| Message ID | 1413856114-3538-1-git-send-email-js07.lee@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c index b9bcc9d..7042334 100644 --- a/arch/arm/mm/copypage-v6.c +++ b/arch/arm/mm/copypage-v6.c @@ -62,7 +62,7 @@ static void discard_old_kernel_data(void *kto) __asm__("mcrr p15, 0, %1, %0, c6 @ 0xec401f06" : : "r" (kto), - "r" ((unsigned long)kto + PAGE_SIZE - L1_CACHE_BYTES) + "r" ((unsigned long)kto + PAGE_SIZE - 1) : "cc"); }
L1_CACHE_BYTES could be larger value than real L1 cache line size. In that case, discard_old_kernel_data function would omit to invalidate last bytes as much as L1_CACHE_BYTES - real cache line size. So fix end address to "to + PAGE_SIZE -1". The bottom bits of the address is LINELEN. that is ignored by mcrr. Signed-off-by: Jungseung Lee <js07.lee@gmail.com> --- arch/arm/mm/copypage-v6.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)