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Date: Fri, 4 Dec 2020 00:07:30 +0100 From: Arnd Bergmann <arnd@...nel.org> To: Benoit Parrot <bparrot@...com>, Mauro Carvalho Chehab <mchehab@...nel.org> Cc: Arnd Bergmann <arnd@...db.de>, Hans Verkuil <hverkuil-cisco@...all.nl>, Laurent Pinchart <laurent.pinchart@...asonboard.com>, Sakari Ailus <sakari.ailus@...ux.intel.com>, linux-media@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] media: ti-vpe: cal: avoid FIELD_GET assertion From: Arnd Bergmann <arnd@...db.de> 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@...db.de> --- drivers/media/platform/ti-vpe/cal.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/platform/ti-vpe/cal.h b/drivers/media/platform/ti-vpe/cal.h index 4123405ee0cf..20d07311d222 100644 --- 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_dev *cal, u32 offset, u32 val) 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)); } -- 2.27.0
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