- 11 May, 2016 40 commits
-
-
James Morse authored
commit 625fe4f8 upstream. arm_cpuidle_suspend() may return -EOPNOTSUPP, or any value returned by the cpu_ops/cpuidle_ops suspend call. arm_enter_idle_state() doesn't update 'ret' with this value, meaning we always signal success to cpuidle_enter_state(), causing it to update the usage counters as if we succeeded. Fixes: 191de17a ("ARM64: cpuidle: Replace cpu_suspend by the common ARM/ARM64 function") Signed-off-by:
James Morse <james.morse@arm.com> Acked-by:
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by:
Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
Eric W. Biederman authored
commit 5ec0811d upstream. When the first propgated copy was a slave the following oops would result: > BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 > IP: [<ffffffff811fba4e>] propagate_one+0xbe/0x1c0 > PGD bacd4067 PUD bac66067 PMD 0 > Oops: 0000 [#1] SMP > Modules linked in: > CPU: 1 PID: 824 Comm: mount Not tainted 4.6.0-rc5userns+ #1523 > Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 > task: ffff8800bb0a8000 ti: ffff8800bac3c000 task.ti: ffff8800bac3c000 > RIP: 0010:[<ffffffff811fba4e>] [<ffffffff811fba4e>] propagate_one+0xbe/0x1c0 > RSP: 0018:ffff8800bac3fd38 EFLAGS: 00010283 > RAX: 0000000000000000 RBX: ffff8800bb77ec00 RCX: 0000000000000010 > RDX: 0000000000000000 RSI: ffff8800bb58c000 RDI: ffff8800bb58c480 > RBP: ffff8800bac3fd48 R08: 0000000000000001 R09: 0000000000000000 > R10: 0000000000001ca1 R11: 0000000000001c9d R12: 0000000000000000 > R13: ffff8800ba713800 R14: ffff8800bac3fda0 R15: ffff8800bb77ec00 > FS: 00007f3c0cd9b7e0(0000) GS:ffff8800bfb00000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 0000000000000010 CR3: 00000000bb79d000 CR4: 00000000000006e0 > Stack: > ffff8800bb77ec00 0000000000000000 ffff8800bac3fd88 ffffffff811fbf85 > ffff8800bac3fd98 ffff8800bb77f080 ffff8800ba713800 ffff8800bb262b40 > 0000000000000000 0000000000000000 ffff8800bac3fdd8 ffffffff811f1da0 > Call Trace: > [<ffffffff811fbf85>] propagate_mnt+0x105/0x140 > [<ffffffff811f1da0>] attach_recursive_mnt+0x120/0x1e0 > [<ffffffff811f1ec3>] graft_tree+0x63/0x70 > [<ffffffff811f1f6b>] do_add_mount+0x9b/0x100 > [<ffffffff811f2c1a>] do_mount+0x2aa/0xdf0 > [<ffffffff8117efbe>] ? strndup_user+0x4e/0x70 > [<ffffffff811f3a45>] SyS_mount+0x75/0xc0 > [<ffffffff8100242b>] do_syscall_64+0x4b/0xa0 > [<ffffffff81988f3c>] entry_SYSCALL64_slow_path+0x25/0x25 > Code: 00 00 75 ec 48 89 0d 02 22 22 01 8b 89 10 01 00 00 48 89 05 fd 21 22 01 39 8e 10 01 00 00 0f 84 e0 00 00 00 48 8b 80 d8 00 00 00 <48> 8b 50 10 48 89 05 df 21 22 01 48 89 15 d0 21 22 01 8b 53 30 > RIP [<ffffffff811fba4e>] propagate_one+0xbe/0x1c0 > RSP <ffff8800bac3fd38> > CR2: 0000000000000010 > ---[ end trace 2725ecd95164f217 ]--- This oops happens with the namespace_sem held and can be triggered by non-root users. An all around not pleasant experience. To avoid this scenario when finding the appropriate source mount to copy stop the walk up the mnt_master chain when the first source mount is encountered. Further rewrite the walk up the last_source mnt_master chain so that it is clear what is going on. The reason why the first source mount is special is that it it's mnt_parent is not a mount in the dest_mnt propagation tree, and as such termination conditions based up on the dest_mnt mount propgation tree do not make sense. To avoid other kinds of confusion last_dest is not changed when computing last_source. last_dest is only used once in propagate_one and that is above the point of the code being modified, so changing the global variable is meaningless and confusing. fixes: f2ebb3a9 ("smarter propagate_mnt()") Reported-by:
Tycho Andersen <tycho.andersen@canonical.com> Reviewed-by:
Seth Forshee <seth.forshee@canonical.com> Tested-by:
"Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by:
-
Maxim Patlasov authored
commit 7ae8fd03 upstream. propagate_one(m) calculates "type" argument for copy_tree() like this: > if (m->mnt_group_id == last_dest->mnt_group_id) { > type = CL_MAKE_SHARED; > } else { > type = CL_SLAVE; > if (IS_MNT_SHARED(m)) > type |= CL_MAKE_SHARED; > } The "type" argument then governs clone_mnt() behavior with respect to flags and mnt_master of new mount. When we iterate through a slave group, it is possible that both current "m" and "last_dest" are not shared (although, both are slaves, i.e. have non-NULL mnt_master-s). Then the comparison above erroneously makes new mount shared and sets its mnt_master to last_source->mnt_master. The patch fixes the problem by handling zero mnt_group_id-s as though they are unequal. The similar problem exists in the implementation of "else" clause above when we have to ascend upward in the master/slave tree by calling: > last_source = last_source->mnt_master; > last_dest = last_source->mnt_parent; proper number of times. The last step is governed by "n->mnt_group_id != last_dest->mnt_group_id" condition that may lie if both are zero. The patch fixes this case in the same way as the former one. [AV: don't open-code an obvious helper...] Signed-off-by:
Maxim Patlasov <mpatlasov@virtuozzo.com> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Cc: Seth Forshee <seth.forshee@canonical.com> Signed-off-by:
-
Chen Yu authored
commit 886123fb upstream. Currently we read the tsc radio: ratio = (MSR_PLATFORM_INFO >> 8) & 0x1f; Thus we get bit 8-12 of MSR_PLATFORM_INFO, however according to the SDM (35.5), the ratio bits are bit 8-15. Ignoring the upper bits can result in an incorrect tsc ratio, which causes the TSC calibration and the Local APIC timer frequency to be incorrect. Fix this problem by masking 0xff instead. [ tglx: Massaged changelog ] Fixes: 7da7c156 "x86, tsc: Add static (MSR) TSC calibration on Intel Atom SoCs" Signed-off-by:
Chen Yu <yu.c.chen@intel.com> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Bin Gao <bin.gao@intel.com> Cc: Len Brown <lenb@kernel.org> Link: http://lkml.kernel.org/r/1462505619-5516-1-git-send-email-yu.c.chen@intel.comSigned-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
-
Matt Fleming authored
commit e8dfe6d8 upstream. Mark reported that having asterisks on the end of directory names confuses get_maintainer.pl when it encounters subdirectories, and that my name does not appear when run on drivers/firmware/efi/libstub. Reported-by:
Mark Rutland <mark.rutland@arm.com> Signed-off-by:
Matt Fleming <matt@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/1462303781-8686-2-git-send-email-matt@codeblueprint.co.ukSigned-off-by:
Ingo Molnar <mingo@kernel.org> Signed-off-by:
-
Howard Cochran authored
commit 74d36944 upstream. Commit 947e9762 ("writeback: update wb_over_bg_thresh() to use wb_domain aware operations") unintentionally changed this function's meaning from "are there more dirty pages than the background writeback threshold" to "are there more dirty pages than the writeback threshold". The background writeback threshold is typically half of the writeback threshold, so this had the effect of raising the number of dirty pages required to cause a writeback worker to perform background writeout. This can cause a very severe performance regression when a BDI uses BDI_CAP_STRICTLIMIT because balance_dirty_pages() and the writeback worker can now disagree on whether writeback should be initiated. For example, in a system having 1GB of RAM, a single spinning disk, and a "pass-through" FUSE filesystem mounted over the disk, application code mmapped a 128MB file on the disk and was randomly dirtying pages in that mapping. Because FUSE uses strictlimit and has a default max_ratio of only 1%, in balance_dirty_pages, thresh is ~200, bg_thresh is ~100, and the dirty_freerun_ceiling is the average of those, ~150. So, it pauses the dirtying processes when we have 151 dirty pages and wakes up a background writeback worker. But the worker tests the wrong threshold (200 instead of 100), so it does not initiate writeback and just returns. Thus, balance_dirty_pages keeps looping, sleeping and then waking up the worker who will do nothing. It remains stuck in this state until the few dirty pages that we have finally expire and we write them back for that reason. Then the whole process repeats, resulting in near-zero throughput through the FUSE BDI. The fix is to call the parameterized variant of wb_calc_thresh, so that the worker will do writeback if the bg_thresh is exceeded which was the behavior before the referenced commit. Fixes: 947e9762 ("writeback: update wb_over_bg_thresh() to use wb_domain aware operations") Signed-off-by:
Howard Cochran <hcochran@kernelspring.com> Acked-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
Miklos Szeredi <mszeredi@redhat.com> Tested-by Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by:
Jens Axboe <axboe@fb.com> Signed-off-by:
-
Sven Eckelmann authored
commit d1a65f17 upstream. _batadv_update_route rcu_derefences orig_ifinfo->router outside of a spinlock protected region to print some information messages to the debug log. But this pointer is not checked again when the new pointer is assigned in the spinlock protected region. Thus is can happen that the value of orig_ifinfo->router changed in the meantime and thus the reference counter of the wrong router gets reduced after the spinlock protected region. Just rcu_dereferencing the value of orig_ifinfo->router inside the spinlock protected region (which also set the new pointer) is enough to get the correct old router object. Fixes: e1a5382f ("batman-adv: Make orig_node->router an rcu protected pointer") Signed-off-by:
Sven Eckelmann <sven@narfation.org> Signed-off-by:
Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by:
Antonio Quartulli <a@unstable.cc> Signed-off-by:
-
Linus Lüssing authored
commit c4fdb6cf upstream. When removing a single interface while a broadcast or ogm packet is still pending then we will free the forward packet without releasing the queue slots again. This patch is supposed to fix this issue. Fixes: 6d5808d4 ("batman-adv: Add missing hardif_free_ref in forw_packet_free") Signed-off-by:
Linus Lüssing <linus.luessing@c0d3.blue> [sven@narfation.org: fix conflicts with current version] Signed-off-by:
-
Sven Eckelmann authored
commit c7829666 upstream. The encapsulated ethernet and VLAN header may be outside the received ethernet frame. Thus the skb buffer size has to be checked before it can be parsed to find out if it encapsulates another batman-adv packet. Fixes: 42019357 ("batman-adv: softif bridge loop avoidance") Signed-off-by:
-
Antonio Quartulli authored
commit 2871734e upstream. Now that DAT is VLAN aware, it must use the VID when computing the DHT address of the candidate nodes where an entry is going to be stored/retrieved. Fixes: be1db4f6 ("batman-adv: make the Distributed ARP Table vlan aware") Signed-off-by:
-
Jason Baron authored
commit bc22af74 upstream. Khugepaged attempts to raise min_free_kbytes if its set too low. However, on boot khugepaged sets min_free_kbytes first from subsys_initcall(), and then the mm 'core' over-rides min_free_kbytes after from init_per_zone_wmark_min(), via a module_init() call. Khugepaged used to use a late_initcall() to set min_free_kbytes (such that it occurred after the core initialization), however this was removed when the initialization of min_free_kbytes was integrated into the starting of the khugepaged thread. The fix here is simply to invoke the core initialization using a core_initcall() instead of module_init(), such that the previous initialization ordering is restored. I didn't restore the late_initcall() since start_stop_khugepaged() already sets min_free_kbytes via set_recommended_min_free_kbytes(). This was noticed when we had a number of page allocation failures when moving a workload to a kernel with this new initialization ordering. On an 8GB system this restores min_free_kbytes back to 67584 from 11365 when CONFIG_TRANSPARENT_HUGEPAGE=y is set and either CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y or CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y. Fixes: 79553da2 ("thp: cleanup khugepaged startup") Signed-off-by:
Jason Baron <jbaron@akamai.com> Acked-by:
Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by:
David Rientjes <rientjes@google.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
-
Mathias Krause authored
commit 8148a73c upstream. If /proc/<PID>/environ gets read before the envp[] array is fully set up in create_{aout,elf,elf_fdpic,flat}_tables(), we might end up trying to read more bytes than are actually written, as env_start will already be set but env_end will still be zero, making the range calculation underflow, allowing to read beyond the end of what has been written. Fix this as it is done for /proc/<PID>/cmdline by testing env_end for zero. It is, apparently, intentionally set last in create_*_tables(). This bug was found by the PaX size_overflow plugin that detected the arithmetic underflow of 'this_len = env_end - (env_start + src)' when env_end is still zero. The expected consequence is that userland trying to access /proc/<PID>/environ of a not yet fully set up process may get inconsistent data as we're in the middle of copying in the environment variables. Fixes: https://forums.grsecurity.net/viewtopic.php?f=3&t=4363 Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=116461Signed-off-by:
Mathias Krause <minipli@googlemail.com> Cc: Emese Revfy <re.emese@gmail.com> Cc: Pax Team <pageexec@freemail.hu> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Mateusz Guzik <mguzik@redhat.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Jarod Wilson <jarod@redhat.com> Signed-off-by:
-
Knut Wohlrab authored
commit 6984ab1a upstream. A wrong decoding of the touch coordinate message causes a wrong touch ID. Touch ID for dual touch must be 0 or 1. According to the actual Neonode nine byte touch coordinate coding, the state is transported in the lower nibble and the touch ID in the higher nibble of payload byte five. Signed-off-by:
Knut Wohlrab <Knut.Wohlrab@de.bosch.com> Signed-off-by:
Oleksij Rempel <linux@rempel-privat.de> Signed-off-by:
Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
-
Nazar Mokrynskyi authored
commit 567a44ec upstream. Needed for v2 of the device firmware, otherwise kernel will stuck for few seconds and throw "usb_submit_urb(ctrl) failed: -1" early on system boot. Signed-off-by:
Nazar Mokrynskyi <nazar@mokrynskyi.com> Reviewed-by:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Signed-off-by:
-
Ping Cheng authored
commit e1123fe9 upstream. DTK-1651 is a display pen-only tablet Signed-off-by:
Ping Cheng <pingc@wacom.com> Signed-off-by:
-
Jan Beulich authored
commit 27e0e638 upstream. The copying of ring data was wrong for two cases: For a full ring nothing got copied at all (as in that case the canonicalized producer and consumer indexes are identical). And in case one or both of the canonicalized (after the resize) indexes would point into the second half of the buffer, the copied data ended up in the wrong (free) part of the new buffer. In both cases uninitialized data would get passed back to the caller. Fix this by simply copying the old ring contents twice: Once to the low half of the new buffer, and a second time to the high half. This addresses the inability to boot a HVM guest with 64 or more vCPUs. This regression was caused by 86200154 (xen/evtchn: dynamically grow pending event channel ring). Reported-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by:
Jan Beulich <jbeulich@suse.com> Signed-off-by:
David Vrabel <david.vrabel@citrix.com> Signed-off-by:
-
Ross Lagerwall authored
commit dfd74a1e upstream. Commit 55b3da98 (xen/balloon: find non-conflicting regions to place hotplugged memory) caused a regression in 4.4. When ballooning on an x86 32 bit PAE system with close to 64 GiB of memory, the address returned by allocate_resource may be above 64 GiB. When using CONFIG_SPARSEMEM, this setup is limited to using physical addresses < 64 GiB. When adding memory at this address, it runs off the end of the mem_section array and causes a crash. Instead, fail the ballooning request. Signed-off-by:
Ross Lagerwall <ross.lagerwall@citrix.com> Signed-off-by:
-
Ross Lagerwall authored
commit 60901df3 upstream. Commit 1084b198 (xen: Add Xen specific page definition) caused a regression in 4.4. The xen functions to convert between pages and pfns fail due to an overflow on systems where a physical address may not fit in an unsigned long (e.g. x86 32 bit PAE systems). Rework the conversion to avoid overflow. This should also result in simpler object code. This bug manifested itself as disk corruption with Linux 4.4 when using blkfront in a Xen HVM x86 32 bit guest with more than 4 GiB of memory. Signed-off-by:
-
Sascha Hauer authored
commit 5616f367 upstream. The secondary CPU starts up in ARM mode. When the kernel is compiled in thumb2 mode we have to explicitly compile the secondary startup trampoline in ARM mode, otherwise the CPU will go to Nirvana. Signed-off-by:
Sascha Hauer <s.hauer@pengutronix.de> Reported-by:
Steffen Trumtrar <s.trumtrar@pengutronix.de> Suggested-by:
Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by:
Dinh Nguyen <dinguyen@opensource.altera.com> Signed-off-by:
Kevin Hilman <khilman@baylibre.com> Signed-off-by:
-
Krzysztof Kozlowski authored
commit a0a966b8 upstream. We want to skip reparenting a clock on turning on power domain, if we do not have the parent yet. The parent is obtained when turning the domain off. However due to a typo, the loop is continued on IS_ERR() of clock being reparented, not on the IS_ERR() of the parent. Theoretically this could lead to OOPS on first turn on of a power domain, if there was no turn off before. Practically that should never happen because all power domains are turned on by default (reset value, bootloader does not turn off them usually) so the first action will be always turn off. Fixes: 29e5eea0 ("ARM: EXYNOS: Get current parent clock for power domain on/off") Reported-by:
Vladimir Zapolskiy <vz@mleia.com> Signed-off-by:
Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by:
-
Dan Streetman authored
commit 32a4e169 upstream. Instead of using "zswap" as the name for all zpools created, add an atomic counter and use "zswap%x" with the counter number for each zpool created, to provide a unique name for each new zpool. As zsmalloc, one of the zpool implementations, requires/expects a unique name for each pool created, zswap should provide a unique name. The zsmalloc pool creation does not fail if a new pool with a conflicting name is created, unless CONFIG_ZSMALLOC_STAT is enabled; in that case, zsmalloc pool creation fails with -ENOMEM. Then zswap will be unable to change its compressor parameter if its zpool is zsmalloc; it also will be unable to change its zpool parameter back to zsmalloc, if it has any existing old zpool using zsmalloc with page(s) in it. Attempts to change the parameters will result in failure to create the zpool. This changes zswap to provide a unique name for each zpool creation. Fixes: f1c54846 ("zswap: dynamic pool creation") Signed-off-by:
Dan Streetman <ddstreet@ieee.org> Reported-by:
Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reviewed-by:
-
Hugh Dickins authored
commit 14af4a5e upstream. /proc/sys/vm/stat_refresh warns nr_isolated_anon and nr_isolated_file go increasingly negative under compaction: which would add delay when should be none, or no delay when should delay. The bug in compaction was due to a recent mmotm patch, but much older instance of the bug was also noticed in isolate_migratepages_range() which is used for CMA and gigantic hugepage allocations. The bug is caused by putback_movable_pages() in an error path decrementing the isolated counters without them being previously incremented by acct_isolated(). Fix isolate_migratepages_range() by removing the error-path putback, thus reaching acct_isolated() with migratepages still isolated, and leaving putback to caller like most other places do. Fixes: edc2ca61 ("mm, compaction: move pageblock checks up from isolate_migratepages_range()") [vbabka@suse.cz: expanded the changelog] Signed-off-by:
Hugh Dickins <hughd@google.com> Signed-off-by:
Vlastimil Babka <vbabka@suse.cz> Acked-by:
Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by:
-
Linus Torvalds authored
commit 689de1d6 upstream. This is a fairly minimal fixup to the horribly bad behavior of hash_64() with certain input patterns. In particular, because the multiplicative value used for the 64-bit hash was intentionally bit-sparse (so that the multiply could be done with shifts and adds on architectures without hardware multipliers), some bits did not get spread out very much. In particular, certain fairly common bit ranges in the input (roughly bits 12-20: commonly with the most information in them when you hash things like byte offsets in files or memory that have block factors that mean that the low bits are often zero) would not necessarily show up much in the result. There's a bigger patch-series brewing to fix up things more completely, but this is the fairly minimal fix for the 64-bit hashing problem. It simply picks a much better constant multiplier, spreading the bits out a lot better. NOTE! For 32-bit architectures, the bad old hash_64() remains the same for now, since 64-bit multiplies are expensive. The bigger hashing cleanup will replace the 32-bit case with something better. The new constants were picked by George Spelvin who wrote that bigger cleanup series. I just picked out the constants and part of the comment from that series. Cc: George Spelvin <linux@horizon.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
-
Shaohua Li authored
commit 9c573de3 upstream. blk_queue_split marks bio unmergeable, which makes sense for normal bio. But if dispatching the bio to underlayer disk, the blk_queue_split checks are invalid, hence it's possible the bio becomes mergeable. In the reported bug, this bug causes trim against raid0 performance slash https://bugzilla.kernel.org/show_bug.cgi?id=117051Reported-and-tested-by:
Park Ju Hyung <qkrwngud825@gmail.com> Fixes: 6ac45aeb(block: avoid to merge splitted bio) Cc: Ming Lei <ming.lei@canonical.com> Cc: Neil Brown <neilb@suse.de> Reviewed-by:
Shaohua Li <shli@fb.com> Signed-off-by:
-
Chunyu Hu authored
commit 854145e0 upstream. Currently register functions for events will be called through the 'reg' field of event class directly without any check when seting up triggers. Triggers for events that don't support register through debug fs (events under events/ftrace are for trace-cmd to read event format, and most of them don't have a register function except events/ftrace/functionx) can't be enabled at all, and an oops will be hit when setting up trigger for those events, so just not creating them is an easy way to avoid the oops. Link: http://lkml.kernel.org/r/1462275274-3911-1-git-send-email-chuhu@redhat.com Fixes: 85f2b082 ("tracing: Add basic event trigger framework") Signed-off-by:
Chunyu Hu <chuhu@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org> Signed-off-by:
-
Johannes Berg authored
commit e6436be2 upstream. In the case that dev_alloc_name() fails, e.g. because the name was given by the user and already exists, we need to clean up properly and free the per-CPU statistics. Fix that. Fixes: 5a490510 ("mac80211: use per-CPU TX/RX statistics") Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
-
Oleksij Rempel authored
commit de478a61 upstream. by moving common code to ar5008_hw_cmn_spur_mitigate i forgot to move mask_m & mask_p initialisation. This coused a performance regression on ar9281. Fixes: f911085f ("ath9k: split ar5008_hw_spur_mitigate and reuse common code in ar9002_hw_spur_mitigate.") Reported-by:
Gustav Frederiksen <lkml2017@openmailbox.org> Tested-by:
Kalle Valo <kvalo@codeaurora.org> Signed-off-by:
-
Arnd Bergmann authored
commit aeb6641f upstream. gcc-6 complains about the indentation of the lpfc_destroy_vport_work_array() call in lpfc_online(), which clearly doesn't look right: drivers/scsi/lpfc/lpfc_init.c: In function 'lpfc_online': drivers/scsi/lpfc/lpfc_init.c:2880:3: warning: statement is indented as if it were guarded by... [-Wmisleading-indentation] lpfc_destroy_vport_work_array(phba, vports); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/scsi/lpfc/lpfc_init.c:2863:2: note: ...this 'if' clause, but it is not if (vports != NULL) ^~ Looking at the patch that introduced this code, it's clear that the behavior is correct and the indentation is wrong. This fixes the indentation and adds curly braces around the previous if() block for clarity, as that is most likely what caused the code to be misindented in the first place. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Fixes: 549e55cd ("[SCSI] lpfc 8.2.2 : Fix locking around HBA's port_list") Reviewed-by:
Sebastian Herbszt <herbszt@gmx.de> Reviewed-by:
Hannes Reinecke <hare@suse.com> Reviewed-by:
Ewan D. Milne <emilne@redhat.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
-
Stephen Boyd authored
commit 0f75e1a3 upstream. The offset seems to have been copied from the sata clk. Fix it so that enabling the crypto engine source clk works. Tested-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Tested-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Fixes: 5f775498 ("clk: qcom: Fully support apq8064 global clock control") Signed-off-by:
Stephen Boyd <sboyd@codeaurora.org> Signed-off-by:
-
Linus Walleij authored
commit ec7957a6 upstream. Despite care take to allocate clocks state containers the SP810 driver actually just supports creating one instance: all clocks registered for every instance will end up with the exact same name and __clk_init() will fail. Rename the timclken<0> .. timclken<n> to sp810_<instance>_<n> so every clock on every instance gets a unique name. This is necessary for the RealView PBA8 which has two SP810 blocks: the second block will not register its clocks unless every clock on every instance is unique and results in boot logs like this: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at ../drivers/clk/versatile/clk-sp810.c:137 clk_sp810_of_setup+0x110/0x154() Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.5.0-rc2-00030-g352718fc39f6-dirty #225 Hardware name: ARM RealView Machine (Device Tree Support) [<c00167f8>] (unwind_backtrace) from [<c0013204>] (show_stack+0x10/0x14) [<c0013204>] (show_stack) from [<c01a049c>] (dump_stack+0x84/0x9c) [<c01a049c>] (dump_stack) from [<c0024990>] (warn_slowpath_common+0x74/0xb0) [<c0024990>] (warn_slowpath_common) from [<c0024a68>] (warn_slowpath_null+0x1c/0x24) [<c0024a68>] (warn_slowpath_null) from [<c051eb44>] (clk_sp810_of_setup+0x110/0x154) [<c051eb44>] (clk_sp810_of_setup) from [<c051e3a4>] (of_clk_init+0x12c/0x1c8) [<c051e3a4>] (of_clk_init) from [<c0504714>] (time_init+0x20/0x2c) [<c0504714>] (time_init) from [<c0501b18>] (start_kernel+0x244/0x3c4) [<c0501b18>] (start_kernel) from [<7000807c>] (0x7000807c) ---[ end trace cb88537fdc8fa200 ]--- Cc: Michael Turquette <mturquette@baylibre.com> Cc: Pawel Moll <pawel.moll@arm.com> Fixes: 6e973d2c "clk: vexpress: Add separate SP810 driver" Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
-
Srinivas Kandagatla authored
commit 732d6913 upstream. This patch corrects the enable register offset which is actually 0x36cc instead of 0x36c4 Signed-off-by:
-
Andreas Färber authored
commit bb473593 upstream. As preparation for arm64 based mesongxbb, which pulls in this code once enabling ARCH_MESON, fix a size_t vs. unsigned int type mismatch. The loop uses a local unsigned int variable, so adopt that type, matching the header. Fixes: 7a29a869 ("clk: meson: Add support for Meson clock controller") Signed-off-by:
Andreas Färber <afaerber@suse.de> Acked-by:
Carlo Caione <carlo@endlessm.com> Signed-off-by:
-
Shawn Lin authored
commit 2467b674 upstream. Add free memeory if rockchip_clk_register_branch fails. Fixes: a245fecb ("clk: rockchip: add basic infrastructure...") Signed-off-by:
Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Signed-off-by:
-
Shawn Lin authored
commit 1d961f11 upstream. If we fail to probe the driver, we should not directly break from the for_each_available_child_of_node since it calls of_node_get while iterating. This patch add of_node_put to fix the unbalanced call pair. Fixes: 7c696693 ("soc: rockchip: power-domain: Add power domain driver") Signed-off-by:
-
Heiko Stuebner authored
commit 50359819 upstream. Commit e6d5e7d9 ("clk-divider: Fix READ_ONLY when divider > 1") removed the special ops struct for read-only clocks and instead opted to handle them inside the regular ops. On the rk3368 this results in breakage as aclkm now gets set a value. While it is the same divider value, the A53 core still doesn't like it, which can result in the cpu ending up in a hang. The reason being that "ACLKENMasserts one clock cycle before the rising edge of ACLKM" and the clock should only be touched when STANDBYWFIL2 is asserted. To fix this, reintroduce the read-only ops but do include the round_rate callback. That way no writes that may be unsafe are done to the divider register in any case. The Rockchip use of the clk_divider_ops is adapted to this split again, as is the nxp, lpc18xx-ccu driver that was included since the original commit. On lpc18xx-ccu the divider seems to always be read-only so only uses the new ops now. Fixes: e6d5e7d9 ("clk-divider: Fix READ_ONLY when divider > 1") Reported-by:
Zhang Qing <zhangqing@rock-chips.com> Signed-off-by:
-
Krzysztof Halasa authored
commit 88e9da9a upstream. The "where" offset was added twice, fix it. Signed-off-by:
Krzysztof Hałasa <khalasa@piap.pl> Fixes: 498a92d4 ("ARM: cns3xxx: pci: avoid potential stack overflow") Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
-
Amitkumar Karwar authored
commit a6139b62 upstream. This patch corrects the error case in association path by returning -1. Earlier "media_connected" used to remain on in this error case causing failure for further association attempts. Signed-off-by:
Amitkumar Karwar <akarwar@marvell.com> Fixes: b887664d ('mwifiex: channel switch handling for station') Signed-off-by:
Cathy Luo <cluo@marvell.com> Signed-off-by:
-
Dan Carpenter authored
commit 8134233e upstream. If the call to acpi_get_object_info() fails then "info" hasn't been initialized. In that situation, we already know that "version" should be XGENE_AHCI_V1 so we don't actually need to dereference "info". Fixes: c9802a4b ('ata: ahci_xgene: Add AHCI Support for 2nd HW version of APM X-Gene SoC AHCI SATA Host controller.') Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
-
Dan Streetman authored
commit da6ccaaa upstream. Make the "Attempted send on closed socket" error messages generated in nbd_request_handler() ratelimited. When the nbd socket is shutdown, the nbd_request_handler() function emits an error message for every request remaining in its queue. If the queue is large, this will spam a large amount of messages to the log. There's no need for a separate error message for each request, so this patch ratelimits it. In the specific case this was found, the system was virtual and the error messages were logged to the serial port, which overwhelmed it. Fixes: 4d48a542 ("nbd: fix I/O hang on disconnected nbds") Signed-off-by:
Dan Streetman <dan.streetman@canonical.com> Signed-off-by:
Markus Pargmann <mpa@pengutronix.de> Signed-off-by:
-
Andy Shevchenko authored
commit 84cb36ca upstream. We forgot to remove the clock tree if something goes wrong in ->probe(). Add a call to intel_lpss_unregister_clock() on error path in ->probe() to fix the potential issue. Fixes: 4b45efe8 (mfd: Add support for Intel Sunrisepoint LPSS devices) Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by:
Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by:
Lee Jones <lee.jones@linaro.org> Signed-off-by:
-
