xtensa: use __memset in __xtensa_clear_user
memset on xtensa is capable of accessing user memory, but KASAN checks
if memset function is actually used for that and reports it as an error:
==================================================================
BUG: KASAN: user-memory-access in padzero+0x4d/0x58
Write of size 519 at addr 0049ddf9 by task init/1
Call Trace:
[<b0189978>] kasan_report+0x160/0x238
[<b0188818>] check_memory_region+0xf8/0x100
[<b018891c>] memset+0x20/0x34
[<b0238b71>] padzero+0x4d/0x58
==================================================================
Use __memset in __xtensa_clear_user to avoid that.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
1 file changed