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| author |   Christoph Hellwig <hch@lst.de> | 2020-06-17 09:37:53 +0200 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-17 10:57:41 -0700 |
| commit | fe557319aa06c23cffc9346000f119547e0f289a (patch) | |
| tree | 575c46f0a54b789a7f942e3366ade6f0f90f6212 /arch/arm/kernel/ftrace.c | |
| parent | Linux 5.8-rc1 (diff) | |
| download | linux-dev-fe557319aa06c23cffc9346000f119547e0f289a.tar.xz linux-dev-fe557319aa06c23cffc9346000f119547e0f289a.zip | |
maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
Better describe what these functions do.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm/kernel/ftrace.c')
| -rw-r--r-- | arch/arm/kernel/ftrace.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c index 10499d44964a..9a79ef6b1876 100644 --- a/arch/arm/kernel/ftrace.c +++ b/arch/arm/kernel/ftrace.c @@ -84,7 +84,8 @@ static int ftrace_modify_code(unsigned long pc, unsigned long old, old = __opcode_to_mem_arm(old); if (validate) { - if (probe_kernel_read(&replaced, (void *)pc, MCOUNT_INSN_SIZE)) + if (copy_from_kernel_nofault(&replaced, (void *)pc, + MCOUNT_INSN_SIZE)) return -EFAULT; if (replaced != old) |