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2018-04-17x86: Remove pci-nommu.cChristoph Hellwig1-90/+0
The commit that switched x86 to dma_direct_ops stopped using and building this file, but accidentally left it in the tree. Remove it. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected]
2018-04-17powerpc/64s: Default l1d_size to 64K in RFI fallback flushMadhavan Srinivasan1-0/+11
If there is no d-cache-size property in the device tree, l1d_size could be zero. We don't actually expect that to happen, it's only been seen on mambo (simulator) in some configurations. A zero-size l1d_size leads to the loop in the asm wrapping around to 2^64-1, and then walking off the end of the fallback area and eventually causing a page fault which is fatal. Just default to 64K which is correct on some CPUs, and sane enough to not cause a crash on others. Fixes: aa8a5e0062ac9 ('powerpc/64s: Add support for RFI flush of L1-D cache') Signed-off-by: Madhavan Srinivasan <[email protected]> [mpe: Rewrite comment and change log] Signed-off-by: Michael Ellerman <[email protected]>
2018-04-17s390/signal: cleanup uapi struct sigactionMartin Schwidefsky1-7/+16
The struct sigaction for user space in arch/s390/include/uapi/asm/signal.h is ill defined. The kernel uses two structures 'struct sigaction' and 'struct old_sigaction', the correlation in the kernel for both 31 and 64 bit is as follows sys_sigaction -> struct old_sigaction sys_rt_sigaction -> struct sigaction The correlation of the (single) uapi definition for 'struct sigaction' under '#ifndef __KERNEL__': 31-bit: sys_sigaction -> uapi struct sigaction 31-bit: sys_rt_sigaction -> no structure available 64-bit: sys_sigaction -> no structure available 64-bit: sys_rt_sigaction -> uapi struct sigaction This is quite confusing. To make it a bit less confusing make the uapi definition of 'struct sigaction' usable for sys_rt_sigaction for both 31-bit and 64-bit. Signed-off-by: Martin Schwidefsky <[email protected]>
2018-04-17objtool: Support HOSTCFLAGS and HOSTLDFLAGSLaura Abbott1-2/+2
It may be useful to compile host programs with different flags (e.g. hardening). Ensure that objtool picks up the appropriate flags. Signed-off-by: Laura Abbott <[email protected]> Signed-off-by: Josh Poimboeuf <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/05a360681176f1423cb2fde8faae3a0a0261afc5.1523560825.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <[email protected]>
2018-04-17drm/exynos: exynos_drm_fb -> drm_framebufferDaniel Stone1-20/+8
Now exynos_drm_fb is just an empty wrapper around drm_framebuffer, we can drop it. Signed-off-by: Daniel Stone <[email protected]> Signed-off-by: Inki Dae <[email protected]> Cc: Inki Dae <[email protected]> Cc: Joonyoung Shim <[email protected]> Cc: Seung-Woo Kim <[email protected]> Cc: Kyungmin Park <[email protected]>
2018-04-17drm/exynos: Move dma_addr out of exynos_drm_fbDaniel Stone1-5/+3
This can be calculated from the GEM BO DMA address as well as the offset stored in the base framebuffer. Signed-off-by: Daniel Stone <[email protected]> Signed-off-by: Inki Dae <[email protected]> Cc: Inki Dae <[email protected]> Cc: Joonyoung Shim <[email protected]> Cc: Seung-Woo Kim <[email protected]> Cc: Kyungmin Park <[email protected]>
2018-04-17drm/exynos: Move GEM BOs to drm_framebufferDaniel Stone1-35/+4
Since drm_framebuffer can now store GEM objects directly, place them there rather than in our own subclass. As this makes the framebuffer create_handle and destroy functions the same as the GEM framebuffer helper, we can reuse those. Signed-off-by: Daniel Stone <[email protected]> Signed-off-by: Inki Dae <[email protected]> Cc: Inki Dae <[email protected]> Cc: Joonyoung Shim <[email protected]> Cc: Seung-Woo Kim <[email protected]> Cc: Kyungmin Park <[email protected]>
2018-04-17trace_kprobe: Remove warning message "Could not insert probe at..."Song Liu1-2/+0
This warning message is not very helpful, as the return value should already show information about the error. Also, this message will spam dmesg if the user space does testing in a loop, like: for x in {0..5} do echo p:xx xx+$x >> /sys/kernel/debug/tracing/kprobe_events done Reported-by: Vince Weaver <[email protected]> Signed-off-by: Song Liu <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2018-04-16textsearch: fix kernel-doc warnings and add kernel-api sectionRandy Dunlap3-19/+38
Make lib/textsearch.c usable as kernel-doc. Add textsearch() function family to kernel-api documentation. Fix kernel-doc warnings in <linux/textsearch.h>: ../include/linux/textsearch.h:65: warning: Incorrect use of kernel-doc format: * get_next_block - fetch next block of data ../include/linux/textsearch.h:82: warning: Incorrect use of kernel-doc format: * finish - finalize/clean a series of get_next_block() calls Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2018-04-16Merge branch 'tipc-Better-check-user-provided-attributes'David S. Miller2-1/+6
Eric Dumazet says: ==================== tipc: Better check user provided attributes syzbot reported a crash in __tipc_nl_net_set() While fixing it, I also had to fix an old bug involving TIPC_NLA_NET_ADDR ==================== Acked-by: Jon Maloy <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2018-04-16tipc: fix possible crash in __tipc_nl_net_set()Eric Dumazet2-0/+4
syzbot reported a crash in __tipc_nl_net_set() caused by NULL dereference. We need to check that both TIPC_NLA_NET_NODEID and TIPC_NLA_NET_NODEID_W1 are present. We also need to make sure userland provided u64 attributes. Fixes: d50ccc2d3909 ("tipc: add 128-bit node identifier") Signed-off-by: Eric Dumazet <[email protected]> Cc: Jon Maloy <[email protected]> Cc: Ying Xue <[email protected]> Reported-by: syzbot <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2018-04-16tipc: add policy for TIPC_NLA_NET_ADDREric Dumazet1-1/+2
Before syzbot/KMSAN bites, add the missing policy for TIPC_NLA_NET_ADDR Fixes: 27c21416727a ("tipc: add net set to new netlink api") Signed-off-by: Eric Dumazet <[email protected]> Cc: Jon Maloy <[email protected]> Cc: Ying Xue <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2018-04-16Merge branch 'parisc-4.17-3' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc build fix from Helge Deller: "Fix build error because of missing binfmt_elf32.o file which is still mentioned in the Makefile" * 'parisc-4.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix missing binfmt_elf32.o build error
2018-04-16Docs: tell maintainers to put [GIT PULL] in their subject linesMatthew Wilcox1-1/+1
It seems that Linus looks for [GIT PULL] in subject lines to ensure that pull requests don't get buried in the noise during merge windows. Update the docs to reflect that. [jc: From an impromptu post from willy, thus no SOB] Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16Documentation: typec.rst: Use literal-block element with ascii artHeikki Krogerus1-1/+1
Using reStructuredText literal-block element with ascii-art. That prevents the ascii art from being processed as reStructuredText. Reported-by: Masanari Iida <[email protected]> Reviewed-and-tested-by: Jani Nikula <[email protected]> Fixes: bdecb33af34f ("usb: typec: API for controlling USB Type-C Multiplexers") Signed-off-by: Heikki Krogerus <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16MIPS: memset.S: EVA & fault support for small_memsetMatt Redfearn1-1/+6
The MIPS kernel memset / bzero implementation includes a small_memset branch which is used when the region to be set is smaller than a long (4 bytes on 32bit, 8 bytes on 64bit). The current small_memset implementation uses a simple store byte loop to write the destination. There are 2 issues with this implementation: 1. When EVA mode is active, user and kernel address spaces may overlap. Currently the use of the sb instruction means kernel mode addressing is always used and an intended write to userspace may actually overwrite some critical kernel data. 2. If the write triggers a page fault, for example by calling __clear_user(NULL, 2), instead of gracefully handling the fault, an OOPS is triggered. Fix these issues by replacing the sb instruction with the EX() macro, which will emit EVA compatible instuctions as required. Additionally implement a fault fixup for small_memset which sets a2 to the number of bytes that could not be cleared (as defined by __clear_user). Reported-by: Chuanhua Lei <[email protected]> Signed-off-by: Matt Redfearn <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/18975/ Signed-off-by: James Hogan <[email protected]>
2018-04-16Merge branch 'mm-rst' into docs-nextJonathan Corbet72-2211/+2610
Mike Rapoport says: These patches convert files in Documentation/vm to ReST format, add an initial index and link it to the top level documentation. There are no contents changes in the documentation, except few spelling fixes. The relatively large diffstat stems from the indentation and paragraph wrapping changes. I've tried to keep the formatting as consistent as possible, but I could miss some places that needed markup and add some markup where it was not necessary. [jc: significant conflicts in vm/hmm.rst]
2018-04-16docs/vm: add index.rst and link MM documentation to top level indexMike Rapoport3-1/+68
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: rename documentation files to .rstMike Rapoport63-87/+87
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: zswap.txt: convert to ReST formatMike Rapoport1-29/+42
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: zsmalloc.txt: convert to ReST formatMike Rapoport1-24/+36
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: z3fold.txt: convert to ReST formatMike Rapoport1-1/+5
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: userfaultfd.txt: convert to ReST formatMike Rapoport1-27/+39
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: unevictable-lru.txt: convert to ReST formatMike Rapoport1-68/+49
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: transhuge.txt: convert to ReST formatMike Rapoport1-120/+166
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: swap_numa.txt: convert to ReST formatMike Rapoport1-22/+33
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: split_page_table_lock: convert to ReST formatMike Rapoport1-3/+9
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: soft-dirty.txt: convert to ReST formatMike Rapoport1-8/+12
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: slub.txt: convert to ReST formatMike Rapoport1-169/+188
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: remap_file_pages.txt: conert to ReST formatMike Rapoport1-0/+6
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: page_owner: convert to ReST formatMike Rapoport1-13/+21
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: page_migration: convert to ReST formatMike Rapoport1-72/+77
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: pagemap.txt: convert to ReST formatMike Rapoport1-75/+89
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: numa: convert to ReST formatMike Rapoport1-0/+4
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: page_frags convert to ReST formatMike Rapoport1-1/+4
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: overcommit-accounting: convert to ReST formatMike Rapoport1-50/+57
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: numa_memory_policy.txt: convert to ReST formatMike Rapoport1-250/+283
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: mmu_notifier.txt: convert to ReST formatMike Rapoport1-51/+57
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: ksm.txt: convert to ReST formatMike Rapoport1-105/+110
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: idle_page_tracking.txt: convert to ReST formatMike Rapoport1-19/+36
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: hwpoison.txt: convert to ReST formatMike Rapoport1-71/+70
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: hugetlbfs_reserv.txt: convert to ReST formatMike Rapoport1-77/+135
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: hugetlbpage.txt: convert to ReST formatMike Rapoport1-104/+139
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: hmm.txt: convert to ReST formatMike Rapoport1-38/+28
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: highmem.txt: convert to ReST formatMike Rapoport1-51/+36
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: frontswap.txt: convert to ReST formatMike Rapoport1-22/+37
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: cleancache.txt: convert to ReST formatMike Rapoport1-43/+62
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: balance: convert to ReST formatMike Rapoport1-4/+11
Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16docs/vm: active_mm.txt convert to ReST formatMike Rapoport1-83/+91
Just add a label for cross-referencing and indent the text to make it ``literal`` Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-04-16Documentation: ftrace: clarify filters with dynamic ftrace and graphSteffen Maier1-1/+6
I fell into the trap of having set up function tracer with a very limited filter and then switched over to function_graph and was erroneously wondering why the latter did not trace what I expected, which was the full unabridged graph recursion. Signed-off-by: Steffen Maier <[email protected]> Reviewed-by: Steven Rostedt (VMware) <[email protected]> Cc: Ingo Molnar <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
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