Messages in this thread | | | Date | Fri, 30 Nov 2012 14:38:14 +0800 | From | Shan Wei <> | Subject | Re: [PATCH v4 7/9] trace: use this_cpu_ptr per-cpu helper |
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Shan Wei said, at 2012/11/16 16:34: > Shan Wei said, at 2012/11/13 9:53: >> From: Shan Wei <davidshan@tencent.com> >> >> 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. >> >> Signed-off-by: Shan Wei <davidshan@tencent.com> > > Steven Rostedt, would you like to pick it up to your tree?
ping......................
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