From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@roeck-us.net (Guenter Roeck) Date: Wed, 25 Jun 2014 08:03:46 -0700 Subject: [PATCH v2] sched: Fix compiler warnings In-Reply-To: <20140625144955.GP14781@pengutronix.de> References: <1403658329-13196-1-git-send-email-linux@roeck-us.net> <20140625071416.GM14781@pengutronix.de> <53AADC63.8080106@roeck-us.net> <20140625144955.GP14781@pengutronix.de> Message-ID: <53AAE4D2.5020104@roeck-us.net> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 06/25/2014 07:49 AM, Uwe Kleine-K?nig wrote: > Hello Guenter, > > On Wed, Jun 25, 2014 at 07:27:47AM -0700, Guenter Roeck wrote: >>> Maybe the author's intention was: >>> >>> static inline int cpu_corepower_flags(void) __attribute__((const)); >>> >>> ? >>> This specifies that the function has no side effects and the return value >>> only depends on the (here non-existing) function arguments. >>> >> >> Possibly, but either I am missing something or this doesn't compile. > You need to do a separate declaration: > > static inline int cpu_corepower_flags(void) __attribute__((const)); > static inline int cpu_corepower_flags(void) > { > ... Actually turns out one can use __attribute_const__, and it is static inline int __attribute_const__ cpu_corepower_flags(void) which turns out to be widely used. I'll change that and resubmit after testing. Guenter