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linux-stable/arch/xtensa/kernel
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Christoph Hellwig 518a2f1925 dma-mapping: zero memory returned from dma_alloc_* 
If we want to map memory from the DMA allocator to userspace it must be
zeroed at allocation time to prevent stale data leaks.   We already do
this on most common architectures, but some architectures don't do this
yet, fix them up, either by passing GFP_ZERO when we use the normal page
allocator or doing a manual memset otherwise.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Sam Ravnborg <sam@ravnborg.org> [sparc]
2018-12-20 08:13:52 +01:00
..
.gitignore
align.S xtensa: clean up word alignment macros in assembly code 2017-12-10 14:48:53 -08:00
asm-offsets.c Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables 2018-06-14 12:21:18 +09:00
coprocessor.S xtensa: use call instead of callx in assembly code 2017-12-10 14:48:52 -08:00
entry.S Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables 2018-06-14 12:21:18 +09:00
head.S xtensa: fix boot parameters address translation 2018-11-14 00:15:32 -08:00
hw_breakpoint.c perf/arch/xtensa: Implement hw_breakpoint_arch_parse() 2018-06-26 09:07:58 +02:00
irq.c xtensa: drop variant IRQ support 2018-08-20 12:28:05 -07:00
Makefile kbuild/arch/xtensa: Define LINKER_SCRIPT for the linker script 2018-10-04 10:05:38 +02:00
mcount.S xtensa: add static function tracer support 2013-07-08 01:18:57 -07:00
module.c xtensa: clean up custom-controlled debug output 2017-12-16 22:37:08 -08:00
mxhead.S xtensa: drop unused sections and remapped reset handlers 2015-11-03 17:19:39 +03:00
pci-dma.c dma-mapping: zero memory returned from dma_alloc_* 2018-12-20 08:13:52 +01:00
pci.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
perf_event.c cpu/hotplug: Cleanup state names 2016-12-25 10:47:44 +01:00
platform.c xtensa: cleanup ccount frequency tracking 2013-07-08 01:11:37 -07:00
process.c Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables 2018-06-14 12:21:18 +09:00
ptrace.c signal/ptrace: Add force_sig_ptrace_errno_trap and use it where needed 2018-01-22 19:07:11 -06:00
s32c1i_selftest.c xtensa: move S32C1I self-test to a separate file 2016-11-16 15:08:28 -08:00
setup.c xtensa: make bootparam parsing optional 2018-08-20 12:28:05 -07:00
signal.c xtensa: clean up custom-controlled debug output 2017-12-16 22:37:08 -08:00
smp.c sched/headers: Move task->mm handling methods to <linux/sched/mm.h> 2017-03-03 01:43:28 +01:00
stacktrace.c xtensa: clean up access to spilled registers locations 2017-05-01 10:34:43 -07:00
syscall.c mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64() 2018-04-02 20:16:10 +02:00
time.c clocksource/drivers: Rename clocksource_probe to timer_probe 2017-06-14 11:59:16 +02:00
traps.c signal/xtensa: Use force_sig_fault where appropriate 2018-04-25 10:44:12 -05:00
vectors.S xtensa: use call instead of callx in assembly code 2017-12-10 14:48:52 -08:00
vmlinux.lds.S Xtensa fixes and cleanups for v4.20: 2018-11-01 14:32:43 -07:00
xtensa_ksyms.c xtensa: use generic strncpy_from_user with KASAN 2017-12-17 15:34:57 -08:00