On Wed, Feb 25, 2015 at 12:59:42PM +0000, Lorenzo Pieralisi wrote:

ARM64 CPUidle driver requires the cpu_do_idle function so that it can
be used to enter the shallowest idle state, and it is declared in
asm/proc-fns.h.

The current ARM64 CPUidle driver does not include asm/proc-fns.h
explicitly and it has so far relied on implicit inclusion from other
header files.

Owing to some header dependencies reshuffling this currently triggers
build failures when CONFIG_ARM64_64K_PAGES=y:

drivers/cpuidle/cpuidle-arm64.c: In function "arm64_enter_idle_state"
drivers/cpuidle/cpuidle-arm64.c:42:3: error: implicit declaration of
function "cpu_do_idle" [-Werror=implicit-function-declaration]
   cpu_do_idle();
   ^

This patch adds the explicit inclusion of the asm/proc-fns.h header file
to fix the build breakage and stop relying on implicit asm/proc-fns.h
inclusion.

Signed-off-by: Laura Abbott <redacted>
[lp: rewrote commit log]
Signed-off-by: Lorenzo Pieralisi <redacted>
Tested-by: Mark Rutland <mark.rutland@arm.com>
---
v2 changes:

Acked-by: Will Deacon <redacted>

Catalin will pick this up for -rc2, I suspect.

Will