Huacai Chen 18f3e95b90 MIPS: io: Add barrier after register read in inX() ... While a barrier is present in the outX() functions before the register write, a similar barrier is missing in the inX() functions after the register read. This could allow memory accesses following inX() to observe stale data. This patch is very similar to commit a1cc7034e3 ("MIPS: io: Add barrier after register read in readX()"). Because war_io_reorder_wmb() is both used by writeX() and outX(), if readX() need a barrier then so does inX(). Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen <chenhc@lemote.com> Patchwork: https://patchwork.linux-mips.org/patch/19516/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: James Hogan <james.hogan@mips.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Cc: Huacai Chen <chenhuacai@gmail.com>		2018-06-19 19:39:19 -07:00
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asm	MIPS: io: Add barrier after register read in inX()	2018-06-19 19:39:19 -07:00
uapi/asm	y2038: mips: Extend sysvipc data structures	2018-04-20 16:20:04 +02:00