Messages in this thread | | | Subject | Re: [PATCH] string.h: Mark 34 functions with __must_check | From | Joe Perches <> | Date | Wed, 09 Oct 2019 09:38:33 -0700 |
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On Wed, 2019-10-09 at 09:13 -0700, Nick Desaulniers wrote: > On Wed, Oct 9, 2019 at 8:09 AM Steven Rostedt <rostedt@goodmis.org> wrote: > > On Wed, 9 Oct 2019 14:14:28 +0200 Markus Elfring <Markus.Elfring@web.de> wrote: [] > > > Several functions return values with which useful data processing > > > should be performed. These values must not be ignored then. > > > Thus use the annotation “__must_check” in the shown function declarations. [] > > I'm curious. How many warnings showed up when you applied this patch? > > I got zero for x86_64 and arm64 defconfig builds of linux-next with > this applied. Hopefully that's not an argument against the more > liberal application of it? I view __must_check as a good thing, and > encourage its application, unless someone can show that a certain > function would be useful to call without it.
stylistic trivia, neither agreeing nor disagreeing with the patch as I generally avoid reading Markus' patches.
I believe __must_check is best placed before the return type as that makes grep for function return type easier to parse.
i.e. prefer [static inline] __must_check <type> <function>(<args...>); over [static inline] <type> __must_check <function>(<args...>);
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