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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-05-16 13:31:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-05-16 13:31:40 -0700 |
| commit | 26b089a7fc3301d8f53f99dd3607513d7700b505 (patch) | |
| tree | be7f0a6b73b83898550b061eec9ec280d787d182 /arch/csky/lib/usercopy.c | |
| parent | 5c33696f2b0965f4354462f478dedc9b5e7b8e77 (diff) | |
| parent | 51bb38cb78363fdad1f89e87357b7bc73e39ba88 (diff) | |
Merge tag 'csky-for-linus-5.7-rc6' of git://github.com/c-sky/csky-linux
Pull csky updates from Guo Ren:
- fix for copy_from/to_user (a hard-to-find bug, thx Viro)
- fix for calltrace panic without FRAME_POINT
- two fixes for perf
- two build fixes
- four fixes for non-fatal bugs (msa, rm dis_irq, cleanup psr,
gdbmacros.txt)
* tag 'csky-for-linus-5.7-rc6' of git://github.com/c-sky/csky-linux:
csky: Fixup raw_copy_from_user()
csky: Fixup gdbmacros.txt with name sp in thread_struct
csky: Fixup remove unnecessary save/restore PSR code
csky: Fixup remove duplicate irq_disable
csky: Fixup calltrace panic
csky: Fixup perf callchain unwind
csky: Fixup msa highest 3 bits mask
csky: Fixup perf probe -x hungup
csky: Fixup compile error for abiv1 entry.S
csky/ftrace: Fixup error when disable CONFIG_DYNAMIC_FTRACE
Diffstat (limited to 'arch/csky/lib/usercopy.c')
| -rw-r--r-- | arch/csky/lib/usercopy.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/csky/lib/usercopy.c b/arch/csky/lib/usercopy.c index 647a23986fb50..3c9bd645e6431 100644 --- a/arch/csky/lib/usercopy.c +++ b/arch/csky/lib/usercopy.c @@ -7,10 +7,7 @@ unsigned long raw_copy_from_user(void *to, const void *from, unsigned long n) { - if (access_ok(from, n)) - __copy_user_zeroing(to, from, n); - else - memset(to, 0, n); + ___copy_from_user(to, from, n); return n; } EXPORT_SYMBOL(raw_copy_from_user); @@ -18,8 +15,7 @@ EXPORT_SYMBOL(raw_copy_from_user); unsigned long raw_copy_to_user(void *to, const void *from, unsigned long n) { - if (access_ok(to, n)) - __copy_user(to, from, n); + ___copy_to_user(to, from, n); return n; } EXPORT_SYMBOL(raw_copy_to_user); |