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2018-10-31fs/hfs/extent.c: fix array out of bounds read of array extentColin Ian King
Currently extent and index i are both being incremented causing an array out of bounds read on extent[i]. Fix this by removing the extraneous increment of extent. Ernesto said: : This is only triggered when deleting a file with a resource fork. I : may be wrong because the documentation isn't clear, but I don't think : you can create those under linux. So I guess nobody was testing them. : : > A disk space leak, perhaps? : : That's what it looks like in general. hfs_free_extents() won't do : anything if the block count doesn't add up, and the error will be : ignored. Now, if the block count randomly does add up, we could see : some corruption. Detected by CoverityScan, CID#711541 ("Out of bounds read") Link: http://lkml.kernel.org/r/20180831140538.31566-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Ernesto A. Fernndez <ernesto.mnd.fernandez@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31hfs: update timestamp on truncate()Ernesto A. Fernández
The vfs takes care of updating mtime on ftruncate(), but on truncate() it must be done by the module. Link: http://lkml.kernel.org/r/e1611eda2985b672ed2d8677350b4ad8c2d07e8a.1539316825.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31hfsplus: update timestamps on truncate()Ernesto A. Fernández
The vfs takes care of updating ctime and mtime on ftruncate(), but on truncate() it must be done by the module. This patch can be tested with xfstests generic/313. Link: http://lkml.kernel.org/r/9beb0913eea37288599e8e1b7cec8768fb52d1b8.1539316825.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31hfs: fix return value of hfs_get_block()Ernesto A. Fernández
Direct writes to empty inodes fail with EIO. The generic direct-io code is in part to blame (a patch has been submitted as "direct-io: allow direct writes to empty inodes"), but hfs is worse affected than the other filesystems because the fallback to buffered I/O doesn't happen. The problem is the return value of hfs_get_block() when called with !create. Change it to be more consistent with the other modules. Link: http://lkml.kernel.org/r/4538ab8c35ea37338490525f0f24cbc37227528c.1539195310.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31hfsplus: fix return value of hfsplus_get_block()Ernesto A. Fernández
Direct writes to empty inodes fail with EIO. The generic direct-io code is in part to blame (a patch has been submitted as "direct-io: allow direct writes to empty inodes"), but hfsplus is worse affected than the other filesystems because the fallback to buffered I/O doesn't happen. The problem is the return value of hfsplus_get_block() when called with !create. Change it to be more consistent with the other modules. Link: http://lkml.kernel.org/r/2cd1301404ec7cf1e39c8f11a01a4302f1460ad6.1539195310.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31hfs: prevent btree data loss on ENOSPCErnesto A. Fernández
Inserting a new record in a btree may require splitting several of its nodes. If we hit ENOSPC halfway through, the new nodes will be left orphaned and their records will be lost. This could mean lost inodes or extents. Henceforth, check the available disk space before making any changes. This still leaves the potential problem of corruption on ENOMEM. There is no need to reserve space before deleting a catalog record, as we do for hfsplus. This difference is because hfs index nodes have fixed length keys. Link: http://lkml.kernel.org/r/ab5fc8a7d5ffccfd5f27b1cf2cb4ceb6c110da74.1536269131.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31hfsplus: prevent btree data loss on ENOSPCErnesto A. Fernández
Inserting or deleting a record in a btree may require splitting several of its nodes. If we hit ENOSPC halfway through, the new nodes will be left orphaned and their records will be lost. This could mean lost inodes, extents or xattrs. Henceforth, check the available disk space before making any changes. This still leaves the potential problem of corruption on ENOMEM. The patch can be tested with xfstests generic/027. Link: http://lkml.kernel.org/r/4596eef22fbda137b4ffa0272d92f0da15364421.1536269129.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31hfs: fix BUG on bnode parent updateErnesto A. Fernández
hfs_brec_update_parent() may hit BUG_ON() if the first record of both a leaf node and its parent are changed, and if this forces the parent to be split. It is not possible for this to happen on a valid hfs filesystem because the index nodes have fixed length keys. For reasons I ignore, the hfs module does have support for a number of hfsplus features. A corrupt btree header may report variable length keys and trigger this BUG, so it's better to fix it. Link: http://lkml.kernel.org/r/cf9b02d57f806217a2b1bf5db8c3e39730d8f603.1535682463.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Christoph Hellwig <hch@infradead.org> Cc: Viacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31hfs: prevent btree data loss on root splitErnesto A. Fernández
This bug is triggered whenever hfs_brec_update_parent() needs to split the root node. The height of the btree is not increased, which leaves the new node orphaned and its records lost. It is not possible for this to happen on a valid hfs filesystem because the index nodes have fixed length keys. For reasons I ignore, the hfs module does have support for a number of hfsplus features. A corrupt btree header may report variable length keys and trigger this bug, so it's better to fix it. Link: http://lkml.kernel.org/r/9750b1415685c4adca10766895f6d5ef12babdb0.1535682463.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31hfsplus: fix BUG on bnode parent updateErnesto A. Fernández
Creating, renaming or deleting a file may hit BUG_ON() if the first record of both a leaf node and its parent are changed, and if this forces the parent to be split. This bug is triggered by xfstests generic/027, somewhat rarely; here is a more reliable reproducer: truncate -s 50M fs.iso mkfs.hfsplus fs.iso mount fs.iso /mnt i=1000 while [ $i -le 2400 ]; do touch /mnt/$i &>/dev/null ((++i)) done i=2400 while [ $i -ge 1000 ]; do mv /mnt/$i /mnt/$(perl -e "print $i x61") &>/dev/null ((--i)) done The issue is that a newly created bnode is being put twice. Reset new_node to NULL in hfs_brec_update_parent() before reaching goto again. Link: http://lkml.kernel.org/r/5ee1db09b60373a15890f6a7c835d00e76bf601d.1535682461.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31hfsplus: prevent btree data loss on root splitErnesto A. Fernández
Creating, renaming or deleting a file may cause catalog corruption and data loss. This bug is randomly triggered by xfstests generic/027, but here is a faster reproducer: truncate -s 50M fs.iso mkfs.hfsplus fs.iso mount fs.iso /mnt i=100 while [ $i -le 150 ]; do touch /mnt/$i &>/dev/null ((++i)) done i=100 while [ $i -le 150 ]; do mv /mnt/$i /mnt/$(perl -e "print $i x82") &>/dev/null ((++i)) done umount /mnt fsck.hfsplus -n fs.iso The bug is triggered whenever hfs_brec_update_parent() needs to split the root node. The height of the btree is not increased, which leaves the new node orphaned and its records lost. Link: http://lkml.kernel.org/r/26d882184fc43043a810114258f45277752186c7.1535682461.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31init/do_mounts.c: add root=PARTLABEL=<name> supportNikolaus Voss
Support referencing the root partition label from GPT as argument to the root= option on the kernel command line in analogy to referencing the partition uuid as root=PARTUUID=<uuid>. Specifying the partition label instead of the uuid is often much easier, e.g. in embedded environments when there is an A/B rootfs partition scheme for interruptible firmware updates (i.e. rootfsA/ rootfsB). The partition label can be queried with the blkid command. Link: http://lkml.kernel.org/r/20180822060904.828E510665E@pc-niv.weinmann.com Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Sasha Levin <Alexander.Levin@microsoft.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31checkpatch: remove GCC_BINARY_CONSTANT warningChristophe Leroy
This warning was there to avoid the use of 0bxxx values as they are not supported by gcc prior to v4.3 Since cafa0010cd51f ("Raise the minimum required gcc version to 4.6"), it's not an issue anymore and using such values can increase readability of code. Joe said: : Seems sensible as the other compilers also support binary literals from : relatively old versions. : http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3472.pdf : https://software.intel.com/en-us/articles/c14-features-supported-by-intel-c-compiler Link: http://lkml.kernel.org/r/392eeae782302ee8812a3c932a602035deed1609.1535351453.git.christophe.leroy@c-s.fr Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31include/linux/compat.h: mark expected switch fall-throughsGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Link: http://lkml.kernel.org/r/20181013115048.GA3262@embeddedor.com Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31lib/kstrtox.c: delete unnecessary castsAlexey Dobriyan
Implicit casts to the same type are done by the language if necessary. Link: http://lkml.kernel.org/r/20181014223934.GA18107@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31lib/rbtree.c: fix typo in comment of rb_insert_augmented()Wei Yang
The function name in the comment is not correct. Link: http://lkml.kernel.org/r/20181010021344.60433-1-richard.weiyang@gmail.com Signed-off-by: Wei Yang <richard.weiyang@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31lib/sg_pool.c: remove unnecessary null check when freeing objectzhong jiang
mempool_destroy(NULL) and kmem_cache_destroy(NULL) are legal Link: http://lkml.kernel.org/r/1533054107-35657-1-git-send-email-zhongjiang@huawei.com Signed-off-by: zhong jiang <zhongjiang@huawei.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31lib/zlib_inflate/inflate.c: remove fall through warningsCorentin Labbe
This patch remove all following fall through warnings by adding /* fall through */ markers. Note that we cannot add "__attribute__ ((fallthrough));" due to it is GCC7 only arch/arm/boot/compressed/../../../../lib/zlib_inflate/inflate.c:384:25: warning: this statement may fall through [-Wimplicit-fallthrough=] arch/arm/boot/compressed/../../../../lib/zlib_inflate/inflate.c:391:25: warning: this statement may fall through [-Wimplicit-fallthrough=] arch/arm/boot/compressed/../../../../lib/zlib_inflate/inflate.c:393:16: warning: this statement may fall through [-Wimplicit-fallthrough=] arch/arm/boot/compressed/../../../../lib/zlib_inflate/inflate.c:430:25: warning: this statement may fall through [-Wimplicit-fallthrough=] arch/arm/boot/compressed/../../../../lib/zlib_inflate/inflate.c:556:25: warning: this statement may fall through [-Wimplicit-fallthrough=] arch/arm/boot/compressed/../../../../lib/zlib_inflate/inflate.c:595:25: warning: this statement may fall through [-Wimplicit-fallthrough=] arch/arm/boot/compressed/../../../../lib/zlib_inflate/inflate.c:602:25: warning: this statement may fall through [-Wimplicit-fallthrough=] arch/arm/boot/compressed/../../../../lib/zlib_inflate/inflate.c:627:25: warning: this statement may fall through [-Wimplicit-fallthrough=] arch/arm/boot/compressed/../../../../lib/zlib_inflate/inflate.c:646:25: warning: this statement may fall through [-Wimplicit-fallthrough=] arch/arm/boot/compressed/../../../../lib/zlib_inflate/inflate.c:696:25: warning: this statement may fall through [-Wimplicit-fallthrough=] It is easy to see that thoses fall through are needed since in each case state->mode are set to the case value just below. Link: http://lkml.kernel.org/r/1536215920-19955-1-git-send-email-clabbe@baylibre.com Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31lib/parser.c: switch match_number() over to use match_strdup()Eric Biggers
This simplifies the code. No change in behavior. Link: http://lkml.kernel.org/r/20180830194727.191555-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31lib/parser.c: switch match_u64int() over to use match_strdup()Eric Biggers
This simplifies the code. No change in behavior. Link: http://lkml.kernel.org/r/20180830194814.192880-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31lib/parser.c: switch match_strdup() over to use kmemdup_nul()Eric Biggers
This simplifies the code. No change in behavior. Link: http://lkml.kernel.org/r/20180830194436.188867-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31lib/bitmap.c: simplify bitmap_print_to_pagebuf()Rasmus Villemoes
len is guaranteed to lie in [1, PAGE_SIZE]. If scnprintf is called with a buffer size of 1, it is guaranteed to return 0. So in the extremely unlikely case of having just one byte remaining in the page, let's just call scnprintf anyway. The only difference is that this will write a '\0' to that final byte in the page, but that's an improvement: We now guarantee that after the call, buf is a properly terminated C string of length exactly the return value. Link: http://lkml.kernel.org/r/20180818131623.8755-8-linux@rasmusvillemoes.dk Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Yury Norov <ynorov@caviumnetworks.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31lib/bitmap.c: fix remaining space computation in bitmap_print_to_pagebufRasmus Villemoes
For various alignments of buf, the current expression computes 4096 ok 4095 ok 8190 8189 ... 4097 i.e., if the caller has already written two bytes into the page buffer, len is 8190 rather than 4094, because PTR_ALIGN aligns up to the next boundary. So if the printed version of the bitmap is huge, scnprintf() ends up writing beyond the page boundary. I don't think any current callers actually write anything before bitmap_print_to_pagebuf, but the API seems to be designed to allow it. [akpm@linux-foundation.org: use offset_in_page(), per Andy] [akpm@linux-foundation.org: include mm.h for offset_in_page()] Link: http://lkml.kernel.org/r/20180818131623.8755-7-linux@rasmusvillemoes.dk Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Yury Norov <ynorov@caviumnetworks.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31linux/bitmap.h: relax comment on compile-time constant nbitsRasmus Villemoes
It's not clear what's so horrible about emitting a function call to handle a run-time sized bitmap. Moreover, gcc also emits a function call for a compile-time-constant-but-huge nbits, so the comment isn't even accurate. Link: http://lkml.kernel.org/r/20180818131623.8755-6-linux@rasmusvillemoes.dk Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Yury Norov <ynorov@caviumnetworks.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31linux/bitmap.h: fix type of nbits in bitmap_shift_right()Rasmus Villemoes
Most other bitmap API, including the OOL version __bitmap_shift_right, take unsigned nbits. This was accidentally left out from 2fbad29917c98. Link: http://lkml.kernel.org/r/20180818131623.8755-5-linux@rasmusvillemoes.dk Fixes: 2fbad29917c98 ("lib: bitmap: change bitmap_shift_right to take unsigned parameters") Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reported-by: Yury Norov <ynorov@caviumnetworks.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31linux/bitmap.h: remove redundant uses of small_const_nbits()Rasmus Villemoes
In the _zero, _fill and _copy functions, the small_const_nbits branch is redundant. If nbits is small and const, gcc knows full well that BITS_TO_LONGS(nbits) is 1, so len is also a compile-time constant (sizeof(long)), and calling memset or memcpy with a length argument of sizeof(long) makes gcc generate the expected code anyway: #include <string.h> void a(unsigned long *x) { memset(x, 0, 8); } void b(unsigned long *x) { memset(x, 0xff, 8); } void c(unsigned long *x, const unsigned long *y) { memcpy(x, y, 8); } turns into 0000000000000000 <a>: 0: 48 c7 07 00 00 00 00 movq $0x0,(%rdi) 7: c3 retq 8: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) f: 00 0000000000000010 <b>: 10: 48 c7 07 ff ff ff ff movq $0xffffffffffffffff,(%rdi) 17: c3 retq 18: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 1f: 00 0000000000000020 <c>: 20: 48 8b 06 mov (%rsi),%rax 23: 48 89 07 mov %rax,(%rdi) 26: c3 retq Link: http://lkml.kernel.org/r/20180818131623.8755-4-linux@rasmusvillemoes.dk Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Yury Norov <ynorov@caviumnetworks.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31linux/bitmap.h: handle constant zero-size bitmaps correctlyRasmus Villemoes
The static inlines in bitmap.h do not handle a compile-time constant nbits==0 correctly (they dereference the passed src or dst pointers, despite only 0 words being valid to access). I had the 0-day buildbot chew on a patch [1] that would cause build failures for such cases without complaining, suggesting that we don't have any such users currently, at least for the 70 .config/arch combinations that was built. Should any turn up, make sure they use the out-of-line versions, which do handle nbits==0 correctly. This is of course not the most efficient, but it's much less churn than teaching all the static inlines an "if (zero_const_nbits())", and since we don't have any current instances, this doesn't affect existing code at all. [1] lkml.kernel.org/r/20180815085539.27485-1-linux@rasmusvillemoes.dk Link: http://lkml.kernel.org/r/20180818131623.8755-3-linux@rasmusvillemoes.dk Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Yury Norov <ynorov@caviumnetworks.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31lib/bitmap.c: remove wrong documentationRasmus Villemoes
This promise is violated in a number of places, e.g. already in the second function below this paragraph. Since I don't think anybody relies on this being true, and since actually honouring it would hurt performance and code size in various places, just remove the paragraph. Link: http://lkml.kernel.org/r/20180818131623.8755-2-linux@rasmusvillemoes.dk Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Yury Norov <ynorov@caviumnetworks.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31kernel/fail_function.c: remove meaningless null pointer check before ↵zhong jiang
debugfs_remove_recursive debugfs_remove_recursive() has taken the null pointer into account. just remove the null check before debugfs_remove_recursive(). Link: http://lkml.kernel.org/r/1537494404-16473-1-git-send-email-zhongjiang@huawei.com Signed-off-by: zhong jiang <zhongjiang@huawei.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Kees Cook <keescook@chromium.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31treewide: remove current_text_addrNick Desaulniers
Prefer _THIS_IP_ defined in linux/kernel.h. Most definitions of current_text_addr were the same as _THIS_IP_, but a few archs had inline assembly instead. This patch removes the final call site of current_text_addr, making all of the definitions dead code. [akpm@linux-foundation.org: fix arch/csky/include/asm/processor.h] Link: http://lkml.kernel.org/r/20180911182413.180715-1-ndesaulniers@google.com Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31.mailmap: add Oleksij RempelOleksij Rempel
I have had various email addresses and a name change after marriage. Link: http://lkml.kernel.org/r/20181009125207.6096-1-o.rempel@pengutronix.de Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Cc: Jiri Kosina <trivial@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31fs/proc/vmcore.c: Convert to use vmf_error()Souptick Joarder
This code can be replaced with vmf_error() inline function. Link: http://lkml.kernel.org/r/20180918145945.GA11392@jordon-HP-15-Notebook-PC Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Reviewed-by: Matthew Wilcox <willy@infradead.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31mm/gup_benchmark.c: prevent integer overflow in ioctlDan Carpenter
The concern here is that "gup->size" is a u64 and "nr_pages" is unsigned long. On 32 bit systems we could trick the kernel into allocating fewer pages than expected. Link: http://lkml.kernel.org/r/20181025061546.hnhkv33diogf2uis@kili.mountain Fixes: 64c349f4ae78 ("mm: add infrastructure for get_user_pages_fast() benchmarking") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Keith Busch <keith.busch@intel.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31mm/hmm: invalidate device page table at start of invalidationJérôme Glisse
Invalidate device page table at start of invalidation and invalidate in progress CPU page table snapshooting at both start and end of any invalidation. This is helpful when device need to dirty page because the device page table report the page as dirty. Dirtying page must happen in the start mmu notifier callback and not in the end one. Link: http://lkml.kernel.org/r/20181019160442.18723-7-jglisse@redhat.com Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31mm/hmm: use a structure for update callback parametersJérôme Glisse
Use a structure to gather all the parameters for the update callback. This make it easier when adding new parameters by avoiding having to update all callback function signature. The hmm_update structure is always associated with a mmu_notifier callbacks so we are not planing on grouping multiple updates together. Nor do we care about page size for the range as range will over fully cover the page being invalidated (this is a mmu_notifier property). Link: http://lkml.kernel.org/r/20181019160442.18723-6-jglisse@redhat.com Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31mm/hmm: properly handle migration pmdJérôme Glisse
Before this patch migration pmd entry (!pmd_present()) would have been treated as a bad entry (pmd_bad() returns true on migration pmd entry). The outcome was that device driver would believe that the range covered by the pmd was bad and would either SIGBUS or simply kill all the device's threads (each device driver decide how to react when the device tries to access poisonnous or invalid range of memory). This patch explicitly handle the case of migration pmd entry which are non present pmd entry and either wait for the migration to finish or report empty range (when device is just trying to pre- fill a range of virtual address and thus do not want to wait or trigger page fault). Link: http://lkml.kernel.org/r/20181019160442.18723-5-jglisse@redhat.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Zi Yan <zi.yan@cs.rutgers.edu> Cc: Michal Hocko <mhocko@kernel.org> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31mm/hmm: fix race between hmm_mirror_unregister() and mmu_notifier callbackRalph Campbell
In hmm_mirror_unregister(), mm->hmm is set to NULL and then mmu_notifier_unregister_no_release() is called. That creates a small window where mmu_notifier can call mmu_notifier_ops with mm->hmm equal to NULL. Fix this by first unregistering mmu notifier callbacks and then setting mm->hmm to NULL. Similarly in hmm_register(), set mm->hmm before registering mmu_notifier callbacks so callback functions always see mm->hmm set. Link: http://lkml.kernel.org/r/20181019160442.18723-4-jglisse@redhat.com Signed-off-by: Ralph Campbell <rcampbell@nvidia.com> Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Balbir Singh <bsingharora@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31mm/rmap: map_pte() was not handling private ZONE_DEVICE page properlyRalph Campbell
Private ZONE_DEVICE pages use a special pte entry and thus are not present. Properly handle this case in map_pte(), it is already handled in check_pte(), the map_pte() part was lost in some rebase most probably. Without this patch the slow migration path can not migrate back to any private ZONE_DEVICE memory to regular memory. This was found after stress testing migration back to system memory. This ultimatly can lead to the CPU constantly page fault looping on the special swap entry. Link: http://lkml.kernel.org/r/20181019160442.18723-3-jglisse@redhat.com Signed-off-by: Ralph Campbell <rcampbell@nvidia.com> Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Balbir Singh <bsingharora@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31mm/hmm: fix utf8 ...Jérôme Glisse
Patch series "HMM updates, improvements and fixes", v2 Few fixes that only affect HMM users. Improve the synchronization call back so that we match was other mmu_notifier listener do and add proper support to the new blockable flags in the process. For curious folks here are branches to leverage HMM in various existing device drivers: https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-nouveau-v01 https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-radeon-v00 https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-intel-v00 More to come (amd gpu, Mellanox, ...) I expect more of the preparatory work for nouveau will be merge in 4.20 (like we have been doing since 4.16) and i will wait until this patchset is upstream before pushing the patches that actualy make use of HMM (to avoid complex tree inter-dependency). This patch (of 6): Somehow utf=8 must have been broken. Link: http://lkml.kernel.org/r/20181019160442.18723-2-jglisse@redhat.com Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-30Merge tag 'trace-v4.20' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "The biggest change here is the updates to kprobes Back in January I posted patches to create function based events. These were the events that you suggested I make to allow developers to easily create events in code where no trace event exists. After posting those changes for review, it was suggested that we implement this instead with kprobes. The problem with kprobes is that the interface is too complex and needs to be simplified. Masami Hiramatsu posted patches in March and I've been playing with them a bit. There's been a bit of clean up in the kprobe code that was inspired by the function based event patches, and a couple of enhancements to the kprobe event interface. - If the arch supports it (we added support for x86), you can place a kprobe event at the start of a function and use $arg1, $arg2, etc to reference the arguments of a function. (Before you needed to know what register or where on the stack the argument was). - The second is a way to see array of events. For example, if you reference a mac address, you can add: echo 'p:mac ip_rcv perm_addr=+574($arg2):x8[6]' > kprobe_events And this will produce: mac: (ip_rcv+0x0/0x140) perm_addr={0x52,0x54,0x0,0xc0,0x76,0xec} Other changes include - Exporting trace_dump_stack to modules - Have the stack tracer trace the entire stack (stop trying to remove tracing itself, as we keep removing too much). - Added support for SDT in uprobes" [ SDT - "Statically Defined Tracing" are userspace markers for tracing. Let's not use random TLA's in explanations unless they are fairly well-established as generic (at least for kernel people) - Linus ] * tag 'trace-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (24 commits) tracing: Have stack tracer trace full stack tracing: Export trace_dump_stack to modules tracing: probeevent: Fix uninitialized used of offset in parse args tracing/kprobes: Allow kprobe-events to record module symbol tracing/kprobes: Check the probe on unloaded module correctly tracing/uprobes: Fix to return -EFAULT if copy_from_user failed tracing: probeevent: Add $argN for accessing function args x86: ptrace: Add function argument access API tracing: probeevent: Add array type support tracing: probeevent: Add symbol type tracing: probeevent: Unify fetch_insn processing common part tracing: probeevent: Append traceprobe_ for exported function tracing: probeevent: Return consumed bytes of dynamic area tracing: probeevent: Unify fetch type tables tracing: probeevent: Introduce new argument fetching code tracing: probeevent: Remove NOKPROBE_SYMBOL from print functions tracing: probeevent: Cleanup argument field definition tracing: probeevent: Cleanup print argument functions trace_uprobe: support reference counter in fd-based uprobe perf probe: Support SDT markers having reference counter (semaphore) ...
2018-10-30Merge tag 'trace-v4.19-rc8-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "Masami had a couple more fixes to the synthetic events. One was a proper error return value, and the other is for the self tests" * tag 'trace-v4.19-rc8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: selftests/ftrace: Fix synthetic event test to delete event correctly tracing: Return -ENOENT if there is no target synthetic event
2018-10-30Merge tag 'for-linus-4.20a-rc1-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: "Only several small fixes and cleanups this time" * tag 'for-linus-4.20a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: drop writing error messages to xenstore xen/pvh: don't try to unplug emulated devices add myself as reviewer for Xen support in Linux xen: remove redundant 'default n' from Kconfig xen/balloon: Support xend-based toolstack xen/pvh: increase early stack size xen: make xen_qlock_wait() nestable xen: fix race in xen_qlock_wait() xen/balloon: Grammar s/Is it/It is/ xen: Make XEN_BACKEND selectable by DomU
2018-10-30Merge tag 'acpi-4.20-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "Rework the handling of the P-unit semaphore on Intel Baytrail and Cherrytrail systems to avoid race conditions and excessive overhead related to it (Hans de Goede)" * tag 'acpi-4.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / PMIC: xpower: Add depends on IOSF_MBI to Kconfig entry i2c: designware: Cleanup bus lock handling ACPI / PMIC: xpower: Block P-Unit I2C access during read-modify-write x86: baytrail/cherrytrail: Rework and move P-Unit PMIC bus semaphore code
2018-10-30Merge tag 'pm-4.20-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "These remove a questionable heuristic from the menu cpuidle governor, fix a recent build regression in the intel_pstate driver, clean up ARM big-Little support in cpufreq and fix up hung task watchdog's interaction with system-wide power management transitions. Specifics: - Fix build regression in the intel_pstate driver that doesn't build without CONFIG_ACPI after recent changes (Dominik Brodowski). - One of the heuristics in the menu cpuidle governor is based on a function returning 0 most of the time, so drop it and clean up the scheduler code related to it (Daniel Lezcano). - Prevent the arm_big_little cpufreq driver from being used on ARM64 which is not suitable for it and drop the arm_big_little_dt driver that is not used any more (Sudeep Holla). - Prevent the hung task watchdog from triggering during resume from system-wide sleep states by disabling it before freezing tasks and enabling it again after they have been thawed (Vitaly Kuznetsov)" * tag 'pm-4.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: kernel: hung_task.c: disable on suspend cpufreq: remove unused arm_big_little_dt driver cpufreq: drop ARM_BIG_LITTLE_CPUFREQ support for ARM64 cpufreq: intel_pstate: Fix compilation for !CONFIG_ACPI cpuidle: menu: Remove get_loadavg() from the performance multiplier sched: Factor out nr_iowait and nr_iowait_cpu
2018-10-30Merge tag 'for-4.20-part2-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull more btrfs updates from David Sterba: "This contains a few minor updates and fixes that were under testing or arrived shortly after the merge window freeze, mostly stable material" * tag 'for-4.20-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: Btrfs: fix use-after-free when dumping free space Btrfs: fix use-after-free during inode eviction btrfs: move the dio_sem higher up the callchain btrfs: don't run delayed_iputs in commit btrfs: fix insert_reserved error handling btrfs: only free reserved extent if we didn't insert it btrfs: don't use ctl->free_space for max_extent_size btrfs: set max_extent_size properly btrfs: reset max_extent_size properly MAINTAINERS: update my email address for btrfs btrfs: delayed-ref: extract find_first_ref_head from find_ref_head Btrfs: fix deadlock when writing out free space caches Btrfs: fix assertion on fsync of regular file when using no-holes feature Btrfs: fix null pointer dereference on compressed write path error
2018-10-30Merge branches 'pm-cpuidle' and 'pm-cpufreq'Rafael J. Wysocki
* pm-cpuidle: cpuidle: menu: Remove get_loadavg() from the performance multiplier sched: Factor out nr_iowait and nr_iowait_cpu * pm-cpufreq: cpufreq: remove unused arm_big_little_dt driver cpufreq: drop ARM_BIG_LITTLE_CPUFREQ support for ARM64 cpufreq: intel_pstate: Fix compilation for !CONFIG_ACPI
2018-10-29Merge tag 'rpmsg-v4.20' of git://github.com/andersson/remoteprocLinus Torvalds
Pull rpmsg updates from Bjorn Andersson: "This migrates rpmsg_char to use read/write_iter to allow being operated using aio, removes the message size alignment requirements from glink, closes a potential memory leak in SMD and switches to %pOFn for printing device_node names" * tag 'rpmsg-v4.20' of git://github.com/andersson/remoteproc: rpmsg: glink: smem: Support rx peak for size less than 4 bytes rpmsg: smd: fix memory leak on channel create rpmsg: glink: Remove chunk size word align warning rpmsg: Convert to using %pOFn instead of device_node.name rpmsg: char: Migrate to iter versions of read and write
2018-10-29Merge tag 'rproc-v4.20' of git://github.com/andersson/remoteprocLinus Torvalds
Pull remoteproc updates from Bjorn Andersson: "This contains a series of patches that reworks the memory carveout handling in remoteproc, in order to allow this to be reused for statically allocated memory regions to be used for e.g. firmware. It adds support for audio DSP (both TZ-assisted and non-TZ assisted) and compute DSP on Qualcomm SDM845, TZ-assisted audio DSP, compute DSP and WiFi processor on Qualcomm QCS404 and through some renaming of the drivers cleans up the naming situation. Finally support for custom coreudmp segment handlers is added and is used in the Qualcomm modem remoteproc driver to gather memory dumps of the firmware" * tag 'rproc-v4.20' of git://github.com/andersson/remoteproc: (36 commits) remoteproc: qcom: q6v5-mss: Register segments/dumpfn for coredump remoteproc: qcom: q6v5-mss: Add custom dump function for modem remoteproc: qcom: q6v5-mss: Refactor mba load/unload sequence remoteproc: Add mechanism for custom dump function assignment remoteproc: Introduce custom dump function for each remoteproc segment remoteproc: modify vring allocation to rely on centralized carveout allocator remoteproc: qcom: q6v5: shore up resource probe handling remoteproc: qcom: qcom_q6v5_adsp: Fix some return value check remoteproc: modify rproc_handle_carveout to support pre-registered region remoteproc: add helper function to check carveout device address remoteproc: add helper function to allocate rproc_mem_entry from reserved memory remoteproc: add alloc ops in rproc_mem_entry struct remoteproc: introduce rproc_find_carveout_by_name function remoteproc: introduce rproc_add_carveout function remoteproc: add helper function to allocate and init rproc_mem_entry struct remoteproc: add name in rproc_mem_entry struct remoteproc: add release ops in rproc_mem_entry struct remoteproc: add rproc_va_to_pa function remoteproc: configure IOMMU only if device address requested remoteproc: qcom: q6v5-mss: add SCM probe dependency ...
2018-10-29Merge tag 'armsoc-soc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "A couple of platforms change hands in the MAINTAINERS file: - Linus Walleij lists himself for the ARM Reference platforms: versatile, vexpress, integrator and realview. He has been the main contributor for these for a while, and makes it official now. - Vladimir Zapolskiy takes over the LPC18xx platform from Joachim Eastwood - Manivannan Sadhasivam becomes a secondary maintainer for the Actions Semi machines - Nicolas Ferre lists updates the MAINTAINER listing for the AT91 platform: Ludovic Desroches is now a co-maintainer for the platform, and several other people (Claudiu Beznea, Cristian Birsan, Eugen Hristev, Codrin Ciubotariu) take over individual device drivers. Thanks everyone for working on this, and welcome to the new maintainers! The "virt" platform on qemy or kvm can now be used in big-endian mode without additional tricks, thanks to Jason Donenfeld. Once again, we gain support for another NXP i.MX6 variant, this time it's the i.MX 6ULZ 32-bit single-core version. On arm64, we add support for two SoCs from Renesas: RZ/G2E (r8a774c0) and RZ/G2M (r8a774a1). These are described as microcontrollers on the manufacturer website, but appear to be rather powerful. The RZ/G2M is used on the reference board for the CIP Super Long Term Support (SLTS) Linux Kernels" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits) MAINTAINERS: Assign myself as a maintainer of ARM/LPC18XX architecture arm64: exynos: Enable generic power domain support MAINTAINERS: remove non-exsiting email address of Baoyou MAINTAINERS: fix pattern in ARM/Synaptics berlin SoC section MAINTAINERS: Drop dt-bindings/genpd/k2g.h ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platforms arm64: actions: Enable PINCTRL in platforms Kconfig MAINTAINERS: Add entry for Actions Semi Owl SoCs DMA driver MAINTAINERS: Add entry for Actions Semiconductor Owl I2C driver MAINTAINERS: Update clock binding entry for Actions Semi Owl SoCs ARM: imx: add i.mx6ulz msl support ARM: Assume maintainership of ARM reference designs ARM: support big-endian for the virt architecture MAINTAINERS: sdhci: move the Microchip entry to proper location MAINTAINERS: move former ATMEL entries to proper MICROCHIP location MAINTAINERS: remove the / ATMEL string from MICROCHIP entries MAINTAINERS: iio: add co-maintainer to SAMA5D2-compatible ADC driver MAINTAINERS: pwm: add entry for Microchip pwm driver MAINTAINERS: dmaengine: add files to Microchip dma entry MAINTAINERS: USB: change maintainer for Microchip USBA gadget driver ...
2018-10-29Merge tag 'armsoc-drivers' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "The most noteworthy SoC driver changes this time include: - The TEE subsystem gains an in-kernel interface to access the TEE from device drivers. - The reset controller subsystem gains a driver for the Qualcomm Snapdragon 845 Power Domain Controller. - The Xilinx Zynq platform now has a firmware interface for its platform management unit. This contains a firmware "ioctl" interface that was a little controversial at first, but the version we merged solved that by not exposing arbitrary firmware calls to user space. - The Amlogic Meson platform gains a "canvas" driver that is used for video processing and shared between different high-level drivers. The rest is more of the usual, mostly related to SoC specific power management support and core drivers in drivers/soc: - Several Renesas SoCs (RZ/G1N, RZ/G2M, R-Car V3M, RZ/A2M) gain new features related to power and reset control. - The Mediatek mt8183 and mt6765 SoC platforms gain support for their respective power management chips. - A new driver for NXP i.MX8, which need a firmware interface for power management. - The SCPI firmware interface now contains support estimating power usage of performance states - The NVIDIA Tegra "pmc" driver gains a few new features, in particular a pinctrl interface for configuring the pads. - Lots of small changes for Qualcomm, in particular the "smem" device driver. - Some cleanups for the TI OMAP series related to their sysc controller. Additional cleanups and bugfixes in SoC specific drivers include the Meson, Keystone, NXP, AT91, Sunxi, Actions, and Tegra platforms" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (129 commits) firmware: tegra: bpmp: Implement suspend/resume support drivers: clk: Add ZynqMP clock driver dt-bindings: clock: Add bindings for ZynqMP clock driver firmware: xilinx: Add zynqmp IOCTL API for device control Documentation: xilinx: Add documentation for eemi APIs MAINTAINERS: imx: include drivers/firmware/imx path firmware: imx: add misc svc support firmware: imx: add SCU firmware driver support reset: Fix potential use-after-free in __of_reset_control_get() dt-bindings: arm: fsl: add scu binding doc soc: fsl: qbman: add interrupt coalesce changing APIs soc: fsl: bman_portals: defer probe after bman's probe soc: fsl: qbman: Use last response to determine valid bit soc: fsl: qbman: Add 64 bit DMA addressing requirement to QBMan soc: fsl: qbman: replace CPU 0 with any online CPU in hotplug handlers soc: fsl: qbman: Check if CPU is offline when initializing portals reset: qcom: PDC Global (Power Domain Controller) reset controller dt-bindings: reset: Add PDC Global binding for SDM845 SoCs reset: Grammar s/more then once/more than once/ bus: ti-sysc: Just use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS ...
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