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2019-12-31net: dsa: sja1105: Take PTP egress timestamp by port, not mgmt slotVladimir Oltean2-3/+3
The PTP egress timestamp N must be captured from register PTPEGR_TS[n], where n = 2 * PORT + TSREG. There are 10 PTPEGR_TS registers, 2 per port. We are only using TSREG=0. As opposed to the management slots, which are 4 in number (SJA1105_NUM_PORTS, minus the CPU port). Any management frame (which includes PTP frames) can be sent to any non-CPU port through any management slot. When the CPU port is not the last port (#4), there will be a mismatch between the slot and the port number. Luckily, the only mainline occurrence with this switch (arch/arm/boot/dts/ls1021a-tsn.dts) does have the CPU port as #4, so the issue did not manifest itself thus far. Fixes: 47ed985e97f5 ("net: dsa: sja1105: Add logic for TX timestamping") Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-31cxgb4/cxgb4vf: fix flow control display for auto negotiationRahul Lakkireddy6-19/+30
As per 802.3-2005, Section Two, Annex 28B, Table 28B-2 [1], when _only_ Rx pause is enabled, both symmetric and asymmetric pause towards local device must be enabled. Also, firmware returns the local device's flow control pause params as part of advertised capabilities and negotiated params as part of current link attributes. So, fix up ethtool's flow control pause params fetch logic to read from acaps, instead of linkattr. [1] https://standards.ieee.org/standard/802_3-2005.html Fixes: c3168cabe1af ("cxgb4/cxgbvf: Handle 32-bit fw port capabilities") Signed-off-by: Surendra Mobiya <surendra@chelsio.com> Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-30kernel.h: Remove unused FIELD_SIZEOF()Kees Cook1-9/+0
Now that all callers of FIELD_SIZEOF() have been converted to sizeof_field(), remove the unused prior macro. Signed-off-by: Kees Cook <keescook@chromium.org>
2019-12-30null_blk: Fix REQ_OP_ZONE_CLOSE handlingDamien Le Moal1-1/+4
In order to match ZBC defined behavior, closing an empty zone must result in the "empty" zone condition instead of the "closed" condition. Fixes: da644b2cc1a4 ("null_blk: add zone open, close, and finish support") Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-30block: fix splitting segments on boundary masksMing Lei1-9/+9
We ran into a problem with a mpt3sas based controller, where we would see random (and hard to reproduce) file corruption). The issue seemed specific to this controller, but wasn't specific to the file system. After a lot of debugging, we find out that it's caused by segments spanning a 4G memory boundary. This shouldn't happen, as the default setting for segment boundary masks is 4G. Turns out there are two issues in get_max_segment_size(): 1) The default segment boundary mask is bypassed 2) The segment start address isn't taken into account when checking segment boundary limit Fix these two issues by removing the bypass of the segment boundary check even if the mask is set to the default value, and taking into account the actual start address of the request when checking if a segment needs splitting. Cc: stable@vger.kernel.org # v5.1+ Reviewed-by: Chris Mason <clm@fb.com> Tested-by: Chris Mason <clm@fb.com> Fixes: dcebd755926b ("block: use bio_for_each_bvec() to compute multi-page bvec count") Signed-off-by: Ming Lei <ming.lei@redhat.com> Dropped const on the page pointer, ppc page_to_phys() doesn't mark the page as const... Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-30Btrfs: fix infinite loop during nocow writeback due to raceFilipe Manana1-3/+3
When starting writeback for a range that covers part of a preallocated extent, due to a race with writeback for another range that also covers another part of the same preallocated extent, we can end up in an infinite loop. Consider the following example where for inode 280 we have two dirty ranges: range A, from 294912 to 303103, 8192 bytes range B, from 348160 to 438271, 90112 bytes and we have the following file extent item layout for our inode: leaf 38895616 gen 24544 total ptrs 29 free space 13820 owner 5 (...) item 27 key (280 108 200704) itemoff 14598 itemsize 53 extent data disk bytenr 0 nr 0 type 1 (regular) extent data offset 0 nr 94208 ram 94208 item 28 key (280 108 294912) itemoff 14545 itemsize 53 extent data disk bytenr 10433052672 nr 81920 type 2 (prealloc) extent data offset 0 nr 81920 ram 81920 Then the following happens: 1) Writeback starts for range B (from 348160 to 438271), execution of run_delalloc_nocow() starts; 2) The first iteration of run_delalloc_nocow()'s whil loop leaves us at the extent item at slot 28, pointing to the prealloc extent item covering the range from 294912 to 376831. This extent covers part of our range; 3) An ordered extent is created against that extent, covering the file range from 348160 to 376831 (28672 bytes); 4) We adjust 'cur_offset' to 376832 and move on to the next iteration of the while loop; 5) The call to btrfs_lookup_file_extent() leaves us at the same leaf, pointing to slot 29, 1 slot after the last item (the extent item we processed in the previous iteration); 6) Because we are a slot beyond the last item, we call btrfs_next_leaf(), which releases the search path before doing a another search for the last key of the leaf (280 108 294912); 7) Right after btrfs_next_leaf() released the path, and before it did another search for the last key of the leaf, writeback for the range A (from 294912 to 303103) completes (it was previously started at some point); 8) Upon completion of the ordered extent for range A, the prealloc extent we previously found got split into two extent items, one covering the range from 294912 to 303103 (8192 bytes), with a type of regular extent (and no longer prealloc) and another covering the range from 303104 to 376831 (73728 bytes), with a type of prealloc and an offset of 8192 bytes. So our leaf now has the following layout: leaf 38895616 gen 24544 total ptrs 31 free space 13664 owner 5 (...) item 27 key (280 108 200704) itemoff 14598 itemsize 53 extent data disk bytenr 0 nr 0 type 1 extent data offset 0 nr 8192 ram 94208 item 28 key (280 108 208896) itemoff 14545 itemsize 53 extent data disk bytenr 10433142784 nr 86016 type 1 extent data offset 0 nr 86016 ram 86016 item 29 key (280 108 294912) itemoff 14492 itemsize 53 extent data disk bytenr 10433052672 nr 81920 type 1 extent data offset 0 nr 8192 ram 81920 item 30 key (280 108 303104) itemoff 14439 itemsize 53 extent data disk bytenr 10433052672 nr 81920 type 2 extent data offset 8192 nr 73728 ram 81920 9) After btrfs_next_leaf() returns, we have our path pointing to that same leaf and at slot 30, since it has a key we didn't have before and it's the first key greater then the key that was previously the last key of the leaf (key (280 108 294912)); 10) The extent item at slot 30 covers the range from 303104 to 376831 which is in our target range, so we process it, despite having already created an ordered extent against this extent for the file range from 348160 to 376831. This is because we skip to the next extent item only if its end is less than or equals to the start of our delalloc range, and not less than or equals to the current offset ('cur_offset'); 11) As a result we compute 'num_bytes' as: num_bytes = min(end + 1, extent_end) - cur_offset; = min(438271 + 1, 376832) - 376832 = 0 12) We then call create_io_em() for a 0 bytes range starting at offset 376832; 13) Then create_io_em() enters an infinite loop because its calls to btrfs_drop_extent_cache() do nothing due to the 0 length range passed to it. So no existing extent maps that cover the offset 376832 get removed, and therefore calls to add_extent_mapping() return -EEXIST, resulting in an infinite loop. This loop from create_io_em() is the following: do { btrfs_drop_extent_cache(BTRFS_I(inode), em->start, em->start + em->len - 1, 0); write_lock(&em_tree->lock); ret = add_extent_mapping(em_tree, em, 1); write_unlock(&em_tree->lock); /* * The caller has taken lock_extent(), who could race with us * to add em? */ } while (ret == -EEXIST); Also, each call to btrfs_drop_extent_cache() triggers a warning because the start offset passed to it (376832) is smaller then the end offset (376832 - 1) passed to it by -1, due to the 0 length: [258532.052621] ------------[ cut here ]------------ [258532.052643] WARNING: CPU: 0 PID: 9987 at fs/btrfs/file.c:602 btrfs_drop_extent_cache+0x3f4/0x590 [btrfs] (...) [258532.052672] CPU: 0 PID: 9987 Comm: fsx Tainted: G W 5.4.0-rc7-btrfs-next-64 #1 [258532.052673] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org 04/01/2014 [258532.052691] RIP: 0010:btrfs_drop_extent_cache+0x3f4/0x590 [btrfs] (...) [258532.052695] RSP: 0018:ffffb4be0153f860 EFLAGS: 00010287 [258532.052700] RAX: ffff975b445ee360 RBX: ffff975b44eb3e08 RCX: 0000000000000000 [258532.052700] RDX: 0000000000038fff RSI: 0000000000039000 RDI: ffff975b445ee308 [258532.052700] RBP: 0000000000038fff R08: 0000000000000000 R09: 0000000000000001 [258532.052701] R10: ffff975b513c5c10 R11: 00000000e3c0cfa9 R12: 0000000000039000 [258532.052703] R13: ffff975b445ee360 R14: 00000000ffffffef R15: ffff975b445ee308 [258532.052705] FS: 00007f86a821de80(0000) GS:ffff975b76a00000(0000) knlGS:0000000000000000 [258532.052707] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [258532.052708] CR2: 00007fdacf0f3ab4 CR3: 00000001f9d26002 CR4: 00000000003606f0 [258532.052712] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [258532.052717] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [258532.052717] Call Trace: [258532.052718] ? preempt_schedule_common+0x32/0x70 [258532.052722] ? ___preempt_schedule+0x16/0x20 [258532.052741] create_io_em+0xff/0x180 [btrfs] [258532.052767] run_delalloc_nocow+0x942/0xb10 [btrfs] [258532.052791] btrfs_run_delalloc_range+0x30b/0x520 [btrfs] [258532.052812] ? find_lock_delalloc_range+0x221/0x250 [btrfs] [258532.052834] writepage_delalloc+0xe4/0x140 [btrfs] [258532.052855] __extent_writepage+0x110/0x4e0 [btrfs] [258532.052876] extent_write_cache_pages+0x21c/0x480 [btrfs] [258532.052906] extent_writepages+0x52/0xb0 [btrfs] [258532.052911] do_writepages+0x23/0x80 [258532.052915] __filemap_fdatawrite_range+0xd2/0x110 [258532.052938] btrfs_fdatawrite_range+0x1b/0x50 [btrfs] [258532.052954] start_ordered_ops+0x57/0xa0 [btrfs] [258532.052973] ? btrfs_sync_file+0x225/0x490 [btrfs] [258532.052988] btrfs_sync_file+0x225/0x490 [btrfs] [258532.052997] __x64_sys_msync+0x199/0x200 [258532.053004] do_syscall_64+0x5c/0x250 [258532.053007] entry_SYSCALL_64_after_hwframe+0x49/0xbe [258532.053010] RIP: 0033:0x7f86a7dfd760 (...) [258532.053014] RSP: 002b:00007ffd99af0368 EFLAGS: 00000246 ORIG_RAX: 000000000000001a [258532.053016] RAX: ffffffffffffffda RBX: 0000000000000ec9 RCX: 00007f86a7dfd760 [258532.053017] RDX: 0000000000000004 RSI: 000000000000836c RDI: 00007f86a8221000 [258532.053019] RBP: 0000000000021ec9 R08: 0000000000000003 R09: 00007f86a812037c [258532.053020] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000000074a3 [258532.053021] R13: 00007f86a8221000 R14: 000000000000836c R15: 0000000000000001 [258532.053032] irq event stamp: 1653450494 [258532.053035] hardirqs last enabled at (1653450493): [<ffffffff9dec69f9>] _raw_spin_unlock_irq+0x29/0x50 [258532.053037] hardirqs last disabled at (1653450494): [<ffffffff9d4048ea>] trace_hardirqs_off_thunk+0x1a/0x20 [258532.053039] softirqs last enabled at (1653449852): [<ffffffff9e200466>] __do_softirq+0x466/0x6bd [258532.053042] softirqs last disabled at (1653449845): [<ffffffff9d4c8a0c>] irq_exit+0xec/0x120 [258532.053043] ---[ end trace 8476fce13d9ce20a ]--- Which results in flooding dmesg/syslog since btrfs_drop_extent_cache() uses WARN_ON() and not WARN_ON_ONCE(). So fix this issue by changing run_delalloc_nocow()'s loop to move to the next extent item when the current extent item ends at at offset less than or equals to the current offset instead of the start offset. Fixes: 80ff385665b7fc ("Btrfs: update nodatacow code v2") CC: stable@vger.kernel.org # 4.4+ Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-12-30btrfs: fix compressed write bio blkcg attributionDennis Zhou1-4/+5
Bio attribution is handled at bio_set_dev() as once we have a device, we have a corresponding request_queue and then can derive the current css. In special cases, we want to attribute to bio to someone else. This can be done by calling bio_associate_blkg_from_css() or kthread_associate_blkcg() depending on the scenario. Btrfs does this for compressed writeback as they are handled by kworkers, so the latter can be done here. Commit 1a41802701ec ("btrfs: drop bio_set_dev where not needed") removes early bio_set_dev() calls prior to submit_stripe_bio(). This breaks the above assumption that we'll have a request_queue when we are doing association. To fix this, switch to using kthread_associate_blkcg(). Without this, we crash in btrfs/024: [ 3052.093088] BUG: kernel NULL pointer dereference, address: 0000000000000510 [ 3052.107013] #PF: supervisor read access in kernel mode [ 3052.107014] #PF: error_code(0x0000) - not-present page [ 3052.107015] PGD 0 P4D 0 [ 3052.107021] Oops: 0000 [#1] SMP [ 3052.138904] CPU: 42 PID: 201270 Comm: kworker/u161:0 Kdump: loaded Not tainted 5.5.0-rc1-00062-g4852d8ac90a9 #712 [ 3052.138905] Hardware name: Quanta Tioga Pass Single Side 01-0032211004/Tioga Pass Single Side, BIOS F08_3A18 12/20/2018 [ 3052.138912] Workqueue: btrfs-delalloc btrfs_work_helper [ 3052.191375] RIP: 0010:bio_associate_blkg_from_css+0x1e/0x3c0 [ 3052.191379] RSP: 0018:ffffc900210cfc90 EFLAGS: 00010282 [ 3052.191380] RAX: 0000000000000000 RBX: ffff88bfe5573c00 RCX: 0000000000000000 [ 3052.191382] RDX: ffff889db48ec2f0 RSI: ffff88bfe5573c00 RDI: ffff889db48ec2f0 [ 3052.191386] RBP: 0000000000000800 R08: 0000000000203bb0 R09: ffff889db16b2400 [ 3052.293364] R10: 0000000000000000 R11: ffff88a07fffde80 R12: ffff889db48ec2f0 [ 3052.293365] R13: 0000000000001000 R14: ffff889de82bc000 R15: ffff889e2b7bdcc8 [ 3052.293367] FS: 0000000000000000(0000) GS:ffff889ffba00000(0000) knlGS:0000000000000000 [ 3052.293368] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3052.293369] CR2: 0000000000000510 CR3: 0000000002611001 CR4: 00000000007606e0 [ 3052.293370] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3052.293371] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3052.293372] PKRU: 55555554 [ 3052.293376] Call Trace: [ 3052.402552] btrfs_submit_compressed_write+0x137/0x390 [ 3052.402558] submit_compressed_extents+0x40f/0x4c0 [ 3052.422401] btrfs_work_helper+0x246/0x5a0 [ 3052.422408] process_one_work+0x200/0x570 [ 3052.438601] ? process_one_work+0x180/0x570 [ 3052.438605] worker_thread+0x4c/0x3e0 [ 3052.438614] kthread+0x103/0x140 [ 3052.460735] ? process_one_work+0x570/0x570 [ 3052.460737] ? kthread_mod_delayed_work+0xc0/0xc0 [ 3052.460744] ret_from_fork+0x24/0x30 Fixes: 1a41802701ec ("btrfs: drop bio_set_dev where not needed") Reported-by: Chris Murphy <chris@colorremedies.com> Signed-off-by: Dennis Zhou <dennis@kernel.org> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-12-30btrfs: punt all bios created in btrfs_submit_compressed_write()Dennis Zhou1-0/+4
Compressed writes happen in the background via kworkers. However, this causes bios to be attributed to root bypassing any cgroup limits from the actual writer. We tag the first bio with REQ_CGROUP_PUNT, which will punt the bio to an appropriate cgroup specific workqueue and attribute the IO properly. However, if btrfs_submit_compressed_write() creates a new bio, we don't tag it the same way. Add the appropriate tagging for subsequent bios. Fixes: ec39f7696ccfa ("Btrfs: use REQ_CGROUP_PUNT for worker thread submitted bios") Reviewed-by: Chris Mason <clm@fb.com> Signed-off-by: Dennis Zhou <dennis@kernel.org> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-12-30powerpc/spinlocks: Include correct header for static keyJason A. Donenfeld1-0/+1
Recently, the spinlock implementation grew a static key optimization, but the jump_label.h header include was left out, leading to build errors: linux/arch/powerpc/include/asm/spinlock.h:44:7: error: implicit declaration of function ‘static_branch_unlikely’ 44 | if (!static_branch_unlikely(&shared_processor)) This commit adds the missing header. mpe: The build break is only seen with CONFIG_JUMP_LABEL=n. Fixes: 656c21d6af5d ("powerpc/shared: Use static key to detect shared processor") Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Srikar Dronamraju <srikar@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20191223133147.129983-1-Jason@zx2c4.com
2019-12-30ALSA: hda/realtek - Enable the bass speaker of ASUS UX431FLCChris Chiu1-20/+18
ASUS reported that there's an bass speaker in addition to internal speaker and it uses DAC 0x02. It was not enabled in the commit 436e25505f34 ("ALSA: hda/realtek - Enable internal speaker of ASUS UX431FLC") which only enables the amplifier and the front speaker. This commit enables the bass speaker on top of the aforementioned work to improve the acoustic experience. Fixes: 436e25505f34 ("ALSA: hda/realtek - Enable internal speaker of ASUS UX431FLC") Signed-off-by: Chris Chiu <chiu@endlessm.com> Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20191230031118.95076-1-chiu@endlessm.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-30Linux 5.5-rc4Linus Torvalds1-1/+1
2019-12-29Merge branch 'mlxsw-fixes'David S. Miller3-2/+11
Ido Schimmel says: ==================== mlxsw: Couple of fixes This patch set contains two fixes for mlxsw. Please consider both for stable. Patch #1 from Amit fixes a wrong check during MAC validation when creating router interfaces (RIFs). Given a particular order of configuration this can result in the driver refusing to create new RIFs. Patch #2 fixes a wrong trap configuration in which VRRP packets and routing exceptions were policed by the same policer towards the CPU. In certain situations this can prevent VRRP packets from reaching the CPU. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-29mlxsw: spectrum: Use dedicated policer for VRRP packetsIdo Schimmel2-2/+8
Currently, VRRP packets and packets that hit exceptions during routing (e.g., MTU error) are policed using the same policer towards the CPU. This means, for example, that misconfiguration of the MTU on a routed interface can prevent VRRP packets from reaching the CPU, which in turn can cause the VRRP daemon to assume it is the Master router. Fix this by using a dedicated policer for VRRP packets. Fixes: 11566d34f895 ("mlxsw: spectrum: Add VRRP traps") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reported-by: Alex Veber <alexve@mellanox.com> Tested-by: Alex Veber <alexve@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-29mlxsw: spectrum_router: Skip loopback RIFs during MAC validationAmit Cohen1-0/+3
When a router interface (RIF) is created the MAC address of the backing netdev is verified to have the same MSBs as existing RIFs. This is required in order to avoid changing existing RIF MAC addresses that all share the same MSBs. Loopback RIFs are special in this regard as they do not have a MAC address, given they are only used to loop packets from the overlay to the underlay. Without this change, an error is returned when trying to create a RIF after the creation of a GRE tunnel that is represented by a loopback RIF. 'rif->dev->dev_addr' points to the GRE device's local IP, which does not share the same MSBs as physical interfaces. Adding an IP address to any physical interface results in: Error: mlxsw_spectrum: All router interface MAC addresses must have the same prefix. Fix this by skipping loopback RIFs during MAC validation. Fixes: 74bc99397438 ("mlxsw: spectrum_router: Veto unsupported RIF MAC addresses") Signed-off-by: Amit Cohen <amitc@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-29Merge tag 'riscv/for-v5.5-rc4' of ↵Linus Torvalds4-3/+6
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Paul Walmsley: "One important fix for RISC-V: - Redirect any incoming syscall with an ID less than -1 to sys_ni_syscall, rather than allowing them to fall through into the syscall handler. and two minor build fixes: - Export __asm_copy_{from,to}_user() from where they are defined. This fixes a build error triggered by some randconfigs. - Export flush_icache_all(). I'd resisted this before, since historically we didn't want modules to be able to flush the I$ directly; but apparently everyone else is doing it now" * tag 'riscv/for-v5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: export flush_icache_all to modules riscv: reject invalid syscalls below -1 riscv: fix compile failure with EXPORT_SYMBOL() & !MMU
2019-12-29Merge tag 'locks-v5.5-1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux Pull /proc/locks formatting fix from Jeff Layton: "This is a trivial fix for a _very_ long standing bug in /proc/locks formatting. Ordinarily, I'd wait for the merge window for something like this, but it is making it difficult to validate some overlayfs fixes. I've also gone ahead and marked this for stable" * tag 'locks-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux: locks: print unsigned ino in /proc/locks
2019-12-29Merge tag '5.5-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds3-10/+56
Pull cifs fixes from Steve French: "One performance fix for large directory searches, and one minor style cleanup noticed by Clang" * tag '5.5-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: Optimize readdir on reparse points cifs: Adjust indentation in smb2_open_file
2019-12-29locks: print unsigned ino in /proc/locksAmir Goldstein1-1/+1
An ino is unsigned, so display it as such in /proc/locks. Cc: stable@vger.kernel.org Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Jeff Layton <jlayton@kernel.org>
2019-12-29ALSA: ice1724: Fix sleep-in-atomic in Infrasonic Quartet support codeTakashi Iwai1-3/+6
Jia-Ju Bai reported a possible sleep-in-atomic scenario in the ice1724 driver with Infrasonic Quartet support code: namely, ice->set_rate callback gets called inside ice->reg_lock spinlock, while the callback in quartet.c holds ice->gpio_mutex. This patch fixes the invalid call: it simply moves the calls of ice->set_rate and ice->set_mclk callbacks outside the spinlock. Reported-by: Jia-Ju Bai <baijiaju1990@gmail.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/5d43135e-73b9-a46a-2155-9e91d0dcdf83@gmail.com Link: https://lore.kernel.org/r/20191218192606.12866-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-29drm/amdgpu: enable gfxoff for raven1 refreshchangzhu1-11/+4
When smu version is larger than 0x41e2b, it will load raven_kicker_rlc.bin.To enable gfxoff for raven_kicker_rlc.bin,it needs to avoid adev->pm.pp_feature &= ~PP_GFXOFF_MASK when it loads raven_kicker_rlc.bin. Signed-off-by: changzhu <Changfeng.Zhu@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-29drm/amdgpu/smu: add metrics table lock for vega20 (v2)Alex Deucher1-0/+3
To protect access to the metrics table. v2: unlock on error Bug: https://gitlab.freedesktop.org/drm/amd/issues/900 Reviewed-by: Kevin Wang <kevin1.wang@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2019-12-29drm/amdgpu/smu: add metrics table lock for navi (v2)Alex Deucher1-0/+3
To protect access to the metrics table. v2: unlock on error Bug: https://gitlab.freedesktop.org/drm/amd/issues/900 Reviewed-by: Kevin Wang <kevin1.wang@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2019-12-29drm/amdgpu/smu: add metrics table lock for arcturus (v2)Alex Deucher1-0/+3
To protect access to the metrics table. v2: unlock on error Bug: https://gitlab.freedesktop.org/drm/amd/issues/900 Reviewed-by: Kevin Wang <kevin1.wang@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2019-12-29drm/amdgpu/smu: add metrics table lockAlex Deucher2-0/+2
This table is used for lots of things, add it's own lock. Bug: https://gitlab.freedesktop.org/drm/amd/issues/900 Reviewed-by: Kevin Wang <kevin1.wang@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2019-12-29Revert "drm/amdgpu: simplify ATPX detection"Alex Deucher1-1/+11
This reverts commit f5fda6d89afe6e9cedaa1c3303903c905262f6e8. You can't use BASE_CLASS in pci_get_class. Bug: https://gitlab.freedesktop.org/drm/amd/issues/995 Acked-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-28block: add bio_truncate to fix guard_bio_eodMing Lei3-24/+41
Some filesystem, such as vfat, may send bio which crosses device boundary, and the worse thing is that the IO request starting within device boundaries can contain more than one segment past EOD. Commit dce30ca9e3b6 ("fs: fix guard_bio_eod to check for real EOD errors") tries to fix this issue by returning -EIO for this situation. However, this way lets fs user code lose chance to handle -EIO, then sync_inodes_sb() may hang for ever. Also the current truncating on last segment is dangerous by updating the last bvec, given bvec table becomes not immutable any more, and fs bio users may not retrieve the truncated pages via bio_for_each_segment_all() in its .end_io callback. Fixes this issue by supporting multi-segment truncating. And the approach is simpler: - just update bio size since block layer can make correct bvec with the updated bio size. Then bvec table becomes really immutable. - zero all truncated segments for read bio Cc: Carlos Maiolino <cmaiolino@redhat.com> Cc: linux-fsdevel@vger.kernel.org Fixed-by: dce30ca9e3b6 ("fs: fix guard_bio_eod to check for real EOD errors") Reported-by: syzbot+2b9e54155c8c25d8d165@syzkaller.appspotmail.com Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-28riscv: export flush_icache_all to modulesOlof Johansson1-0/+1
This is needed by LKDTM (crash dump test module), it calls flush_icache_range(), which on RISC-V turns into flush_icache_all(). On other architectures, the actual implementation is exported, so follow that precedence and export it here too. Fixes build of CONFIG_LKDTM that fails with: ERROR: "flush_icache_all" [drivers/misc/lkdtm/lkdtm.ko] undefined! Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-12-28riscv: reject invalid syscalls below -1David Abdurachmanov1-0/+1
Running "stress-ng --enosys 4 -t 20 -v" showed a large number of kernel oops with "Unable to handle kernel paging request at virtual address" message. This happens when enosys stressor starts testing random non-valid syscalls. I forgot to redirect any syscall below -1 to sys_ni_syscall. With the patch kernel oops messages are gone while running stress-ng enosys stressor. Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com> Fixes: 5340627e3fe0 ("riscv: add support for SECCOMP and SECCOMP_FILTER") Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-12-28riscv: fix compile failure with EXPORT_SYMBOL() & !MMULuc Van Oostenryck2-3/+4
When support for !MMU was added, the declaration of __asm_copy_to_user() & __asm_copy_from_user() were #ifdefed out hence their EXPORT_SYMBOL() give an error message like: .../riscv_ksyms.c:13:15: error: '__asm_copy_to_user' undeclared here .../riscv_ksyms.c:14:15: error: '__asm_copy_from_user' undeclared here Since these symbols are not defined with !MMU it's wrong to export them. Same for __clear_user() (even though this one is also declared in include/asm-generic/uaccess.h and thus doesn't give an error message). Fix this by doing the EXPORT_SYMBOL() directly where these symbols are defined: inside lib/uaccess.S itself. Fixes: 6bd33e1ece52 ("riscv: fix compile failure with EXPORT_SYMBOL() & !MMU") Reported-by: kbuild test robot <lkp@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-12-28Merge tag 'scsi-fixes' of ↵Linus Torvalds6-11/+12
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Four fixes and one spelling update, all in drivers: two in lpfc and the rest in mp3sas, cxgbi and target" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: target/iblock: Fix protection error with blocks greater than 512B scsi: libcxgbi: fix NULL pointer dereference in cxgbi_device_destroy() scsi: lpfc: fix spelling mistakes of asynchronous scsi: lpfc: fix build failure with DEBUGFS disabled scsi: mpt3sas: Fix double free in attach error handling
2019-12-28net: stmmac: dwmac-meson8b: Fix the RGMII TX delay on Meson8b/8m2 SoCsMartin Blumenstingl1-3/+11
GXBB and newer SoCs use the fixed FCLK_DIV2 (1GHz) clock as input for the m250_sel clock. Meson8b and Meson8m2 use MPLL2 instead, whose rate can be adjusted at runtime. So far we have been running MPLL2 with ~250MHz (and the internal m250_div with value 1), which worked enough that we could transfer data with an TX delay of 4ns. Unfortunately there is high packet loss with an RGMII PHY when transferring data (receiving data works fine though). Odroid-C1's u-boot is running with a TX delay of only 2ns as well as the internal m250_div set to 2 - no lost (TX) packets can be observed with that setting in u-boot. Manual testing has shown that the TX packet loss goes away when using the following settings in Linux (the vendor kernel uses the same settings): - MPLL2 clock set to ~500MHz - m250_div set to 2 - TX delay set to 2ns on the MAC side Update the m250_div divider settings to only accept dividers greater or equal 2 to fix the TX delay generated by the MAC. iperf3 results before the change: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 182 MBytes 153 Mbits/sec 514 sender [ 5] 0.00-10.00 sec 182 MBytes 152 Mbits/sec receiver iperf3 results after the change (including an updated TX delay of 2ns): [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 927 MBytes 778 Mbits/sec 0 sender [ 5] 0.00-10.01 sec 927 MBytes 777 Mbits/sec receiver Fixes: 4f6a71b84e1afd ("net: stmmac: dwmac-meson8b: fix internal RGMII clock configuration") Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-28net/sched: act_mirred: Pull mac prior redir to non mac_header_xmit deviceShmulik Ladkani1-10/+12
There's no skb_pull performed when a mirred action is set at egress of a mac device, with a target device/action that expects skb->data to point at the network header. As a result, either the target device is errornously given an skb with data pointing to the mac (egress case), or the net stack receives the skb with data pointing to the mac (ingress case). E.g: # tc qdisc add dev eth9 root handle 1: prio # tc filter add dev eth9 parent 1: prio 9 protocol ip handle 9 basic \ action mirred egress redirect dev tun0 (tun0 is a tun device. result: tun0 errornously gets the eth header instead of the iph) Revise the push/pull logic of tcf_mirred_act() to not rely on the skb_at_tc_ingress() vs tcf_mirred_act_wants_ingress() comparison, as it does not cover all "pull" cases. Instead, calculate whether the required action on the target device requires the data to point at the network header, and compare this to whether skb->data points to network header - and make the push/pull adjustments as necessary. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Shmulik Ladkani <sladkani@proofpoint.com> Tested-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-28Merge tag 'drm-fixes-2019-12-28' of git://anongit.freedesktop.org/drm/drmLinus Torvalds14-86/+139
Pull drm fixes from Dave Airlie: "Post-xmas food coma recovery fixes. Only three fixes for i915 since I expect most people are holidaying. i915: - power management rc6 fix - framebuffer tracking fix - display power management ratelimit fix" * tag 'drm-fixes-2019-12-28' of git://anongit.freedesktop.org/drm/drm: drm/i915: Hold reference to intel_frontbuffer as we track activity drm/i915/gt: Ratelimit display power w/a drm/i915/pmu: Ensure monotonic rc6
2019-12-27Merge tag 'linux-kselftest-5.5-rc4' of ↵Linus Torvalds11-38/+70
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest fixes from Shuah Khan: - rseq build failures fixes related to glibc 2.30 compatibility from Mathieu Desnoyers - Kunit fixes and cleanups from SeongJae Park - Fixes to filesystems/epoll, firmware, and livepatch build failures and skip handling. * tag 'linux-kselftest-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: rseq/selftests: Clarify rseq_prepare_unload() helper requirements rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30 rseq/selftests: Turn off timeout setting kunit/kunit_tool_test: Test '--build_dir' option run kunit: Rename 'kunitconfig' to '.kunitconfig' kunit: Place 'test.log' under the 'build_dir' kunit: Create default config in '--build_dir' kunit: Remove duplicated defconfig creation docs/kunit/start: Use in-tree 'kunit_defconfig' selftests: livepatch: Fix it to do root uid check and skip selftests: firmware: Fix it to do root uid check and skip selftests: filesystems/epoll: fix build error
2019-12-27Merge tag 'pm-5.5-rc4' of ↵Linus Torvalds1-4/+1
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: "Fix compile test of the Tegra devfreq driver (Arnd Bergmann) and remove redundant Kconfig dependencies from multiple devfreq drivers (Leonard Crestez)" * tag 'pm-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / devfreq: tegra: Add COMMON_CLK dependency PM / devfreq: Drop explicit selection of PM_OPP
2019-12-27Merge tag 'io_uring-5.5-20191226' of git://git.kernel.dk/linux-blockLinus Torvalds2-343/+357
Pull io_uring fixes from Jens Axboe: - Removal of now unused busy wqe list (Hillf) - Add cond_resched() to io-wq work processing (Hillf) - And then the series that I hinted at from last week, which removes the sqe from the io_kiocb and keeps all sqe handling on the prep side. This guarantees that an opcode can't do the wrong thing and read the sqe more than once. This is unchanged from last week, no issues have been observed with this in testing. Hence I really think we should fold this into 5.5. * tag 'io_uring-5.5-20191226' of git://git.kernel.dk/linux-block: io-wq: add cond_resched() to worker thread io-wq: remove unused busy list from io_sqe io_uring: pass in 'sqe' to the prep handlers io_uring: standardize the prep methods io_uring: read 'count' for IORING_OP_TIMEOUT in prep handler io_uring: move all prep state for IORING_OP_{SEND,RECV}_MGS to prep handler io_uring: move all prep state for IORING_OP_CONNECT to prep handler io_uring: add and use struct io_rw for read/writes io_uring: use u64_to_user_ptr() consistently
2019-12-27Merge tag 'libata-5.5-20191226' of git://git.kernel.dk/linux-blockLinus Torvalds8-44/+128
Pull libata fixes from Jens Axboe: "Two things in here: - First half of a series that fixes ahci_brcm, also marked for stable. The other part of the series is going into 5.6 (Florian) - sata_nv regression fix that is also marked for stable (Sascha)" * tag 'libata-5.5-20191226' of git://git.kernel.dk/linux-block: ata: ahci_brcm: Add missing clock management during recovery ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE ata: ahci_brcm: Fix AHCI resources management ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys() libata: Fix retrieving of active qcs
2019-12-27Merge tag 'block-5.5-20191226' of git://git.kernel.dk/linux-blockLinus Torvalds2-1/+17
Pull block fixes from Jens Axboe: "Only thing here are the changes from Arnd from last week, which now have the appropriate header include to ensure they actually compile if COMPAT is enabled" * tag 'block-5.5-20191226' of git://git.kernel.dk/linux-block: compat_ioctl: block: handle Persistent Reservations compat_ioctl: block: handle add zone open, close and finish ioctl compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE pktcdvd: fix regression on 64-bit architectures
2019-12-27Merge tag 'gpio-v5.5-2' of ↵Linus Torvalds9-28/+35
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: "A set of fixes for the v5.5 series: - Fix the build for the Xtensa driver. - Make sure to set up the parent device for mpc8xxx. - Clarify the look-up error message. - Fix the usage of the line direction in the mockup device. - Fix a type warning on the Aspeed driver. - Remove the pointless __exit annotation on the xgs-iproc which is causing a compilation problem. - Fix up emultation of open drain outputs .get_direction() - Fix the IRQ callbacks on the PCA953xx to use bitops and work properly. - Fix the Kconfig on the Tegra driver" * tag 'gpio-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: tegra186: Allow building on Tegra194-only configurations gpio: pca953x: Switch to bitops in IRQ callbacks gpiolib: fix up emulated open drain outputs MAINTAINERS: Append missed file to the database gpio: xgs-iproc: remove __exit annotation for iproc_gpio_remove gpio: aspeed: avoid return type warning gpio: mockup: Fix usage of new GPIO_LINE_DIRECTION gpio: Fix error message on out-of-range GPIO in lookup table gpio: mpc8xxx: Add platform device to gpiochip->parent gpio: xtensa: fix driver build
2019-12-27ALSA: hda/realtek - Add Bass Speaker and fixed dac for bass speakerKailang Yang1-0/+19
Dell has new platform which has dual speaker connecting. They want dual speaker which use same dac for output. Signed-off-by: Kailang Yang <kailang@realtek.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/229c7efa2b474a16b7d8a916cd096b68@realtek.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-27ioat: ioat_alloc_ring() failure handling.Alexander.Barabash@dell.com1-1/+2
If dma_alloc_coherent() returns NULL in ioat_alloc_ring(), ring allocation must not proceed. Until now, if the first call to dma_alloc_coherent() in ioat_alloc_ring() returned NULL, the processing could proceed, failing with NULL-pointer dereferencing further down the line. Signed-off-by: Alexander Barabash <alexander.barabash@dell.com> Acked-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/75e9c0e84c3345d693c606c64f8b9ab5@x13pwhopdag1307.AMER.DELL.COM Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-12-27Merge tag 'drm-intel-fixes-2019-12-23' of ↵Dave Airlie14-86/+139
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes i915 power and frontbuffer tracking fixes Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87r20vdlrs.fsf@intel.com
2019-12-27net_sched: sch_fq: properly set sk->sk_pacing_statusEric Dumazet1-9/+8
If fq_classify() recycles a struct fq_flow because a socket structure has been reallocated, we do not set sk->sk_pacing_status immediately, but later if the flow becomes detached. This means that any flow requiring pacing (BBR, or SO_MAX_PACING_RATE) might fallback to TCP internal pacing, which requires a per-socket high resolution timer, and therefore more cpu cycles. Fixes: 218af599fa63 ("tcp: internal implementation for pacing") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Soheil Hassas Yeganeh <soheil@google.com> Cc: Neal Cardwell <ncardwell@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27Merge branch 'bnx2x-Bug-fixes'David S. Miller1-1/+4
Manish Chopra says: ==================== bnx2x: Bug fixes This series has changes in the area of vlan resources management APIs to fix fw assert issue reported in max vlan configuration testing over the PF. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27bnx2x: Fix accounting of vlan resources among the PFsManish Chopra1-1/+4
While testing max vlan configuration on the PF, firmware gets assert as driver was configuring number of vlans more than what is supported per port/engine, it was figured out that there is an implicit vlan (hidden default vlan consuming hardware cam entry resource) which is configured default for all the clients (PF/VFs) on client_init ramrod by the adapter implicitly, so when allocating resources among the PFs this implicit vlan should be considered or total vlan entries should be reduced by one to accommodate that default/implicit vlan entry. Signed-off-by: Manish Chopra <manishc@marvell.com> Signed-off-by: Ariel Elior <aelior@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27bnx2x: Use appropriate define for vlan creditManish Chopra1-1/+1
Although it has same value as MAX_MAC_CREDIT_E2, use MAX_VLAN_CREDIT_E2 appropriately. Signed-off-by: Manish Chopra <manishc@marvell.com> Signed-off-by: Ariel Elior <aelior@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller4-31/+34
Daniel Borkmann says: ==================== pull-request: bpf 2019-12-23 The following pull-request contains BPF updates for your *net* tree. We've added 2 non-merge commits during the last 1 day(s) which contain a total of 4 files changed, 34 insertions(+), 31 deletions(-). The main changes are: 1) Fix libbpf build when building on a read-only filesystem with O=dir option, from Namhyung Kim. 2) Fix a precision tracking bug for unknown scalars, from Daniel Borkmann. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27of: mdio: Add missing inline to of_mdiobus_child_is_phy() dummyGeert Uytterhoeven1-1/+1
If CONFIG_OF_MDIO=n: drivers/net/phy/mdio_bus.c:23: include/linux/of_mdio.h:58:13: warning: ‘of_mdiobus_child_is_phy’ defined but not used [-Wunused-function] static bool of_mdiobus_child_is_phy(struct device_node *child) ^~~~~~~~~~~~~~~~~~~~~~~ Fix this by adding the missing "inline" keyword. Fixes: 0aa4d016c043d16a ("of: mdio: export of_mdiobus_child_is_phy") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27net: phy: aquantia: add suspend / resume ops for AQR105Madalin Bucur1-0/+2
The suspend/resume code for AQR107 works on AQR105 too. This patch fixes issues with the partner not seeing the link down when the interface using AQR105 is brought down. Fixes: bee8259dd31f ("net: phy: add driver for aquantia phy") Signed-off-by: Madalin Bucur <madalin.bucur@oss.nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-27dpaa_eth: fix DMA mapping leakMadalin Bucur1-19/+20
On the error path some fragments remain DMA mapped. Adding a fix that unmaps all the fragments. Rework cleanup path to be simpler. Fixes: 8151ee88bad5 ("dpaa_eth: use page backed rx buffers") Signed-off-by: Madalin Bucur <madalin.bucur@oss.nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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