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2019-03-17kbuild: warn redundant generic-yMasahiro Yamada2-2/+0
The generic-y is redundant under the following condition: - arch has its own implementation - the same header is added to generated-y - the same header is added to mandatory-y If a redundant generic-y is found, the warning like follows is displayed: scripts/Makefile.asm-generic:20: redundant generic-y found in arch/arm/include/asm/Kbuild: timex.h I fixed up arch Kbuild files found by this. Suggested-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-13kbuild: move archive command to scripts/Makefile.libMasahiro Yamada1-3/+0
scripts/Makefile.build and arch/s390/boot/Makefile use the same command (thin archiving with symbol table creation). Avoid the code duplication, and move it to scripts/Makefile.lib. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-12treewide: add checks for the return value of memblock_alloc*()Mike Rapoport5-2/+31
Add check for the return value of memblock_alloc*() functions and call panic() in case of error. The panic message repeats the one used by panicing memblock allocators with adjustment of parameters to include only relevant ones. The replacement was mostly automated with semantic patches like the one below with manual massaging of format strings. @@ expression ptr, size, align; @@ ptr = memblock_alloc(size, align); + if (!ptr) + panic("%s: Failed to allocate %lu bytes align=0x%lx\n", __func__, size, align); [anders.roxell@linaro.org: use '%pa' with 'phys_addr_t' type] Link: http://lkml.kernel.org/r/20190131161046.21886-1-anders.roxell@linaro.org [rppt@linux.ibm.com: fix format strings for panics after memblock_alloc] Link: http://lkml.kernel.org/r/1548950940-15145-1-git-send-email-rppt@linux.ibm.com [rppt@linux.ibm.com: don't panic if the allocation in sparse_buffer_init fails] Link: http://lkml.kernel.org/r/20190131074018.GD28876@rapoport-lnx [akpm@linux-foundation.org: fix xtensa printk warning] Link: http://lkml.kernel.org/r/1548057848-15136-20-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Reviewed-by: Guo Ren <ren_guo@c-sky.com> [c-sky] Acked-by: Paul Burton <paul.burton@mips.com> [MIPS] Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390] Reviewed-by: Juergen Gross <jgross@suse.com> [Xen] Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k] Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa] Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Christoph Hellwig <hch@lst.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Dennis Zhou <dennis@kernel.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Mark Salter <msalter@redhat.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Petr Mladek <pmladek@suse.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Rob Herring <robh@kernel.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-12memblock: drop memblock_alloc_base()Mike Rapoport1-1/+5
The memblock_alloc_base() function tries to allocate a memory up to the limit specified by its max_addr parameter and panics if the allocation fails. Replace its usage with memblock_phys_alloc_range() and make the callers check the return value and panic in case of error. Link: http://lkml.kernel.org/r/1548057848-15136-10-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Christoph Hellwig <hch@lst.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Dennis Zhou <dennis@kernel.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Guo Ren <ren_guo@c-sky.com> [c-sky] Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Juergen Gross <jgross@suse.com> [Xen] Cc: Mark Salter <msalter@redhat.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Paul Burton <paul.burton@mips.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Rob Herring <robh@kernel.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-12memblock: memblock_phys_alloc(): don't panicMike Rapoport2-0/+6
Make the memblock_phys_alloc() function an inline wrapper for memblock_phys_alloc_range() and update the memblock_phys_alloc() callers to check the returned value and panic in case of error. Link: http://lkml.kernel.org/r/1548057848-15136-8-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Christoph Hellwig <hch@lst.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Dennis Zhou <dennis@kernel.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Guo Ren <ren_guo@c-sky.com> [c-sky] Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Juergen Gross <jgross@suse.com> [Xen] Cc: Mark Salter <msalter@redhat.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Paul Burton <paul.burton@mips.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Rob Herring <robh@kernel.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-11Merge tag 'kbuild-v5.1' of ↵Linus Torvalds3-19/+16
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - do not generate unneeded top-level built-in.a - let git ignore O= directory entirely - optimize scripts/kallsyms slightly - exclude DWARF info from *.s regardless of config options - fix GCC toolchain search path for Clang to prepare ld.lld support - do not generate modules.order when CONFIG_MODULES is disabled - simplify single target rules and remove VPATH for external module build - allow to add optional flags to dpkg-buildpackage when building deb-pkg - move some compiler option tests from Makefile to Kconfig - various Makefile cleanups * tag 'kbuild-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (40 commits) kbuild: remove scripts/basic/% build target kbuild: use -Werror=implicit-... instead of -Werror-implicit-... kbuild: clean up scripts/gcc-version.sh kbuild: remove cc-version macro kbuild: update comment block of scripts/clang-version.sh kbuild: remove commented-out INITRD_COMPRESS kbuild: move -gsplit-dwarf, -gdwarf-4 option tests to Kconfig kbuild: [bin]deb-pkg: add DPKG_FLAGS variable kbuild: move ".config not found!" message from Kconfig to Makefile kbuild: invoke syncconfig if include/config/auto.conf.cmd is missing kbuild: simplify single target rules kbuild: remove empty rules for makefiles kbuild: make -r/-R effective in top Makefile for old Make versions kbuild: move tools_silent to a more relevant place kbuild: compute false-positive -Wmaybe-uninitialized cases in Kconfig kbuild: refactor cc-cross-prefix implementation kbuild: hardcode genksyms path and remove GENKSYMS variable scripts/gdb: refactor rules for symlink creation kbuild: create symlink to vmlinux-gdb.py in scripts_gdb target scripts/gdb: do not descend into scripts/gdb from scripts ...
2019-03-09Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscryptLinus Torvalds2-2/+2
Pull fscrypt updates from Eric Biggers: "First: Ted, Jaegeuk, and I have decided to add me as a co-maintainer for fscrypt, and we're now using a shared git tree. So we've updated MAINTAINERS accordingly, and I'm doing the pull request this time. The actual changes for v5.1 are: - Remove the fs-specific kconfig options like CONFIG_EXT4_ENCRYPTION and make fscrypt support for all fscrypt-capable filesystems be controlled by CONFIG_FS_ENCRYPTION, similar to how CONFIG_QUOTA works. - Improve error code for rename() and link() into encrypted directories. - Various cleanups" * tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt: MAINTAINERS: add Eric Biggers as an fscrypt maintainer fscrypt: return -EXDEV for incompatible rename or link into encrypted dir fscrypt: remove filesystem specific build config option f2fs: use IS_ENCRYPTED() to check encryption status ext4: use IS_ENCRYPTED() to check encryption status fscrypt: remove CRYPTO_CTR dependency
2019-03-08arm, s390, unicore32: remove oneliner wrappers for memblock_alloc()Mike Rapoport1-9/+1
arm, s390 and unicore32 use oneliner wrappers for memblock_alloc(). Replace their usage with direct call to memblock_alloc(). Link: http://lkml.kernel.org/r/1546248566-14910-7-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Suggested-by: Christoph Hellwig <hch@infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Greentime Hu <green.hu@gmail.com> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@suse.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Paul Mackerras <paulus@samba.org> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-08arch: simplify several early memory allocationsMike Rapoport1-5/+1
There are several early memory allocations in arch/ code that use memblock_phys_alloc() to allocate memory, convert the returned physical address to the virtual address and then set the allocated memory to zero. Exactly the same behaviour can be achieved simply by calling memblock_alloc(): it allocates the memory in the same way as memblock_phys_alloc(), then it performs the phys_to_virt() conversion and clears the allocated memory. Replace the longer sequence with a simpler call to memblock_alloc(). Link: http://lkml.kernel.org/r/1546248566-14910-6-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Christoph Hellwig <hch@infradead.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Greentime Hu <green.hu@gmail.com> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@suse.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Paul Mackerras <paulus@samba.org> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-06Merge branch 'akpm' (patches from Andrew)Linus Torvalds3-7/+8
Merge misc updates from Andrew Morton: - a few misc things - ocfs2 updates - most of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (159 commits) tools/testing/selftests/proc/proc-self-syscall.c: remove duplicate include proc: more robust bulk read test proc: test /proc/*/maps, smaps, smaps_rollup, statm proc: use seq_puts() everywhere proc: read kernel cpu stat pointer once proc: remove unused argument in proc_pid_lookup() fs/proc/thread_self.c: code cleanup for proc_setup_thread_self() fs/proc/self.c: code cleanup for proc_setup_self() proc: return exit code 4 for skipped tests mm,mremap: bail out earlier in mremap_to under map pressure mm/sparse: fix a bad comparison mm/memory.c: do_fault: avoid usage of stale vm_area_struct writeback: fix inode cgroup switching comment mm/huge_memory.c: fix "orig_pud" set but not used mm/hotplug: fix an imbalance with DEBUG_PAGEALLOC mm/memcontrol.c: fix bad line in comment mm/cma.c: cma_declare_contiguous: correct err handling mm/page_ext.c: fix an imbalance with kmemleak mm/compaction: pass pgdat to too_many_isolated() instead of zone mm: remove zone_lru_lock() function, access ->lru_lock directly ...
2019-03-06Merge branch 'perf-core-for-linus' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "Lots of tooling updates - too many to list, here's a few highlights: - Various subcommand updates to 'perf trace', 'perf report', 'perf record', 'perf annotate', 'perf script', 'perf test', etc. - CPU and NUMA topology and affinity handling improvements, - HW tracing and HW support updates: - Intel PT updates - ARM CoreSight updates - vendor HW event updates - BPF updates - Tons of infrastructure updates, both on the build system and the library support side - Documentation updates. - ... and lots of other changes, see the changelog for details. Kernel side updates: - Tighten up kprobes blacklist handling, reduce the number of places where developers can install a kprobe and hang/crash the system. - Fix/enhance vma address filter handling. - Various PMU driver updates, small fixes and additions. - refcount_t conversions - BPF updates - error code propagation enhancements - misc other changes" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (238 commits) perf script python: Add Python3 support to syscall-counts-by-pid.py perf script python: Add Python3 support to syscall-counts.py perf script python: Add Python3 support to stat-cpi.py perf script python: Add Python3 support to stackcollapse.py perf script python: Add Python3 support to sctop.py perf script python: Add Python3 support to powerpc-hcalls.py perf script python: Add Python3 support to net_dropmonitor.py perf script python: Add Python3 support to mem-phys-addr.py perf script python: Add Python3 support to failed-syscalls-by-pid.py perf script python: Add Python3 support to netdev-times.py perf tools: Add perf_exe() helper to find perf binary perf script: Handle missing fields with -F +.. perf data: Add perf_data__open_dir_data function perf data: Add perf_data__(create_dir|close_dir) functions perf data: Fail check_backup in case of error perf data: Make check_backup work over directories perf tools: Add rm_rf_perf_data function perf tools: Add pattern name checking to rm_rf perf tools: Add depth checking to rm_rf perf data: Add global path holder ...
2019-03-06s390/vdso: don't clear PG_reservedDavid Hildenbrand1-2/+0
The VDSO is part of the kernel image and therefore the struct pages are marked as reserved during boot. As we install a special mapping, the actual struct pages will never be exposed to MM via the page tables. We can therefore leave the pages marked as reserved. Link: http://lkml.kernel.org/r/20190114125903.24845-3-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Suggested-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Kees Cook <keescook@chromium.org> Cc: Souptick Joarder <jrdr.linux@gmail.com> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-06mm: update ptep_modify_prot_commit to take old pte value as argAneesh Kumar K.V2-2/+3
Architectures like ppc64 require to do a conditional tlb flush based on the old and new value of pte. Enable that by passing old pte value as the arg. Link: http://lkml.kernel.org/r/20190116085035.29729-3-aneesh.kumar@linux.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Paul Mackerras <paulus@samba.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>
2019-03-06mm: update ptep_modify_prot_start/commit to take vm_area_struct as argAneesh Kumar K.V2-4/+6
Patch series "NestMMU pte upgrade workaround for mprotect", v5. We can upgrade pte access (R -> RW transition) via mprotect. We need to make sure we follow the recommended pte update sequence as outlined in commit bd5050e38aec ("powerpc/mm/radix: Change pte relax sequence to handle nest MMU hang") for such updates. This patch series does that. This patch (of 5): Some architectures may want to call flush_tlb_range from these helpers. Link: http://lkml.kernel.org/r/20190116085035.29729-2-aneesh.kumar@linux.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.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>
2019-03-05Merge branch 'timers-2038-for-linus' of ↵Linus Torvalds2-32/+62
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull year 2038 updates from Thomas Gleixner: "Another round of changes to make the kernel ready for 2038. After lots of preparatory work this is the first set of syscalls which are 2038 safe: 403 clock_gettime64 404 clock_settime64 405 clock_adjtime64 406 clock_getres_time64 407 clock_nanosleep_time64 408 timer_gettime64 409 timer_settime64 410 timerfd_gettime64 411 timerfd_settime64 412 utimensat_time64 413 pselect6_time64 414 ppoll_time64 416 io_pgetevents_time64 417 recvmmsg_time64 418 mq_timedsend_time64 419 mq_timedreceiv_time64 420 semtimedop_time64 421 rt_sigtimedwait_time64 422 futex_time64 423 sched_rr_get_interval_time64 The syscall numbers are identical all over the architectures" * 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits) riscv: Use latest system call ABI checksyscalls: fix up mq_timedreceive and stat exceptions unicore32: Fix __ARCH_WANT_STAT64 definition asm-generic: Make time32 syscall numbers optional asm-generic: Drop getrlimit and setrlimit syscalls from default list 32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option compat ABI: use non-compat openat and open_by_handle_at variants y2038: add 64-bit time_t syscalls to all 32-bit architectures y2038: rename old time and utime syscalls y2038: remove struct definition redirects y2038: use time32 syscall names on 32-bit syscalls: remove obsolete __IGNORE_ macros y2038: syscalls: rename y2038 compat syscalls x86/x32: use time64 versions of sigtimedwait and recvmmsg timex: change syscalls to use struct __kernel_timex timex: use __kernel_timex internally sparc64: add custom adjtimex/clock_adjtime functions time: fix sys_timer_settime prototype time: Add struct __kernel_timex time: make adjtime compat handling available for 32 bit ...
2019-03-05Merge tag 's390-5.1-1' of ↵Linus Torvalds53-1022/+1693
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Martin Schwidefsky: - A copy of Arnds compat wrapper generation series - Pass information about the KVM guest to the host in form the control program code and the control program version code - Map IOV resources to support PCI physical functions on s390 - Add vector load and store alignment hints to improve performance - Use the "jdd" constraint with gcc 9 to make jump labels working again - Remove amode workaround for old z/VM releases from the DCSS code - Add support for in-kernel performance measurements using the CPU measurement counter facility - Introduce a new PMU device cpum_cf_diag to capture counters and store thenn as event raw data. - Bug fixes and cleanups * tag 's390-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (54 commits) Revert "s390/cpum_cf: Add kernel message exaplanations" s390/dasd: fix read device characteristic with CONFIG_VMAP_STACK=y s390/suspend: fix prefix register reset in swsusp_arch_resume s390: warn about clearing als implied facilities s390: allow overriding facilities via command line s390: clean up redundant facilities list setup s390/als: remove duplicated in-place implementation of stfle s390/cio: Use cpa range elsewhere within vfio-ccw s390/cio: Fix vfio-ccw handling of recursive TICs s390: vfio_ap: link the vfio_ap devices to the vfio_ap bus subsystem s390/cpum_cf: Handle EBUSY return code from CPU counter facility reservation s390/cpum_cf: Add kernel message exaplanations s390/cpum_cf_diag: Add support for s390 counter facility diagnostic trace s390/cpum_cf: add ctr_stcctm() function s390/cpum_cf: move common functions into a separate file s390/cpum_cf: introduce kernel_cpumcf_avail() function s390/cpu_mf: replace stcctm5() with the stcctm() function s390/cpu_mf: add store cpu counter multiple instruction support s390/cpum_cf: Add minimal in-kernel interface for counter measurements s390/cpum_cf: introduce kernel_cpumcf_alert() to obtain measurement alerts ...
2019-03-05Merge branch 'linus' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto update from Herbert Xu: "API: - Add helper for simple skcipher modes. - Add helper to register multiple templates. - Set CRYPTO_TFM_NEED_KEY when setkey fails. - Require neither or both of export/import in shash. - AEAD decryption test vectors are now generated from encryption ones. - New option CONFIG_CRYPTO_MANAGER_EXTRA_TESTS that includes random fuzzing. Algorithms: - Conversions to skcipher and helper for many templates. - Add more test vectors for nhpoly1305 and adiantum. Drivers: - Add crypto4xx prng support. - Add xcbc/cmac/ecb support in caam. - Add AES support for Exynos5433 in s5p. - Remove sha384/sha512 from artpec7 as hardware cannot do partial hash" [ There is a merge of the Freescale SoC tree in order to pull in changes required by patches to the caam/qi2 driver. ] * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (174 commits) crypto: s5p - add AES support for Exynos5433 dt-bindings: crypto: document Exynos5433 SlimSSS crypto: crypto4xx - add missing of_node_put after of_device_is_available crypto: cavium/zip - fix collision with generic cra_driver_name crypto: af_alg - use struct_size() in sock_kfree_s() crypto: caam - remove redundant likely/unlikely annotation crypto: s5p - update iv after AES-CBC op end crypto: x86/poly1305 - Clear key material from stack in SSE2 variant crypto: caam - generate hash keys in-place crypto: caam - fix DMA mapping xcbc key twice crypto: caam - fix hash context DMA unmap size hwrng: bcm2835 - fix probe as platform device crypto: s5p-sss - Use AES_BLOCK_SIZE define instead of number crypto: stm32 - drop pointless static qualifier in stm32_hash_remove() crypto: chelsio - Fixed Traffic Stall crypto: marvell - Remove set but not used variable 'ivsize' crypto: ccp - Update driver messages to remove some confusion crypto: adiantum - add 1536 and 4096-byte test vectors crypto: nhpoly1305 - add a test vector with len % 16 != 0 crypto: arm/aes-ce - update IV after partial final CTR block ...
2019-03-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds5-139/+68
Pull networking updates from David Miller: "Here we go, another merge window full of networking and #ebpf changes: 1) Snoop DHCPACKS in batman-adv to learn MAC/IP pairs in the DHCP range without dealing with floods of ARP traffic, from Linus Lüssing. 2) Throttle buffered multicast packet transmission in mt76, from Felix Fietkau. 3) Support adaptive interrupt moderation in ice, from Brett Creeley. 4) A lot of struct_size conversions, from Gustavo A. R. Silva. 5) Add peek/push/pop commands to bpftool, as well as bash completion, from Stanislav Fomichev. 6) Optimize sk_msg_clone(), from Vakul Garg. 7) Add SO_BINDTOIFINDEX, from David Herrmann. 8) Be more conservative with local resends due to local congestion, from Yuchung Cheng. 9) Allow vetoing of unsupported VXLAN FDBs, from Petr Machata. 10) Add health buffer support to devlink, from Eran Ben Elisha. 11) Add TXQ scheduling API to mac80211, from Toke Høiland-Jørgensen. 12) Add statistics to basic packet scheduler filter, from Cong Wang. 13) Add GRE tunnel support for mlxsw Spectrum-2, from Nir Dotan. 14) Lots of new IP tunneling forwarding tests, also from Nir Dotan. 15) Add 3ad stats to bonding, from Nikolay Aleksandrov. 16) Lots of probing improvements for bpftool, from Quentin Monnet. 17) Various nfp drive #ebpf JIT improvements from Jakub Kicinski. 18) Allow #ebpf programs to access gso_segs from skb shared info, from Eric Dumazet. 19) Add sock_diag support for AF_XDP sockets, from Björn Töpel. 20) Support 22260 iwlwifi devices, from Luca Coelho. 21) Use rbtree for ipv6 defragmentation, from Peter Oskolkov. 22) Add JMP32 instruction class support to #ebpf, from Jiong Wang. 23) Add spinlock support to #ebpf, from Alexei Starovoitov. 24) Support 256-bit keys and TLS 1.3 in ktls, from Dave Watson. 25) Add device infomation API to devlink, from Jakub Kicinski. 26) Add new timestamping socket options which are y2038 safe, from Deepa Dinamani. 27) Add RX checksum offloading for various sh_eth chips, from Sergei Shtylyov. 28) Flow offload infrastructure, from Pablo Neira Ayuso. 29) Numerous cleanups, improvements, and bug fixes to the PHY layer and many drivers from Heiner Kallweit. 30) Lots of changes to try and make packet scheduler classifiers run lockless as much as possible, from Vlad Buslov. 31) Support BCM957504 chip in bnxt_en driver, from Erik Burrows. 32) Add concurrency tests to tc-tests infrastructure, from Vlad Buslov. 33) Add hwmon support to aquantia, from Heiner Kallweit. 34) Allow 64-bit values for SO_MAX_PACING_RATE, from Eric Dumazet. And I would be remiss if I didn't thank the various major networking subsystem maintainers for integrating much of this work before I even saw it. Alexei Starovoitov, Daniel Borkmann, Pablo Neira Ayuso, Johannes Berg, Kalle Valo, and many others. Thank you!" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2207 commits) net/sched: avoid unused-label warning net: ignore sysctl_devconf_inherit_init_net without SYSCTL phy: mdio-mux: fix Kconfig dependencies net: phy: use phy_modify_mmd_changed in genphy_c45_an_config_aneg net: dsa: mv88e6xxx: add call to mv88e6xxx_ports_cmode_init to probe for new DSA framework selftest/net: Remove duplicate header sky2: Disable MSI on Dell Inspiron 1545 and Gateway P-79 net/mlx5e: Update tx reporter status in case channels were successfully opened devlink: Add support for direct reporter health state update devlink: Update reporter state to error even if recover aborted sctp: call iov_iter_revert() after sending ABORT team: Free BPF filter when unregistering netdev ip6mr: Do not call __IP6_INC_STATS() from preemptible context isdn: mISDN: Fix potential NULL pointer dereference of kzalloc net: dsa: mv88e6xxx: support in-band signalling on SGMII ports with external PHYs cxgb4/chtls: Prefix adapter flags with CXGB4 net-sysfs: Switch to bitmap_zalloc() mellanox: Switch to bitmap_zalloc() bpf: add test cases for non-pointer sanitiation logic mlxsw: i2c: Extend initialization by querying resources data ...
2019-03-04get rid of legacy 'get_ds()' functionLinus Torvalds1-1/+0
Every in-kernel use of this function defined it to KERNEL_DS (either as an actual define, or as an inline function). It's an entirely historical artifact, and long long long ago used to actually read the segment selector valueof '%ds' on x86. Which in the kernel is always KERNEL_DS. Inspired by a patch from Jann Horn that just did this for a very small subset of users (the ones in fs/), along with Al who suggested a script. I then just took it to the logical extreme and removed all the remaining gunk. Roughly scripted with git grep -l '(get_ds())' -- :^tools/ | xargs sed -i 's/(get_ds())/(KERNEL_DS)/' git grep -lw 'get_ds' -- :^tools/ | xargs sed -i '/^#define get_ds()/d' plus manual fixups to remove a few unusual usage patterns, the couple of inline function cases and to fix up a comment that had become stale. The 'get_ds()' function remains in an x86 kvm selftest, since in user space it actually does something relevant. Inspired-by: Jann Horn <jannh@google.com> Inspired-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-01s390/suspend: fix prefix register reset in swsusp_arch_resumeMartin Schwidefsky1-3/+3
The reset of the prefix to zero in swsusp_arch_resume uses a 4 byte stack slot. With CONFIG_VMAP_STACK=y this is now in the vmalloc area, this works only with DAT enabled. Move the DAT disable in swsusp_arch_resume after the prefix reset. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-03-01s390: warn about clearing als implied facilitiesVasily Gorbik3-2/+20
Add a warning about removing required architecture level set facilities via "facilities=" command line option. Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-03-01s390: allow overriding facilities via command lineVasily Gorbik3-2/+50
Add "facilities=" command line option which allows to override facility bits returned by stfle. The main purpose of that is debugging aids which allows to test specific kernel behaviour depending on specific facilities presence. It also affects CPU alternatives. "facilities=" command line option format is comma separated list of integer values to be additionally set or cleared (if value is starting with "!"). Values ranges are also supported. e.g.: facilities=!130-160,159,167-169 Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-03-01s390: clean up redundant facilities list setupVasily Gorbik2-4/+0
Facilities list in the lowcore is initially set up by verify_facilities from als.c and later initializations are redundant, so cleaning them up. Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-03-01s390/als: remove duplicated in-place implementation of stfleVasily Gorbik1-14/+1
Reuse __stfle call instead of in-place implementation. __stfle is using memcpy and memset functions but they are safe to use, since mem.S is built with -march=z900. Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-28Merge branch 'linus' into perf/core, to pick up fixesIngo Molnar3-4/+6
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-02-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-1/+1
Three conflicts, one of which, for marvell10g.c is non-trivial and requires some follow-up from Heiner or someone else. The issue is that Heiner converted the marvell10g driver over to use the generic c45 code as much as possible. However, in 'net' a bug fix appeared which makes sure that a new local mask (MDIO_AN_10GBT_CTRL_ADV_NBT_MASK) with value 0x01e0 is cleared. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-22s390/cpum_cf: Handle EBUSY return code from CPU counter facility reservationThomas Richter1-1/+3
Rservation of the CPU Measurement Counter facility may fail if it is already in use by the cf_diag device driver. This is indicated by a non zero return code (-EBUSY). However this return code is ignored and the counter facility may be used in parallel by different device drivers. Handle the failing reservation and return an error to the caller. Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22s390/cpum_cf_diag: Add support for s390 counter facility diagnostic traceThomas Richter4-0/+721
Introduce a PMU device named cpum_cf_diag. It extracts the values of all counters in all authorized counter sets and stores them as event raw data. This is done with the STORE CPU COUNTER MULTIPLE instruction to speed up access. All counter sets fit into one buffer. The values of each counter are taken when the event is started on the performance sub-system and when the event is stopped. This results in counter values available at the start and at the end of the measurement time frame. The difference is calculated for each counter. The differences of all counters are then saved as event raw data in the perf.data file. The counter values are accompanied by the time stamps when the counter set was started and when the counter set was stopped. This data is part of a trailer entry which describes the time frame, counter set version numbers, CPU speed, and machine type for later analysis. Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22s390/cpum_cf: add ctr_stcctm() functionHendrik Brueckner1-0/+19
Introduce the ctr_stcctm() function as wrapper function to extract counters from a particular counter set. Note that the counter set is part of the stcctm instruction opcode, few indirections are necessary to specify the counter set as variable. Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22s390/cpum_cf: move common functions into a separate fileHendrik Brueckner3-182/+206
Move common functions of the couter facility support into a separate file. Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22s390/cpum_cf: introduce kernel_cpumcf_avail() functionHendrik Brueckner2-3/+18
A preparation to move out common CPU-MF counter facility support functions, first introduce a function that indicates whether the support is ready to use. Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22s390/cpu_mf: replace stcctm5() with the stcctm() functionHendrik Brueckner2-18/+11
Remove the stcctm5() function to extract counters from the MT-diagnostic counter set with the stcctm() function. For readability, introduce an enum to map the counter sets names to respective numbers for the stcctm instruction. Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22s390/cpu_mf: add store cpu counter multiple instruction supportHendrik Brueckner2-0/+39
Add support for the STORE CPU COUNTER MULTIPLE instruction to extract a range of counters from a counter set. An assembler macro is used to create the instruction opcode because the counter set identifier is part of the instruction and, thus, cannot be easily specified as parameter. Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22s390/cpum_cf: Add minimal in-kernel interface for counter measurementsHendrik Brueckner1-0/+14
Introduce a minimal interface for doing counter measurements of small units of work within the kernel. Use the kernel_cpumcf_begin() function start a measurement session and, later, stop it with kernel_cpumcf_end(). During the measreument session, you can enable and start/stop counter sets by using ctr_set_* functions. To make these changes effective use the lcctl() function. You can then use the ecctr() function to extract counters from the different counter sets. Please note that you have to check whether the counter sets to be enabled are authorized. Note that when a measurement session is active, other users cannot perform counter measurements. In such cases, kernel_cpumcf_begin() indicates this with returning -EBUSY. If the counter facility is not available, kernel_cpumcf_begin() returns -ENODEV. Note that this interface is restricted to the current CPU and, thus, preemption must be turned off. Example: u32 state, err; u64 cycles, insn; err = kernel_cpumcf_begin(); if (err) goto out_busy; state = 0; ctr_set_enable(&state, CPUMF_CTR_SET_BASIC); ctr_set_start(&state, CPUMF_CTR_SET_BASIC); err = lcctl(state); if (err) goto ; /* ... do your work ... */ ctr_set_stop(&state, CPUMF_CTR_SET_BASIC); err = lcctl(state); if (err) goto out; cycles = insn = 0; ecctr(0, &cycles); ecctr(1, &insn); /* ... */ kernel_cpumcf_end(); out_busy: Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22s390/cpum_cf: introduce kernel_cpumcf_alert() to obtain measurement alertsHendrik Brueckner2-0/+20
During a __kernel_cpumcf_begin()/end() session, save measurement alerts for the counter facility in the per-CPU cpu_cf_events variable. Users can obtain and, optionally, clear the alerts by calling kernel_cpumcf_alert() to specifically handle alerts. Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22s390/cpu_mf: move struct cpu_cf_events and per-CPU variable to header fileHendrik Brueckner2-9/+11
Make the struct cpu_cf_events and the respective per-CPU variable available to in-kernel users. Access to this per-CPU variable shall be done between the calls to __kernel_cpumcf_begin() and __kernel_cpumcf_end(). Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22s390/cpum_cf: rename per-CPU counter facility structure and variablesHendrik Brueckner1-20/+20
Rename the struct cpu_hw_events to cpu_cf_events and also the respective per-CPU variable to make its name more clear. No functional changes. Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22s390/cpum_cf: prepare for in-kernel counter measurementsHendrik Brueckner2-6/+29
Prepare the counter facility support to be used by other in-kernel users. The first step introduces the __kernel_cpumcf_begin() and __kernel_cpumcf_end() functions to reserve the counter facility for doing measurements and to release after the measurements are done. Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22s390/cpum_cf: move counter set controls to a new header fileHendrik Brueckner4-43/+56
Move counter set specific controls and functions to the asm/cpu_mcf.h header file containg all counter facility support definitions. Also adapt few variable names and header file includes. No functional changes. Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-21s390/net: convert pnetids to asciiHans Wippel1-0/+3
Pnetids are retrieved from the underlying hardware as EBCDIC. This patch converts pnetids to ASCII. Signed-off-by: Hans Wippel <hwippel@linux.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-21s390/extmem: print DCSS range with %pxGerald Schaefer1-2/+2
The DCSS range is currently printed with %p, which results in hashed values instead of the actual addresses. Use %px instead, the DCSS ranges do not reveal any kernel symbol addresses. Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-21s390/extmem: remove code for 31 bit addressing modeGerald Schaefer1-117/+12
All supported releases of z/VM allow 64 bit subcodes and addressing mode for diag 0x64. This patch removes a lot of code for handling 31 bit addressing mode and old subcodes. Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-20Merge tag 'kvm-s390-master-5.0' of ↵Paolo Bonzini1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-master KVM: s390: Fix crypto handling for nested KVM
2019-02-20s390/setup: fix boot crash for machine without EDAT-1Martin Schwidefsky1-7/+6
The fix to make WARN work in the early boot code created a problem on older machines without EDAT-1. The setup_lowcore_dat_on function uses the pointer from lowcore_ptr[0] to set the DAT bit in the new PSWs. That does not work if the kernel page table is set up with 4K pages as the prefix address maps to absolute zero. To make this work the PSWs need to be changed with via address 0 in form of the S390_lowcore definition. Reported-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Cornelia Huck <cohuck@redhat.com> Fixes: 94f85ed3e2f8 ("s390/setup: fix early warning messages") Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-20s390/setup: fix early warning messagesMartin Schwidefsky1-9/+23
The setup_lowcore() function creates a new prefix page for the boot CPU. The PSW mask for the system_call, external interrupt, i/o interrupt and the program check handler have the DAT bit set in this new prefix page. At the time setup_lowcore is called the system still runs without virtual address translation, the paging_init() function creates the kernel page table and loads the CR13 with the kernel ASCE. Any code between setup_lowcore() and the end of paging_init() that has a BUG or WARN statement will create a program check that can not be handled correctly as there is no kernel page table yet. To allow early WARN statements initially setup the lowcore with DAT off and set the DAT bit only after paging_init() has completed. Cc: stable@vger.kernel.org Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-20s390/jump_label: Use "jdd" constraint on gcc9Ilya Leoshkevich1-4/+10
[heiko.carstens@de.ibm.com]: ----- Laura Abbott reported that the kernel doesn't build anymore with gcc 9, due to the "X" constraint. Ilya provided the gcc 9 patch "S/390: Introduce jdd constraint" which introduces the new "jdd" constraint which fixes this. ----- The support for section anchors on S/390 introduced in gcc9 has changed the behavior of "X" constraint, which can now produce register references. Since existing constraints, in particular, "i", do not fit the intended use case on S/390, the new machine-specific "jdd" constraint was introduced. This patch makes jump labels use "jdd" constraint when building with gcc9. Reported-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2-3/+5
The netfilter conflicts were rather simple overlapping changes. However, the cls_tcindex.c stuff was a bit more complex. On the 'net' side, Cong is fixing several races and memory leaks. Whilst on the 'net-next' side we have Vlad adding the rtnl-ness support. What I've decided to do, in order to resolve this, is revert the conversion over to using a workqueue that Cong did, bringing us back to pure RCU. I did it this way because I believe that either Cong's races don't apply with have Vlad did things, or Cong will have to implement the race fix slightly differently. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-11s390: vsie: Use effective CRYCBD.31 to check CRYCBD validityPierre Morel1-1/+1
When facility.76 MSAX3 is present for the guest we must issue a validity interception if the CRYCBD is not valid. The bit CRYCBD.31 is an effective field and tested at each guest level and has for effect to mask the facility.76 It follows that if CRYCBD.31 is clear and AP is not in use we do not have to test the CRYCBD validatity even if facility.76 is present in the host. Fixes: 6ee74098201b ("KVM: s390: vsie: allow CRYCB FORMAT-0") Cc: stable@vger.kernel.org Signed-off-by: Pierre Morel <pmorel@linux.ibm.com> Reported-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Acked-by: David Hildenbrand <david@redhat.com> Acked-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Message-Id: <1549876849-32680-1-git-send-email-pmorel@linux.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2019-02-10Merge tag 'y2038-new-syscalls' of ↵Thomas Gleixner2-27/+47
git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground into timers/2038 Pull y2038 - time64 system calls from Arnd Bergmann: This series finally gets us to the point of having system calls with 64-bit time_t on all architectures, after a long time of incremental preparation patches. There was actually one conversion that I missed during the summer, i.e. Deepa's timex series, which I now updated based the 5.0-rc1 changes and review comments. The following system calls are now added on all 32-bit architectures using the same system call numbers: 403 clock_gettime64 404 clock_settime64 405 clock_adjtime64 406 clock_getres_time64 407 clock_nanosleep_time64 408 timer_gettime64 409 timer_settime64 410 timerfd_gettime64 411 timerfd_settime64 412 utimensat_time64 413 pselect6_time64 414 ppoll_time64 416 io_pgetevents_time64 417 recvmmsg_time64 418 mq_timedsend_time64 419 mq_timedreceiv_time64 420 semtimedop_time64 421 rt_sigtimedwait_time64 422 futex_time64 423 sched_rr_get_interval_time64 Each one of these corresponds directly to an existing system call that includes a 'struct timespec' argument, or a structure containing a timespec or (in case of clock_adjtime) timeval. Not included here are new versions of getitimer/setitimer and getrusage/waitid, which are planned for the future but only needed to make a consistent API rather than for correct operation beyond y2038. These four system calls are based on 'timeval', and it has not been finally decided what the replacement kernel interface will use instead. So far, I have done a lot of build testing across most architectures, which has found a number of bugs. Runtime testing so far included testing LTP on 32-bit ARM with the existing system calls, to ensure we do not regress for existing binaries, and a test with a 32-bit x86 build of LTP against a modified version of the musl C library that has been adapted to the new system call interface [3]. This library can be used for testing on all architectures supported by musl-1.1.21, but it is not how the support is getting integrated into the official musl release. Official musl support is planned but will require more invasive changes to the library. Link: https://lore.kernel.org/lkml/20190110162435.309262-1-arnd@arndb.de/T/ Link: https://lore.kernel.org/lkml/20190118161835.2259170-1-arnd@arndb.de/ Link: https://git.linaro.org/people/arnd/musl-y2038.git/ [2]
2019-02-10Merge tag 'y2038-syscall-cleanup' of ↵Thomas Gleixner10-574/+318
git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground into timers/2038 Pull preparatory work for y2038 changes from Arnd Bergmann: System call unification and cleanup The system call tables have diverged a bit over the years, and a number of the recent additions never made it into all architectures, for one reason or another. This is an attempt to clean it up as far as we can without breaking compatibility, doing a number of steps: - Add system calls that have not yet been integrated into all architectures but that we definitely want there. This includes {,f}statfs64() and get{eg,eu,g,p,u,pp}id() on alpha, which have been missing traditionally. - The s390 compat syscall handling is cleaned up to be more like what we do on other architectures, while keeping the 31-bit pointer extension. This was merged as a shared branch by the s390 maintainers and is included here in order to base the other patches on top. - Add the separate ipc syscalls on all architectures that traditionally only had sys_ipc(). This version is done without support for IPC_OLD that is we have in sys_ipc. The new semtimedop_time64 syscall will only be added here, not in sys_ipc - Add syscall numbers for a couple of syscalls that we probably don't need everywhere, in particular pkey_* and rseq, for the purpose of symmetry: if it's in asm-generic/unistd.h, it makes sense to have it everywhere. I expect that any future system calls will get assigned on all platforms together, even when they appear to be specific to a single architecture. - Prepare for having the same system call numbers for any future calls. In combination with the generated tables, this hopefully makes it easier to add new calls across all architectures together. All of the above are technically separate from the y2038 work, but are done as preparation before we add the new 64-bit time_t system calls everywhere, providing a common baseline set of system calls. I expect that glibc and other libraries that want to use 64-bit time_t will require linux-5.1 kernel headers for building in the future, and at a much later point may also require linux-5.1 or a later version as the minimum kernel at runtime. Having a common baseline then allows the removal of many architecture or kernel version specific workarounds.

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