From: Arnd Bergmann <arnd@xxxxxxxx>
commit d7a7d721064c548042b019cd0d4d62e0bb878d71 upstream.
FIELD_GET() must only be used with a mask that is a compile-time
constant:
drivers/media/platform/ti-vpe/cal.h: In function 'cal_read_field':
include/linux/compiler_types.h:320:38: error: call to '__compiletime_assert_247' declared with attribute error: FIELD_GET: mask is not constant
include/linux/bitfield.h:46:3: note: in expansion of macro 'BUILD_BUG_ON_MSG'
46 | BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask), \
| ^~~~~~~~~~~~~~~~
drivers/media/platform/ti-vpe/cal.h:220:9: note: in expansion of macro 'FIELD_GET'
220 | return FIELD_GET(mask, cal_read(cal, offset));
| ^~~~~~~~~
The problem here is that the function is not always inlined. Mark it
__always_inline to avoid the problem.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Cc: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/platform/ti-vpe/cal.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/platform/ti-vpe/cal.h
+++ b/drivers/media/platform/ti-vpe/cal.h
@@ -215,7 +215,7 @@ static inline void cal_write(struct cal_
iowrite32(val, cal->base + offset);
}
-static inline u32 cal_read_field(struct cal_dev *cal, u32 offset, u32 mask)
+static __always_inline u32 cal_read_field(struct cal_dev *cal, u32 offset, u32 mask)
{
return FIELD_GET(mask, cal_read(cal, offset));
}
