| Message ID | 20220926023750.21183-1-chunfeng.yun@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [next] phy: mediatek: fix build warning of FIELD_PREP() | expand |
diff --git a/drivers/phy/mediatek/phy-mtk-io.h b/drivers/phy/mediatek/phy-mtk-io.h index 9e9c6f221c92..d20ad5e5be81 100644 --- a/drivers/phy/mediatek/phy-mtk-io.h +++ b/drivers/phy/mediatek/phy-mtk-io.h @@ -37,9 +37,10 @@ static inline void mtk_phy_update_bits(void __iomem *reg, u32 mask, u32 val) } /* field @mask shall be constant and continuous */ -static inline void mtk_phy_update_field(void __iomem *reg, u32 mask, u32 val) -{ - mtk_phy_update_bits(reg, mask, FIELD_PREP(mask, val)); -} +#define mtk_phy_update_field(reg, mask, val) \ +({ \ + typeof(mask) mask_ = (mask); \ + mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \ +}) #endif
Change the inline function mtk_phy_update_field() into a macro to avoid check warning of FIELD_PREP() with compiler parameter -Wtautological-constant-out-of-range-compare the warning is caused by mask check: "BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \" Fixes: 29c07477556e ("phy: mediatek: add a new helper to update bitfield") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> --- drivers/phy/mediatek/phy-mtk-io.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)