tracing: Tag trace_percpu_buffer as a percpu pointer
commitf28439db47
upstream. Tag trace_percpu_buffer as a percpu pointer to resolve warnings reported by sparse: /linux/kernel/trace/trace.c:3218:46: warning: incorrect type in initializer (different address spaces) /linux/kernel/trace/trace.c:3218:46: expected void const [noderef] __percpu *__vpp_verify /linux/kernel/trace/trace.c:3218:46: got struct trace_buffer_struct * /linux/kernel/trace/trace.c:3234:9: warning: incorrect type in initializer (different address spaces) /linux/kernel/trace/trace.c:3234:9: expected void const [noderef] __percpu *__vpp_verify /linux/kernel/trace/trace.c:3234:9: got int * Link: https://lkml.kernel.org/r/ebabd3f23101d89cb75671b68b6f819f5edc830b.1640255304.git.naveen.n.rao@linux.vnet.ibm.com Cc: stable@vger.kernel.org Reported-by: kernel test robot <lkp@intel.com> Fixes:07d777fe8c
("tracing: Add percpu buffers for trace_printk()") Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -3231,7 +3231,7 @@ struct trace_buffer_struct {
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char buffer[4][TRACE_BUF_SIZE];
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};
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static struct trace_buffer_struct *trace_percpu_buffer;
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static struct trace_buffer_struct __percpu *trace_percpu_buffer;
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/*
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* This allows for lockless recording. If we're nested too deeply, then
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@ -3260,7 +3260,7 @@ static void put_trace_buf(void)
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static int alloc_percpu_trace_buffer(void)
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{
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struct trace_buffer_struct *buffers;
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struct trace_buffer_struct __percpu *buffers;
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if (trace_percpu_buffer)
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return 0;
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