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branch tracer, intel-iommu: fix build with CONFIG_BRANCH_TRACER=y
Fix the branch tracer barfing on comma statements within if () statements. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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1 changed files with 3 additions and 1 deletions
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@ -115,7 +115,9 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
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* "Define 'is'", Bill Clinton
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* "Define 'if'", Steven Rostedt
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*/
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#define if(cond) if (__builtin_constant_p((cond)) ? !!(cond) : \
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#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
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#define __trace_if(cond) \
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if (__builtin_constant_p((cond)) ? !!(cond) : \
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({ \
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int ______r; \
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static struct ftrace_branch_data \
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