linux/arch/alpha
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
..
boot kbuild: Rename HOSTCFLAGS to KBUILD_HOSTCFLAGS 2018-07-18 01:18:05 +09:00
include dma-mapping: bypass indirect calls for dma-direct 2018-12-13 21:06:18 +01:00
kernel dma-mapping: zero memory returned from dma_alloc_* 2018-12-20 08:13:52 +01:00
lib alpha: Remove custom dec_and_lock() implementation 2018-06-12 23:33:24 +02:00
math-emu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mm mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
defconfig alpha: defconfig: Cleanup from old Kconfig options 2017-09-04 12:04:33 -07:00
Kconfig dma-mapping: always build the direct mapping code 2018-12-13 21:06:11 +01:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile kbuild: add machine size to CHECKFLAGS 2018-06-01 11:36:58 +09:00