[PATCH 1/1] arch: arm: mach-omap2: mmc: Move omap_mmc_notify_cover_event() prototype

[Lee Jones]

When building the kernel with W=1 the build system complains of:

 drivers/mmc/host/omap.c:854:6: warning: no previous prototype for âomap_mmc_notify_cover_eventâ [-Wmissing-prototypes]
 854 | void omap_mmc_notify_cover_event(struct device *dev, int num, int is_closed)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~

If we move the prototype into a shared headerfile the build system
will be satisfied.  Rather than create a whole new headerfile just
for this purpose, it makes sense to use the already existing
mmc-omap.h.

Cc: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Cc: linux-mmc@xxxxxxxxxxxxxxx
Cc: Tony Lindgren <tony@xxxxxxxxxxx>
Cc: linux-omap@xxxxxxxxxxxxxxx
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
---
 arch/arm/mach-omap2/mmc.h              | 4 ----
 include/linux/platform_data/mmc-omap.h | 3 +++
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/mmc.h b/arch/arm/mach-omap2/mmc.h
index 7f4e053c34344..b5533e93cb632 100644
--- a/arch/arm/mach-omap2/mmc.h
+++ b/arch/arm/mach-omap2/mmc.h
@@ -16,7 +16,3 @@ static inline int omap_msdi_reset(struct omap_hwmod *oh)
 	return 0;
 }
 #endif
-
-/* called from board-specific card detection service routine */
-extern void omap_mmc_notify_cover_event(struct device *dev, int slot,
-					int is_closed);
diff --git a/include/linux/platform_data/mmc-omap.h b/include/linux/platform_data/mmc-omap.h
index 9acf0e87aa9be..f0b8947e6b07d 100644
--- a/include/linux/platform_data/mmc-omap.h
+++ b/include/linux/platform_data/mmc-omap.h
@@ -116,3 +116,6 @@ struct omap_mmc_platform_data {
 
 	} slots[OMAP_MMC_MAX_SLOTS];
 };
+
+extern void omap_mmc_notify_cover_event(struct device *dev, int slot,
+					int is_closed);
-- 
2.25.1