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| author | Shan Wei <davidshan@tencent.com> | 2012-11-13 01:53:04 (GMT) |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-01-21 18:22:30 (GMT) |
| commit | d8a0349c0cea477322c66ea9362f10c62fad5f62 (patch) | |
| tree | ca9bd84c3629bc166f407c34055eb809e416d430 /kernel/softirq.c | |
| parent | 771e03842a9e98a1c2013ca1ed8bb2793488f3e5 (diff) | |
| download | linux-d8a0349c0cea477322c66ea9362f10c62fad5f62.tar.xz | |
tracing: Use this_cpu_ptr per-cpu helper
typeof(&buffer) is a pointer to array of 1024 char, or char (*)[1024].
But, typeof(&buffer[0]) is a pointer to char which match the return type of get_trace_buf().
As well-known, the value of &buffer is equal to &buffer[0].
so return this_cpu_ptr(&percpu_buffer->buffer[0]) can avoid type cast.
Link: http://lkml.kernel.org/r/50A1A800.3020102@gmail.com
Reviewed-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Shan Wei <davidshan@tencent.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/softirq.c')
0 files changed, 0 insertions, 0 deletions