kernel.git/arch/openrisc/kernel, branch linux-5.9.y

sched/idle: Fix arch_cpu_idle() vs tracing

2020-12-16T09:58:32Z

[ Upstream commit 58c644ba512cfbc2e39b758dd979edd1d6d00e27 ] We call arch_cpu_idle() with RCU disabled, but then use local_irq_{en,dis}able(), which invokes tracing, which relies on RCU. Switch all arch_cpu_idle() implementations to use raw_local_irq_{en,dis}able() and carefully manage the lockdep,rcu,tracing state like we do in entry. (XXX: we really should change arch_cpu_idle() to not return with interrupts enabled) Reported-by: Sven Schnelle Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Mark Rutland Tested-by: Mark Rutland Link: https://lkml.kernel.org/r/20201120114925.594122626@infradead.org Signed-off-by: Sasha Levin

Merge tag 'for-linus' of git://github.com/openrisc/linux

2020-09-12T20:03:49Z

Pull OpenRISC fixes from Stafford Horne: "Fixes for compile issues pointed out by kbuild and one bug I found in initrd with the 5.9 patches" * tag 'for-linus' of git://github.com/openrisc/linux: openrisc: Fix issue with get_user for 64-bit values openrisc: Fix cache API compile issue when not inlining openrisc: Reserve memblock for initrd

openrisc: Reserve memblock for initrd

2020-09-07T12:01:46Z

Recently OpenRISC added support for external initrd images, but I found some instability when using larger buildroot initrd images. It turned out that I forgot to reserve the memblock space for the initrd image. This patch fixes the instability issue by reserving memblock space. Fixes: ff6c923dbec3 ("openrisc: Add support for external initrd images") Signed-off-by: Stafford Horne Reviewed-by: Mike Rapoport

treewide: Use fallthrough pseudo-keyword

2020-08-23T22:36:59Z

Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva

Merge tag 'for-linus' of git://github.com/openrisc/linux

2020-08-14T21:04:53Z

Pull OpenRISC updates from Stafford Horne: "A few patches all over the place during this cycle, mostly bug and sparse warning fixes for OpenRISC, but a few enhancements too. Note, there are 2 non OpenRISC specific fixups. Non OpenRISC fixes: - In init we need to align the init_task correctly to fix an issue with MUTEX_FLAGS, reviewed by Peter Z. No one picked this up so I kept it on my tree. - In asm-generic/io.h I fixed up some sparse warnings, OK'd by Arnd. Arnd asked to merge it via my tree. OpenRISC fixes: - Many fixes for OpenRISC sprase warnings. - Add support OpenRISC SMP tlb flushing rather than always flushing the entire TLB on every CPU. - Fix bug when dumping stack via /proc/xxx/stack of user threads" * tag 'for-linus' of git://github.com/openrisc/linux: openrisc: uaccess: Add user address space check to access_ok openrisc: signal: Fix sparse address space warnings openrisc: uaccess: Remove unused macro __addr_ok openrisc: uaccess: Use static inline function in access_ok openrisc: uaccess: Fix sparse address space warnings openrisc: io: Fixup defines and move include to the end asm-generic/io.h: Fix sparse warnings on big-endian architectures openrisc: Implement proper SMP tlb flushing openrisc: Fix oops caused when dumping stack openrisc: Add support for external initrd images init: Align init_task to avoid conflict with MUTEX_FLAGS openrisc: fix __user in raw_copy_to_user()'s prototype

Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2020-08-09T20:33:54Z

Pull regset conversion fix from Al Viro: "Fix a regression from an unnoticed bisect hazard in the regset series. A bunch of old (aout, originally) primitives used by coredumps became dead code after fdpic conversion to regsets. Removal of that dead code had been the first commit in the followups to regset series; unfortunately, it happened to hide the bisect hazard on sh (extern for fpregs_get() had not been updated in the main series when it should have been; followup simply made fpregs_get() static). And without that followup commit this bisect hazard became breakage in the mainline" Tested-by: John Paul Adrian Glaubitz * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: kill unused dump_fpu() instances

openrisc: signal: Fix sparse address space warnings

2020-08-08T22:57:18Z

The __user annotations in signal.c were mostly missing. The missing annotations caused the warnings listed below. This patch fixes them up by adding the __user annotations. arch/openrisc/kernel/signal.c:71:38: warning: incorrect type in initializer (different address spaces) arch/openrisc/kernel/signal.c:71:38: expected struct rt_sigframe *frame arch/openrisc/kernel/signal.c:71:38: got struct rt_sigframe [noderef] __user * arch/openrisc/kernel/signal.c:82:14: warning: incorrect type in argument 1 (different address spaces) arch/openrisc/kernel/signal.c:82:14: expected void const volatile [noderef] __user * arch/openrisc/kernel/signal.c:82:14: got struct rt_sigframe *frame arch/openrisc/kernel/signal.c:84:37: warning: incorrect type in argument 2 (different address spaces) arch/openrisc/kernel/signal.c:84:37: expected void const [noderef] __user *from arch/openrisc/kernel/signal.c:84:37: got struct sigset_t * arch/openrisc/kernel/signal.c:89:39: warning: incorrect type in argument 2 (different address spaces) arch/openrisc/kernel/signal.c:89:39: expected struct sigcontext [noderef] __user *sc arch/openrisc/kernel/signal.c:89:39: got struct sigcontext * arch/openrisc/kernel/signal.c:92:31: warning: incorrect type in argument 1 (different address spaces) arch/openrisc/kernel/signal.c:92:31: expected struct sigaltstack const [noderef] [usertype] __user * arch/openrisc/kernel/signal.c:92:31: got struct sigaltstack * arch/openrisc/kernel/signal.c:158:15: warning: incorrect type in assignment (different address spaces) arch/openrisc/kernel/signal.c:158:15: expected struct rt_sigframe *frame arch/openrisc/kernel/signal.c:158:15: got void [noderef] __user * arch/openrisc/kernel/signal.c:160:14: warning: incorrect type in argument 1 (different address spaces) arch/openrisc/kernel/signal.c:160:14: expected void const volatile [noderef] __user * arch/openrisc/kernel/signal.c:160:14: got struct rt_sigframe *frame arch/openrisc/kernel/signal.c:165:46: warning: incorrect type in argument 1 (different address spaces) arch/openrisc/kernel/signal.c:165:46: expected struct siginfo [noderef] [usertype] __user *to arch/openrisc/kernel/signal.c:165:46: got struct siginfo * arch/openrisc/kernel/signal.c:170:33: warning: incorrect type in argument 1 (different address spaces) arch/openrisc/kernel/signal.c:170:33: expected struct sigaltstack [noderef] [usertype] __user * arch/openrisc/kernel/signal.c:170:33: got struct sigaltstack * arch/openrisc/kernel/signal.c:171:40: warning: incorrect type in argument 2 (different address spaces) arch/openrisc/kernel/signal.c:171:40: expected struct sigcontext [noderef] __user *sc arch/openrisc/kernel/signal.c:171:40: got struct sigcontext * arch/openrisc/kernel/signal.c:173:32: warning: incorrect type in argument 1 (different address spaces) arch/openrisc/kernel/signal.c:173:32: expected void [noderef] __user *to arch/openrisc/kernel/signal.c:173:32: got struct sigset_t * Signed-off-by: Stafford Horne Reviewed-by: Luc Van Oostenryck

Merge branch 'akpm' (patches from Andrew)

2020-08-07T18:39:33Z

Merge misc updates from Andrew Morton: - a few MM hotfixes - kthread, tools, scripts, ntfs and ocfs2 - some of MM Subsystems affected by this patch series: kthread, tools, scripts, ntfs, ocfs2 and mm (hofixes, pagealloc, slab-generic, slab, slub, kcsan, debug, pagecache, gup, swap, shmem, memcg, pagemap, mremap, mincore, sparsemem, vmalloc, kasan, pagealloc, hugetlb and vmscan). * emailed patches from Andrew Morton : (162 commits) mm: vmscan: consistent update to pgrefill mm/vmscan.c: fix typo khugepaged: khugepaged_test_exit() check mmget_still_valid() khugepaged: retract_page_tables() remember to test exit khugepaged: collapse_pte_mapped_thp() protect the pmd lock khugepaged: collapse_pte_mapped_thp() flush the right range mm/hugetlb: fix calculation of adjust_range_if_pmd_sharing_possible mm: thp: replace HTTP links with HTTPS ones mm/page_alloc: fix memalloc_nocma_{save/restore} APIs mm/page_alloc.c: skip setting nodemask when we are in interrupt mm/page_alloc: fallbacks at most has 3 elements mm/page_alloc: silence a KASAN false positive mm/page_alloc.c: remove unnecessary end_bitidx for [set|get]_pfnblock_flags_mask() mm/page_alloc.c: simplify pageblock bitmap access mm/page_alloc.c: extract the common part in pfn_to_bitidx() mm/page_alloc.c: replace the definition of NR_MIGRATETYPE_BITS with PB_migratetype_bits mm/shuffle: remove dynamic reconfiguration mm/memory_hotplug: document why shuffle_zone() is relevant mm/page_alloc: remove nr_free_pagecache_pages() mm: remove vm_total_pages ...

mm: remove unneeded includes of

2020-08-07T18:33:26Z

Patch series "mm: cleanup usage of " Most architectures have very similar versions of pXd_alloc_one() and pXd_free_one() for intermediate levels of page table. These patches add generic versions of these functions in and enable use of the generic functions where appropriate. In addition, functions declared and defined in headers are used mostly by core mm and early mm initialization in arch and there is no actual reason to have the included all over the place. The first patch in this series removes unneeded includes of In the end it didn't work out as neatly as I hoped and moving pXd_alloc_track() definitions to would require unnecessary changes to arches that have custom page table allocations, so I've decided to move lib/ioremap.c to mm/ and make pgalloc-track.h local to mm/. This patch (of 8): In most cases header is required only for allocations of page table memory. Most of the .c files that include that header do not use symbols declared in and do not require that header. As for the other header files that used to include , it is possible to move that include into the .c file that actually uses symbols from and drop the include from the header file. The process was somewhat automated using sed -i -E '/[<"]asm\/pgalloc\.h/d' \ $(grep -L -w -f /tmp/xx \ $(git grep -E -l '[<"]asm/pgalloc\.h')) where /tmp/xx contains all the symbols defined in arch/*/include/asm/pgalloc.h. [rppt@linux.ibm.com: fix powerpc warning] Signed-off-by: Mike Rapoport Signed-off-by: Andrew Morton Reviewed-by: Pekka Enberg Acked-by: Geert Uytterhoeven [m68k] Cc: Abdul Haleem Cc: Andy Lutomirski Cc: Arnd Bergmann Cc: Christophe Leroy Cc: Joerg Roedel Cc: Max Filippov Cc: Peter Zijlstra Cc: Satheesh Rajendran Cc: Stafford Horne Cc: Stephen Rothwell Cc: Steven Rostedt Cc: Joerg Roedel Cc: Matthew Wilcox Link: http://lkml.kernel.org/r/20200627143453.31835-1-rppt@kernel.org Link: http://lkml.kernel.org/r/20200627143453.31835-2-rppt@kernel.org Signed-off-by: Linus Torvalds

Merge branch 'work.regset' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2020-08-07T16:29:25Z

Pull ptrace regset updates from Al Viro: "Internal regset API changes: - regularize copy_regset_{to,from}_user() callers - switch to saner calling conventions for ->get() - kill user_regset_copyout() The ->put() side of things will have to wait for the next cycle, unfortunately. The balance is about -1KLoC and replacements for ->get() instances are a lot saner" * 'work.regset' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (41 commits) regset: kill user_regset_copyout{,_zero}() regset(): kill ->get_size() regset: kill ->get() csky: switch to ->regset_get() xtensa: switch to ->regset_get() parisc: switch to ->regset_get() nds32: switch to ->regset_get() nios2: switch to ->regset_get() hexagon: switch to ->regset_get() h8300: switch to ->regset_get() openrisc: switch to ->regset_get() riscv: switch to ->regset_get() c6x: switch to ->regset_get() ia64: switch to ->regset_get() arc: switch to ->regset_get() arm: switch to ->regset_get() sh: convert to ->regset_get() arm64: switch to ->regset_get() mips: switch to ->regset_get() sparc: switch to ->regset_get() ...