diff options
| author | Jordan Niethe <jniethe5@gmail.com> | 2020-05-06 13:40:36 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-05-19 00:10:37 +1000 |
| commit | 5249385ad7f0ac178433f0ae9cc5b64612c8ff77 (patch) | |
| tree | 3624e16bb981dd5da8e74ae28b08695bf42e878c /arch/powerpc/kernel/hw_breakpoint.c | |
| parent | a8646f43ba5046e7f5c4396125d5136bfcb17b49 (diff) | |
powerpc: Define and use get_user_instr() et. al.
Define specialised get_user_instr(), __get_user_instr() and
__get_user_instr_inatomic() macros for reading instructions from user
and/or kernel space.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Reviewed-by: Alistair Popple <alistair@popple.id.au>
[mpe: Squash in addition of get_user_instr() & __user annotations]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200506034050.24806-17-jniethe5@gmail.com
Diffstat (limited to 'arch/powerpc/kernel/hw_breakpoint.c')
| -rw-r--r-- | arch/powerpc/kernel/hw_breakpoint.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/hw_breakpoint.c b/arch/powerpc/kernel/hw_breakpoint.c index 2db9a7ac7bcb..423603c92c0f 100644 --- a/arch/powerpc/kernel/hw_breakpoint.c +++ b/arch/powerpc/kernel/hw_breakpoint.c @@ -249,7 +249,7 @@ static bool stepping_handler(struct pt_regs *regs, struct perf_event *bp, struct instruction_op op; unsigned long addr = info->address; - if (__get_user_inatomic(instr.val, (unsigned int *)regs->nip)) + if (__get_user_instr_inatomic(instr, (void __user *)regs->nip)) goto fail; ret = analyse_instr(&op, regs, instr); |