Re: [PATCH 05/13] cpufreq/arch: powerpc: pasemi: Move prototypes to shared header

On Tue, Jul 14, 2020 at 8:07 PM Viresh Kumar [off-list ref] wrote:

quoted

On 14-07-20, 15:50, Lee Jones wrote:

quoted

If function callers and providers do not share the same prototypes the
compiler complains of missing prototypes.  Fix this by moving the
already existing prototypes out to a mutually convenient location.

Fixes the following W=1 kernel build warning(s):

 drivers/cpufreq/pasemi-cpufreq.c:109:5: warning: no previous prototype for ‘check_astate’ [-Wmissing-prototypes]
 109 | int check_astate(void)
 | ^~~~~~~~~~~~
 drivers/cpufreq/pasemi-cpufreq.c:114:6: warning: no previous prototype for ‘restore_astate’ [-Wmissing-prototypes]
 114 | void restore_astate(int cpu)
 | ^~~~~~~~~~~~~~

Cc: Olof Johansson <redacted>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <redacted>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Lee Jones <redacted>
---
 arch/powerpc/platforms/pasemi/pasemi.h    | 15 ------------

Is there no sane way we can include this file directly to the cpufreq
file ?

Yep. arch/powerpc seems to be in the search path for modules on powerpc, so:

diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index c66f566a854cb..815645170c4de 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c

@@ -22,6 +22,8 @@
 #include <asm/time.h>
 #include <asm/smp.h>

+#include <platforms/pasemi/pasemi.h>
+
 #define SDCASR_REG             0x0100
 #define SDCASR_REG_STRIDE      0x1000
 #define SDCPWR_CFGA0_REG       0x0100