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* mm/gup: Switch all callers of get_user_pages() to not pass tsk/mmDave Hansen2016-02-161-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We will soon modify the vanilla get_user_pages() so it can no longer be used on mm/tasks other than 'current/current->mm', which is by far the most common way it is called. For now, we allow the old-style calls, but warn when they are used. (implemented in previous patch) This patch switches all callers of: get_user_pages() get_user_pages_unlocked() get_user_pages_locked() to stop passing tsk/mm so they will no longer see the warnings. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave@sr71.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: jack@suse.cz Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20160212210156.113E9407@viggo.jf.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Merge branch 'akpm' (patches from Andrew)Linus Torvalds2016-01-211-12/+42
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge third patch-bomb from Andrew Morton: "I'm pretty much done for -rc1 now: - the rest of MM, basically - lib/ updates - checkpatch, epoll, hfs, fatfs, ptrace, coredump, exit - cpu_mask simplifications - kexec, rapidio, MAINTAINERS etc, etc. - more dma-mapping cleanups/simplifications from hch" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (109 commits) MAINTAINERS: add/fix git URLs for various subsystems mm: memcontrol: add "sock" to cgroup2 memory.stat mm: memcontrol: basic memory statistics in cgroup2 memory controller mm: memcontrol: do not uncharge old page in page cache replacement Documentation: cgroup: add memory.swap.{current,max} description mm: free swap cache aggressively if memcg swap is full mm: vmscan: do not scan anon pages if memcg swap limit is hit swap.h: move memcg related stuff to the end of the file mm: memcontrol: replace mem_cgroup_lruvec_online with mem_cgroup_online mm: vmscan: pass memcg to get_scan_count() mm: memcontrol: charge swap to cgroup2 mm: memcontrol: clean up alloc, online, offline, free functions mm: memcontrol: flatten struct cg_proto mm: memcontrol: rein in the CONFIG space madness net: drop tcp_memcontrol.c mm: memcontrol: introduce CONFIG_MEMCG_LEGACY_KMEM mm: memcontrol: allow to disable kmem accounting for cgroup2 mm: memcontrol: account "kmem" consumers in cgroup2 memory controller mm: memcontrol: move kmem accounting code to CONFIG_MEMCG mm: memcontrol: separate kmem code from legacy tcp accounting code ...
| * cris: convert to dma_map_opsChristoph Hellwig2016-01-211-12/+42
| | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Joerg Roedel <jroedel@suse.de> Cc: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge tag 'cris-for-4.5' of ↵Linus Torvalds2016-01-211-2/+4
|\ \ | |/ |/| | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris Pull CRIS updates from Jesper Nilsson: "Just some fixups for section mismatches from Guenter" * tag 'cris-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris: cris: Fix section mismatches in architecture startup code cris: debugport: Fix section mismatches
| * cris: Fix section mismatches in architecture startup codeGuenter Roeck2015-12-151-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Section mismatches can now result in build failures. As result, cris:allnoconfig fails to build as follows. WARNING: modpost: Found 7 section mismatch(es). To see full details build your kernel with: 'make CONFIG_DEBUG_SECTION_MISMATCH=y' FATAL: modpost: Section mismatches detected. Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them. Part of the problem is that references from .text to .init.text are not permitted, and such references are used in cris startup code. Since references from .head.text to .init.text are permitted, move cris startup code to a new section .head.text. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* | cris: nand: remove useless mtd->priv = chip assignmentsBoris BREZILLON2015-12-182-6/+0
| | | | | | | | | | | | | | | | | | | | mtd_to_nand() now uses the container_of() approach to transform an mtd_info pointer into a nand_chip one. Drop useless mtd->priv assignments from NAND controller drivers. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | cris: nand: use the mtd instance embedded in struct nand_chipBoris BREZILLON2015-12-182-4/+2
| | | | | | | | | | | | | | | | | | | | struct nand_chip now embeds an mtd device. Patch all drivers to make use of this mtd instance instead of using the instance embedded in their private struct or dynamically allocated. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | cris: nand: make use of mtd_to_nand() where appropriateBoris BREZILLON2015-12-082-2/+2
|/ | | | | | | | | | | mtd_to_nand() was recently introduced to avoid direct accesses to the mtd->priv field. Update all CRIS specific implementations to use this helper. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* CRIS: Drop code related to obsolete or unused kconfigsJesper Nilsson2015-11-025-34/+1
| | | | | | | | | | Drop all code related to Kconfigs that don't exist. Fix one Kconfig where it was actually typo:ed (ETRAX_KGB_PORT2) Drop content related to CRIS v32 SoCs from etraxgpio.h headerfile, all use of GPIO for both ETRAX FS and ARTPEC-3 should now be through standard gpiolib instead. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* cris: re-use helpers to dump data in hex formatAndy Shevchenko2015-11-021-34/+6
| | | | | | | | There are native helpers such as print_hex_byte() and %*ph specifier to dump data in hex format. Re-use them instead of a custom approach. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jesper Nilsson <jespern@axis.com>
* CRIS v32: remove old GPIO and LEDs codeRabin Vincent2015-11-0211-2562/+2
| | | | | | | | | | | | | | Since we now have a gpiolib driver, remove this code: The gpio-etraxfs driver (along with things like gpio-keys-polled for polling support) replaces the GIO driver implementations in mach-a3 and mach-fs. The various generic external chip drivers replace the "virtual gpio" parts. The generic gpio-leds driver replaces the LED handling. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com>
* CRIS v32: remove I2C bitbanging driverRabin Vincent2015-11-024-786/+0
| | | | | | | | Now that we have a gpiolib GPIO driver, the generic i2c-gpio driver provides this functionality. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com>
* CRIS v32: increase NR_IRQSRabin Vincent2015-11-021-2/+2
| | | | | | | Increase NR_IQRS so we can fit in GPIO interrupts. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com>
* cris: kgdb: use native hex2binAndy Shevchenko2015-11-021-58/+38
| | | | | | | | | There are kernel native helpers to convert hex ascii to the binary format: hex_to_bin() and hex2bin(). Thus, no need to reimplement them customly. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jesper Nilsson <jespern@axis.com>
* CRISv32: annotate irq enable in idle loopRabin Vincent2015-09-051-2/+2
| | | | | | | | Use a call to local_irq_enable() instead of incline asm so that the irqsoff latency tracer knows that interrupts are enabled here. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* CRISv32: add support for irqflags tracingRabin Vincent2015-09-051-0/+11
| | | | | | | | Add support irqflags tracing, which is required for things like lockdep and ftrace. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* CRIS: UAPI: fix ptrace.hRabin Vincent2015-09-051-1/+0
| | | | | | | | | | The exported ptrace.h header on CRIS references an "arch" directory which does not exist. Fix this by having the variants in the same directory and including them conditionally, similar to other architectures. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* CRISv32: Squash compile warnings for axisflashmapJesper Nilsson2015-09-051-4/+5
| | | | Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* CRISv32: Add GPIO driver to the default configsJesper Nilsson2015-09-052-10/+10
| | | | | | | | | | | Fix a number of small issues visible when GPIO is enabled: - Correct missing default for !ETRAXFS in Kconfig - Remove information on number of bits for some Kconfigs related to the GPIO, they are different in ETRAX FS and ARTPEC-3 - Fix compile warning in ARTPEC-3 GPIO driver Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* CRISv32: ETRAX FS: Squash warnings in pinmux driverJesper Nilsson2015-09-051-2/+6
| | | | | | | | | | | | | Squash the followng warnings arch/cris/arch-v32/mach-fs/pinmux.c: In function 'crisv32_pinmux_alloc_fixed': arch/cris/arch-v32/mach-fs/pinmux.c:104:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] arch/cris/arch-v32/mach-fs/pinmux.c: In function 'crisv32_pinmux_dealloc_fixed': arch/cris/arch-v32/mach-fs/pinmux.c:238:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] arch/cris/arch-v32/mach-fs/pinmux.c: In function '__crisv32_pinmux_alloc': arch/cris/arch-v32/mach-fs/pinmux.c:49:1: warning: control reaches end of non-void function [-Wreturn-type] Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* CRIS: Wire up missing syscallsChen Gang2015-09-051-0/+8
| | | | | | | | | | | | | | | | | The related warnings: CALL scripts/checksyscalls.sh <stdin>:1229:2: warning: #warning syscall sched_setattr not implemented [-Wcpp] <stdin>:1232:2: warning: #warning syscall sched_getattr not implemented [-Wcpp] <stdin>:1235:2: warning: #warning syscall renameat2 not implemented [-Wcpp] <stdin>:1238:2: warning: #warning syscall seccomp not implemented [-Wcpp] <stdin>:1241:2: warning: #warning syscall getrandom not implemented [-Wcpp] <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] <stdin>:1247:2: warning: #warning syscall bpf not implemented [-Wcpp] <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Jesper Nilsson <jespern@axis.com>
* cris: arch-v32: gpio: Use kzalloc instead of kmalloc/memsetChristophe Jaillet2015-09-051-2/+1
| | | | | | | | Turn a kmalloc/memset into an equivalent kzalloc. Doing so also move the zero'ing of the memory outside of a mutex. Signed-off-by: Christophe Jaillet <christophe.jaillet@wanadoo.fr> Signed-off-by: Jesper Nilsson <jespern@axis.com>
* cris/time: Migrate to new 'set-state' interfaceViresh Kumar2015-08-101-3/+5
| | | | | | | | | | | | | | | | | Migrate cris driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Rabin Vincent <rabin@rab.in> Cc: Guenter Roeck <linux@roeck-us.net> Cc: linux-cris-kernel@axis.com Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* cris: Replace do_posix_clock_monotonic_gettime()Thomas Gleixner2015-07-091-1/+1
| | | | | | | ktime_get_ts() is the proper interface today. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jesper Nilsson <jesper.nilsson@axis.com>
* cris: don't use module_init for non-modular core intmem.c codePaul Gortmaker2015-06-161-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | The intmem.c code is always built in. It will never be modular, so using module_init as an alias for __initcall is rather misleading. Fix this up now, so that we can relocate module_init from init.h into module.h in the future. If we don't do this, we'd have to add module.h to obviously non-modular code, and that would be a worse thing. Direct use of __initcall is discouraged, vs prioritized ones. Use of device_initcall is consistent with what __initcall maps onto, and hence does not change the init order, making the impact of this change zero. Should someone with real hardware for boot testing want to change it later to arch_initcall or something different, they can do that at a later date. Reported-by: kbuild test robot <fengguang.wu@intel.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: linux-cris-kernel@axis.com Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* Merge tag 'cris-for-4.1' of ↵Linus Torvalds2015-04-2612-575/+136
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris Pull arch/cris updates from Jesper Nilsson: "Some much needed love for the CRIS-port. There's a bunch of changes this time, giving the CRISv32 port a bit of modern makeover with device-tree, irq domain and gpiolib support, and more switchover to generic frameworks. Some small fixes and removal of the theoretical SMP support brings up the rear" * tag 'cris-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris: cris: fix integer overflow in ELF_ET_DYN_BASE CRISv32: use GENERIC_SCHED_CLOCK CRISv32: use MMIO clocksource CRISv32: use generic clockevents CRIS: use generic headers via Kbuild CRIS: use generic cmpxchg.h CRIS: use generic atomic.h CRIS: use generic atomic bitops CRISv10: remove redundant macros from system.h CRIS: remove SMP code CRISv32: don't enable irqs in INIT_THREAD CRISv32: handle multiple signals CRISv32: prevent bogus restarts on sigreturn CRISv32: don't attempt syscall restart on irq exit Add binding documentation for CRIS CRIS: add Axis 88 board device tree CRISv32: add device tree support CRISv32: add irq domains support CRIS: enable GPIOLIB
| * CRISv32: use GENERIC_SCHED_CLOCKRabin Vincent2015-03-251-0/+9
| | | | | | | | | | | | | | | | Provide a fast sched clock using the free-running timer and the generic sched_clock infrastructure. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com>
| * CRISv32: use MMIO clocksourceRabin Vincent2015-03-251-21/+4
| | | | | | | | | | | | | | Use a generic MMIO clocksource and get rid of some lines of code. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com>
| * CRISv32: use generic clockeventsRabin Vincent2015-03-251-60/+85
| | | | | | | | | | | | | | | | Implement a oneshot-capable clockevents device so we get support for things like hrtimers and NOHZ. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com>
| * CRIS: remove SMP codeRabin Vincent2015-03-2510-458/+1
| | | | | | | | | | | | | | | | The CRIS SMP code cannot be built since there is no (and appears to never have been) a CONFIG_SMP Kconfig option in arch/cris/. Remove it. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com>
| * CRISv32: handle multiple signalsRabin Vincent2015-03-251-32/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Al Viro noted that CRIS fails to handle multiple signals. This fixes the problem for CRISv32 by making it use a C work_pending handling loop similar to the ARM implementation in 0a267fa6a15d41c ("ARM: 7472/1: pull all work_pending logics into C function"). This also happens to fixes the warnings which currently trigger on CRISv32 due to do_signal() being called with interrupts disabled. Test case (should die of the SIGSEGV which gets raised when setting up the stack for SIGALRM, but instead reaches and executes the _exit(1)): #include <unistd.h> #include <signal.h> #include <sys/time.h> #include <err.h> static void handler(int sig) { } int main(int argc, char *argv[]) { int ret; struct itimerval t1 = { .it_value = {1} }; stack_t ss = { .ss_sp = NULL, .ss_size = SIGSTKSZ, }; struct sigaction action = { .sa_handler = handler, .sa_flags = SA_ONSTACK, }; ret = sigaltstack(&ss, NULL); if (ret < 0) err(1, "sigaltstack"); sigaction(SIGALRM, &action, NULL); setitimer(ITIMER_REAL, &t1, NULL); pause(); _exit(1); return 0; } Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Link: http://lkml.kernel.org/r/20121208074429.GC4939@ZenIV.linux.org.uk Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com>
| * CRISv32: prevent bogus restarts on sigreturnRabin Vincent2015-03-252-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Al Viro noted that CRIS is vulnerable to bogus restarts on sigreturn. The fixes CRISv32 by using regs->exs as an additional indicator to whether we should attempt to restart the syscall or not. EXS is only used in the sigtrap handling, and in that path we already have r9 (the other indicator, which indicates if we're in a syscall or not) cleared. Test case, a port of Al's ARM version from 653d48b22166db2d8 ("arm: fix really nasty sigreturn bug"): #include <unistd.h> #include <signal.h> #include <stdlib.h> #include <sys/time.h> #include <errno.h> void f(int n) { register int r10 asm ("r10") = n; __asm__ __volatile__( "ba 1f \n" "nop \n" "break 8 \n" "1: ba . \n" "nop \n" : : "r" (r10) : "memory"); } void handler1(int sig) { } void handler2(int sig) { raise(1); } void handler3(int sig) { exit(0); } int main(int argc, char *argv[]) { struct sigaction s = {.sa_handler = handler2}; struct itimerval t1 = { .it_value = {1} }; struct itimerval t2 = { .it_value = {2} }; signal(1, handler1); sigemptyset(&s.sa_mask); sigaddset(&s.sa_mask, 1); sigaction(SIGALRM, &s, NULL); signal(SIGVTALRM, handler3); setitimer(ITIMER_REAL, &t1, NULL); setitimer(ITIMER_VIRTUAL, &t2, NULL); f(-513); /* -ERESTARTNOINTR */ return 0; } Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Link: http://lkml.kernel.org/r/20121208074429.GC4939@ZenIV.linux.org.uk Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com>
| * CRISv32: don't attempt syscall restart on irq exitRabin Vincent2015-03-251-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | r9 is used to determine whether syscall restarting must be performed or not. Unfortunately, r9 is never set to zero in the non-syscall path, and r9 is on top of that a callee-saved register which can be set to non-zero by the C functions that are called during IRQ handling. This means that if r10 (used for the syscall return value) is one of the -ERESTART* values when a hardware interrupt occurs which leads to a signal being delivered to the process, the kernel will "restart" a syscall which never occurred. This will lead to the PC being moved back by 2 on return to user space. Fix the problem by setting r9 to zero in the interrupt path. Test case (should loop forever but ends up executing the break 8 trap instruction): #include <signal.h> #include <stdlib.h> #include <sys/time.h> void f(int n) { register int r9 asm ("r9") = 1; register int r10 asm ("r10") = n; __asm__ __volatile__( "ba 1f \n" "nop \n" "break 8 \n" "1: ba . \n" "nop \n" : : "r" (r9), "r" (r10) : "memory"); } void handler1(int sig) { } int main(int argc, char *argv[]) { struct itimerval t1 = { .it_value = {1} }; signal(SIGALRM, handler1); setitimer(ITIMER_REAL, &t1, NULL); f(-513); /* -ERESTARTNOINTR */ return 0; } Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com>
| * CRISv32: add irq domains supportRabin Vincent2015-03-251-3/+25
| | | | | | | | | | | | | | Add support for IRQ domains to the CRISv32 interrupt controller. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* | Merge branch 'akpm' (patches from Andrew)Linus Torvalds2015-04-162-76/+71
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge second patchbomb from Andrew Morton: - the rest of MM - various misc bits - add ability to run /sbin/reboot at reboot time - printk/vsprintf changes - fiddle with seq_printf() return value * akpm: (114 commits) parisc: remove use of seq_printf return value lru_cache: remove use of seq_printf return value tracing: remove use of seq_printf return value cgroup: remove use of seq_printf return value proc: remove use of seq_printf return value s390: remove use of seq_printf return value cris fasttimer: remove use of seq_printf return value cris: remove use of seq_printf return value openrisc: remove use of seq_printf return value ARM: plat-pxa: remove use of seq_printf return value nios2: cpuinfo: remove use of seq_printf return value microblaze: mb: remove use of seq_printf return value ipc: remove use of seq_printf return value rtc: remove use of seq_printf return value power: wakeup: remove use of seq_printf return value x86: mtrr: if: remove use of seq_printf return value linux/bitmap.h: improve BITMAP_{LAST,FIRST}_WORD_MASK MAINTAINERS: CREDITS: remove Stefano Brivio from B43 .mailmap: add Ricardo Ribalda CREDITS: add Ricardo Ribalda Delgado ...
| * | cris fasttimer: remove use of seq_printf return valueJoe Perches2015-04-161-46/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The seq_printf return value, because it's frequently misused, will eventually be converted to void. See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to seq_has_overflowed() and make public") Miscellanea: o Coalesce formats, realign arguments Signed-off-by: Joe Perches <joe@perches.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | cris: remove use of seq_printf return valueJoe Perches2015-04-161-30/+32
| |/ | | | | | | | | | | | | | | | | | | | | | | | | The seq_printf return value, because it's frequently misused, will eventually be converted to void. See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to seq_has_overflowed() and make public") Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* / arch: Remove exec_domain from remaining archsRichard Weinberger2015-04-121-2/+0
|/ | | | Signed-off-by: Richard Weinberger <richard@nod.at>
* Merge tag 'cris-for-3.20' of ↵Linus Torvalds2015-02-162-2/+6
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris Pull CRIS changes from Jesper Nilsson. * tag 'cris-for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris: CRIS: Whitespace cleanup CRIS: macro whitespace fixes in uaccess.h CRIS: uaccess: fix sparse errors CRISv32: Remove unnecessary KERN_INFO from sync_serial CRIS: Fix missing NR_CPUS in menuconfig CRISv32: Avoid warning of unused variable CRIS: Avoid warning in cris mm/fault.c CRIS: Export csum_partial_copy_nocheck
| * CRISv32: Remove unnecessary KERN_INFO from sync_serialMasanari Iida2015-02-141-2/+2
| | | | | | | | | | | | | | Remove unnecessary KERN_INFO in sync_serial.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRISv32: Avoid warning of unused variableJesper Nilsson2015-01-291-0/+4
| | | | | | | | | | | | | | | | | | | | Avoids the warning about: warning: 'bite_in_progress' defined but not used [-Wunused-variable] Variable is only used if the Kconfig CONFIG_ETRAX_WATCHDOG_NICE_DOGGY is set. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* | all arches, signal: move restart_block to struct task_structAndy Lutomirski2015-02-131-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If an attacker can cause a controlled kernel stack overflow, overwriting the restart block is a very juicy exploit target. This is because the restart_block is held in the same memory allocation as the kernel stack. Moving the restart block to struct task_struct prevents this exploit by making the restart_block harder to locate. Note that there are other fields in thread_info that are also easy targets, at least on some architectures. It's also a decent simplification, since the restart code is more or less identical on all architectures. [james.hogan@imgtec.com: metag: align thread_info::supervisor_stack] Signed-off-by: Andy Lutomirski <luto@amacapital.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: David Miller <davem@davemloft.net> Acked-by: Richard Weinberger <richard@nod.at> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Steven Miao <realmz6@gmail.com> Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Tested-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chen Liqin <liqin.linux@gmail.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* VFS: Convert file->f_dentry->d_inode to file_inode()David Howells2015-01-201-1/+1
| | | | | | | | | | Convert file->f_dentry->d_inode to file_inode() so as to get layered filesystems right. Found with: git grep '[.>]f_dentry' Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* CRISv32: Remove last remnants of ETRAX_SPI_MMC_BOARDJesper Nilsson2014-12-201-7/+0
| | | | | | | There are no users of this symbol left. Reported-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* CRISv32: ETRAXFS: Fix recursive spinlockJesper Nilsson2014-12-201-69/+83
| | | | | | | | | | Move pinmux alloc/dealloc code into functions that don't take the spinlock so we can use from code that has the spinlock already. CRISv32 has no working SMP, so spinlocks becomes a NOP, so deadlock was never seen. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* CRISv32: Select MTDRAM for axisflashmapJesper Nilsson2014-12-201-0/+1
| | | | | | Fixes compile error on allmodconfig. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* CRISv32: Implement early consoleJesper Nilsson2014-12-201-26/+56
| | | | Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* CRISv32: Fix declaration mismatchJesper Nilsson2014-12-201-1/+0
| | | | | | | Drop i2c_init from this header, it was declared non-static here, but static in the C-file. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* CRISv32: Rewrite of synchronous serial port driverJesper Nilsson2014-12-201-639/+791
| | | | | | | Make driver possible to load as a module and try to handle locking better. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
* CRISv32: Better handling of watchdog biteJesper Nilsson2014-12-201-11/+17
| | | | | | | | Don't enter watchdog handling if we're already in watchdog handling. Also some minor formatting tweaks. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
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