Messages in this thread Patch in this message | | | Date | Sat, 27 Dec 2008 20:11:11 +0100 | Subject | Re: [PATCH 03/27] drivers/net: fix sparse warning: returning void-valued expression | From | Hannes Eder <> |
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On 12/26/08, Randy Dunlap <rdunlap@xenotime.net> wrote: > On Thu, 25 Dec 2008 16:17:40 -0800 (PST) > > David Miller <davem@davemloft.net> wrote: > > > > From: Hannes Eder <hannes@hanneseder.net> > > Date: Mon, 22 Dec 2008 20:15:17 +0100 > > > > > Fix this sparse warning: > > > > > > drivers/net/niu.c:8850:2: warning: returning void-valued expression > > > > > > Signed-off-by: Hannes Eder <hannes@hanneseder.net> > > > > Can we just fix sparse not to generate this warning? It's > > marginal, at best. C++ even explicitly defines this as valid > > and last time I brought this up Linus even agreed. > > > Ack, I discussed it with him also and he thought that > they were just fine as they were... > > > > The types match, the function returns void and it is returning a void, > > what is the problem?
In fact there is no need to _fix_ sparse, as there is a command line option -Wreturn-void / -Wno-return-void, so we could change the Makefile, see diff below.
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diff --git a/Makefile b/Makefile index 64f14aa..cc62984 100644 --- a/Makefile +++ b/Makefile @@ -321,7 +321,7 @@ KALLSYMS = scripts/kallsyms PERL = perl CHECK = sparse -CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF) +CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise -Wno-return-void $(CF) MODFLAGS = -DMODULE CFLAGS_MODULE = $(MODFLAGS) AFLAGS_MODULE = $(MODFLAGS)
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