d48f0 upstream. oss.sgi.com is going away, move contact details over to vger. Signed-off-by:
Dave Chinner <david@fromorbit.com> [bwh: Backported to 3.16: Also update the git URL, done upstream in commit 9f273c24 "MAINTAINERS: add/fix git URLs for various subsystems"] Signed-off-by:
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Chen-Yu Tsai authored
commit 919ab252 upstream. The musb driver calls into this phy driver to disable/enable squelch detection. This function was introduced in 24fe86a6 ("phy: sun4i-usb: Add a sunxi specific function for setting squelch-detect"). This function in turn calls sun4i_usb_phy_write, which uses a mutex to guard the common access register. Unfortunately musb does this in atomic context, which results in the following warning with lock debugging enabled: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:97 in_atomic(): 1, irqs_disabled(): 128, pid: 96, name: kworker/0:2 CPU: 0 PID: 96 Comm: kworker/0:2 Not tainted 4.8.0-rc4-00181-gd502f8ad1c3e #13 Hardware name: Allwinner sun8i Family Workqueue: events musb_deassert_reset [<c010bc01>] (unwind_backtrace) from [<c0109237>] (show_stack+0xb/0xc) [<c0109237>] (show_stack) from [<c02a669b>] (dump_stack+0x67/0x74) [<c02a669b>] (dump_stack) from [<c05d68c9>] (mutex_lock+0x15/0x2c) [<c05d68c9>] (mutex_lock) from [<c02c3589>] (sun4i_usb_phy_write+0x39/0xec) [<c02c3589>] (sun4i_usb_phy_write) from [<c03e6327>] (musb_port_reset+0xfb/0x184) [<c03e6327>] (musb_port_reset) from [<c03e4917>] (musb_deassert_reset+0x1f/0x2c) [<c03e4917>] (musb_deassert_reset) from [<c012ecb5>] (process_one_work+0x129/0x2b8) [<c012ecb5>] (process_one_work) from [<c012f5e3>] (worker_thread+0xf3/0x424) [<c012f5e3>] (worker_thread) from [<c0132dbd>] (kthread+0xa1/0xb8) [<c0132dbd>] (kthread) from [<c0105f31>] (ret_from_fork+0x11/0x20) Since the register access is mmio, we can use a spinlock to guard this specific access, rather than the mutex that guards the entire phy. Fixes: ba4bdc9e ("PHY: sunxi: Add driver for sunxi usb phy") Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by:
Chen-Yu Tsai <wens@csie.org> Reviewed-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by:
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Robert Jarzmik authored
commit ca26475b upstream. The commit 9bf448c6 ("ARM: pxa: use generic gpio operation instead of gpio register") from Oct 17, 2011, leads to the following static checker warning: arch/arm/mach-pxa/spitz_pm.c:172 spitz_charger_wakeup() warn: double left shift '!gpio_get_value(SPITZ_GPIO_KEY_INT) << (1 << ((SPITZ_GPIO_KEY_INT) & 31))' As Dan reported, the value is shifted three times : - once by gpio_get_value(), which returns either 0 or BIT(gpio) - once by the shift operation '<<' - a last time by GPIO_bit(gpio) which is BIT(gpio) Therefore the calculation lead to a chained or operator of : - (1 << gpio) << (1 << gpio) = (2^gpio)^gpio = 2 ^ (gpio * gpio) It is be sheer luck the former statement works, only because each gpio used is strictly smaller than 6, and therefore 2^(gpio^2) never overflows a 32 bits value, and because it is used as a boolean value to check a gpio activation. As the xxx_charger_wakeup() functions are used as a true/false detection mechanism, take that opportunity to change their prototypes from integer return value to boolean one. Fixes: 9bf448c6 ("ARM: pxa: use generic gpio operation instead of gpio register") Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Cc: Joe Perches <joe@perches.com> Signed-off-by:
Robert Jarzmik <robert.jarzmik@free.fr> [bwh: Backported to 3.16: adjust filename] Signed-off-by:
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Eric Dumazet authored
commit e895cdce upstream. In commit f02db315 ("ipv4: IP_TOS and IP_TTL can be specified as ancillary data") Francesco added IP_TOS values specified as integer. However, kernel sends to userspace (at recvmsg() time) an IP_TOS value in a single byte, when IP_RECVTOS is set on the socket. It can be very useful to reflect all ancillary options as given by the kernel in a subsequent sendmsg(), instead of aborting the sendmsg() with EINVAL after Francesco patch. So this patch extends IP_TOS ancillary to accept an u8, so that an UDP server can simply reuse same ancillary block without having to mangle it. Jesper can then augment https://github.com/netoptimizer/network-testing/blob/master/src/udp_example02.c to add TOS reflection ;) Fixes: f02db315 ("ipv4: IP_TOS and IP_TTL can be specified as ancillary data") Signed-off-by:
Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by:
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Andrew Bresticker authored
commit d771fdf9 upstream. The ramoops buffer may be mapped as either I/O memory or uncached memory. On ARM64, this results in a device-type (strongly-ordered) mapping. Since unnaligned accesses to device-type memory will generate an alignment fault (regardless of whether or not strict alignment checking is enabled), it is not safe to use memcpy(). memcpy_fromio() is guaranteed to only use aligned accesses, so use that instead. Signed-off-by:
Andrew Bresticker <abrestic@chromium.org> Signed-off-by:
Enric Balletbo Serra <enric.balletbo@collabora.com> Reviewed-by:
Puneet Kumar <puneetster@chromium.org> Signed-off-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
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Furquan Shaikh authored
commit 7e75678d upstream. persistent_ram_update uses vmap / iomap based on whether the buffer is in memory region or reserved region. However, both map it as non-cacheable memory. For armv8 specifically, non-cacheable mapping requests use a memory type that has to be accessed aligned to the request size. memcpy() doesn't guarantee that. Signed-off-by:
Furquan Shaikh <furquan@google.com> Signed-off-by:
Aaron Durbin <adurbin@chromium.org> Reviewed-by:
Olof Johansson <olofj@chromium.org> Tested-by:
Furquan Shaikh <furquan@chromium.org> Signed-off-by:
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Sebastian Andrzej Siewior authored
commit d5a9bf0b upstream. I have here a FPGA behind PCIe which exports SRAM which I use for pstore. Now it seems that the FPGA no longer supports cmpxchg based updates and writes back 0xff…ff and returns the same. This leads to crash during crash rendering pstore useless. Since I doubt that there is much benefit from using cmpxchg() here, I am dropping this atomic access and use the spinlock based version. Cc: Anton Vorontsov <anton@enomsg.org> Cc: Colin Cross <ccross@android.com> Cc: Kees Cook <keescook@chromium.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Rabin Vincent <rabinv@axis.com> Tested-by:
Rabin Vincent <rabinv@axis.com> Signed-off-by:
Sebastian Andrzej Siewior <bigeasy@linutronix.de> Reviewed-by:
Guenter Roeck <linux@roeck-us.net> [kees: remove "_locked" suffix since it's the only option now] Signed-off-by:
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Daeho Jeong authored
commit 93e3b4e6 upstream. Now, ext4_do_update_inode() clears high 16-bit fields of uid/gid of deleted and evicted inode to fix up interoperability with old kernels. However, it checks only i_dtime of an inode to determine whether the inode was deleted and evicted, and this is very risky, because i_dtime can be used for the pointer maintaining orphan inode list, too. We need to further check whether the i_dtime is being used for the orphan inode list even if the i_dtime is not NULL. We found that high 16-bit fields of uid/gid of inode are unintentionally and permanently cleared when the inode truncation is just triggered, but not finished, and the inode metadata, whose high uid/gid bits are cleared, is written on disk, and the sudden power-off follows that in order. Signed-off-by:
Daeho Jeong <daeho.jeong@samsung.com> Signed-off-by:
Hobin Woo <hobin.woo@samsung.com> Signed-off-by:
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Mauro Carvalho Chehab authored
commit 24b923f0 upstream. This device uses GPIOs: 28 to switch between analog and digital modes: on digital mode, it should be set to 1. The code that sets it on analog mode is OK, but it misses the logic that sets it on digital mode. Signed-off-by:
Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by:
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Mauro Carvalho Chehab authored
commit 1871d718 upstream. The cx231xx_set_agc_analog_digital_mux_select() callers expect it to return 0 or an error. Returning a positive value makes the first attempt to switch between analog/digital to fail. Signed-off-by:
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Mauro Carvalho Chehab authored
commit 505a0ea7 upstream. With the current settings, only one channel locks properly. That's likely because, when this driver was written, Brazil were still using experimental transmissions. Change it to reproduce the settings used by the newer drivers. That makes it lock on other channels. Tested with both PixelView SBTVD Hybrid (cx231xx-based) and C3Tech Digital Duo HDTV/SDTV (em28xx-based) devices. Signed-off-by:
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Mauro Carvalho Chehab authored
commit dafb65fb upstream. On this frontend, it takes a while to start output normal TS data. That only happens on state S9. On S8, the TS output is enabled, but it is not reliable enough. However, the zigzag loop is too fast to let it sync. As, on practical tests, the zigzag software loop doesn't seem to be helping, but just slowing down the tuning, let's switch to hardware algorithm, as the tuners used on such devices are capable of work with frequency drifts without any help from software. Signed-off-by:
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David Hsu authored
commit 0733424c upstream. Exported pwm channels aren't removed before the pwmchip and are leaked. This results in invalid sysfs files. This fix removes all exported pwm channels before chip removal. Signed-off-by:
David Hsu <davidhsu@google.com> Fixes: 76abbdde ("pwm: Add sysfs interface") Signed-off-by:
Thierry Reding <thierry.reding@gmail.com> Signed-off-by:
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Larry Finger authored
commit 0c9d3491 upstream. Some RTL8821AE devices sold in Great Britain have the country code of 0x25 encoded in their EEPROM. This value is not tested in the routine that establishes the regulatory info for the chip. The fix is to set this code to have the same capabilities as the EU countries. In addition, the channels allowed for COUNTRY_CODE_ETSI were more properly suited for China and Israel, not the EU. This problem has also been fixed. Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> [bwh: Backported to 3.16: adjust filename] Signed-off-by:
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Shao Fu authored
commit 02b5fffb upstream. Driver rtlwifi maintains its own regulatory information, The Chrome Autotest (https://www.chromium.org/chromium-os/testing/autotest-user-doc) showed some errors. This patch adds the necessary information for rtlwifi. Signed-off-by:
Shao Fu <shaofu@realtek.com> Signed-off-by:
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Sebastian Frias authored
commit ee26c013 upstream. Without this patch irq_domain_disassociate() cannot properly release the interrupt. In fact, irq_map_generic_chip() checks a bit on 'gc->installed' but said bit is never cleared, only set. Commit 088f40b7 ("genirq: Generic chip: Add linear irq domain support") added irq_map_generic_chip() function and also stated "This lacks a removal function for now". This commit provides an implementation of an unmap function that can be called by irq_domain_disassociate(). [ tglx: Made the function static and removed the export as we have neither a prototype nor a modular user. ] Fixes: 088f40b7 ("genirq: Generic chip: Add linear irq domain support") Signed-off-by:
Sebastian Frias <sf84@laposte.net> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Mason <slash.tmp@free.fr> Cc: Jason Cooper <jason@lakedaemon.net> Link: http://lkml.kernel.org/r/579F5C5A.2070507@laposte.netSigned-off-by:
Thomas Gleixner <tglx@linutronix.de> [bwh: Backported to 3.16: open-code irq_domain_get_irq_data(), irq_domain_set_info()] Signed-off-by:
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