Fix the definition for PCPU_NAME_LEN, which is intended to fit
("CPU %d", cpuid) where cpuid <= MAXCPU. 1. sizeof(__XSTRING(MAXCPU) + 1) is a typo: typeof(__XSTRING(...) + 1) is 'char *', so sizeof() will return the size of the pointer, not the size of the string contents. The proper expression should be 'sizeof(__XSTRING(MAXCPU)) + 1'. 2. One should not add one, but substract it: sizeof() accounts for the trailing '\0' and we have two sizeof's, so the size of one '\0' should be substracted -- this will give the maximal string buffer length for CPU with its number, no less, no more. Submitted by: rea
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@ -146,7 +146,7 @@ struct rm_queue {
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struct rm_queue* volatile rmq_prev;
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};
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#define PCPU_NAME_LEN (sizeof("CPU ") + sizeof(__XSTRING(MAXCPU) + 1))
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#define PCPU_NAME_LEN (sizeof("CPU ") + sizeof(__XSTRING(MAXCPU)) - 1)
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/*
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* This structure maps out the global data that needs to be kept on a
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