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    SubjectRe: [PATCH] strstrip incorrectly marked __must_check
    On Tue, 3 Nov 2009 12:04:20 -0700
    Matthew Wilcox <matthew@wil.cx> wrote:

    >
    > static inline void strsrip_tail(char *str)
    > {
    > - char *x __used;
    > - x = strstrip(str);
    > + char *x = strstrip(str);
    > + BUG_ON(x != str);

    That breaks it. It was fine before you did that but now it blows up if
    there are leading spaces.


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