Messages in this thread | | | Date | Sat, 10 May 2014 12:16:06 +0200 | From | Fabian Frederick <> | Subject | Re: [PATCH 1/1] KERNEL: add __attribute__ in c file |
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On Wed, 7 May 2014 15:25:57 -0700 Andrew Morton <akpm@linux-foundation.org> wrote:
> On Wed, 7 May 2014 22:33:39 +0200 Fabian Frederick <fabf@skynet.be> wrote: > > > This patch fixes a sparse warning about noreturn attribute only > > featuring in module.h > > > > kernel/module.c:212:6: error: symbol '__module_put_and_exit' redeclared with > > different type (originally declared at include/linux/module.h:449)- > > different modifiers > > > > ... > > > > --- a/include/linux/module.h > > +++ b/include/linux/module.h > > @@ -446,8 +446,8 @@ int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *, > > struct module *, unsigned long), > > void *data); > > > > -extern void __module_put_and_exit(struct module *mod, long code) > > - __attribute__((noreturn)); > > +extern void __attribute__((noreturn)) __module_put_and_exit(struct module *mod, > > + long code); > > #define module_put_and_exit(code) __module_put_and_exit(THIS_MODULE, code) > > > > #ifdef CONFIG_MODULE_UNLOAD > > diff --git a/kernel/module.c b/kernel/module.c > > index 079c461..7d78872 100644 > > --- a/kernel/module.c > > +++ b/kernel/module.c > > @@ -209,7 +209,8 @@ static inline void add_taint_module(struct module *mod, unsigned flag, > > * A thread that wants to hold a reference to a module only while it > > * is running can call this to safely exit. nfsd and lockd use this. > > */ > > -void __module_put_and_exit(struct module *mod, long code) > > +void __attribute__((noreturn)) __module_put_and_exit(struct module *mod, > > + long code) > > { > > Can we use __noreturn here? Well it works(compilation/no more sparse warning) but after looking at some documentation, it looks more like some sparse false positive.
Fabian
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