| Message ID | f7b81122f7596fa004188bfae68f25a68c2d2392.1637592133.git.geert+renesas@glider.be (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | Non-const bitfield helper conversions | expand |
On 11/22/21 09:54, Geert Uytterhoeven wrote: > Use the field_{get,prep}() helpers, instead of open-coding the same > operations. > > Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> > --- > Compile-tested only. > Marked RFC, as this depends on [PATCH 01/17], but follows a different > path to upstream. > --- > drivers/net/wireless/realtek/rtw89/core.h | 38 ++++------------------- > 1 file changed, 6 insertions(+), 32 deletions(-) Tested-by: Larry Finger <Larry,Finger@lwfinger.net> Larry > > diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h > index c2885e4dd882f045..f9c0300ec373aaf2 100644 > --- a/drivers/net/wireless/realtek/rtw89/core.h > +++ b/drivers/net/wireless/realtek/rtw89/core.h > @@ -2994,81 +2994,55 @@ rtw89_write32_clr(struct rtw89_dev *rtwdev, u32 addr, u32 bit) > static inline u32 > rtw89_read32_mask(struct rtw89_dev *rtwdev, u32 addr, u32 mask) > { > - u32 shift = __ffs(mask); > - u32 orig; > - u32 ret; > - > - orig = rtw89_read32(rtwdev, addr); > - ret = (orig & mask) >> shift; > - > - return ret; > + return field_get(mask, rtw89_read32(rtwdev, addr)); > } > > static inline u16 > rtw89_read16_mask(struct rtw89_dev *rtwdev, u32 addr, u32 mask) > { > - u32 shift = __ffs(mask); > - u32 orig; > - u32 ret; > - > - orig = rtw89_read16(rtwdev, addr); > - ret = (orig & mask) >> shift; > - > - return ret; > + return field_get(mask, rtw89_read16(rtwdev, addr)); > } > > static inline u8 > rtw89_read8_mask(struct rtw89_dev *rtwdev, u32 addr, u32 mask) > { > - u32 shift = __ffs(mask); > - u32 orig; > - u32 ret; > - > - orig = rtw89_read8(rtwdev, addr); > - ret = (orig & mask) >> shift; > - > - return ret; > + return field_get(mask, rtw89_read8(rtwdev, addr)); > } > > static inline void > rtw89_write32_mask(struct rtw89_dev *rtwdev, u32 addr, u32 mask, u32 data) > { > - u32 shift = __ffs(mask); > u32 orig; > u32 set; > > WARN(addr & 0x3, "should be 4-byte aligned, addr = 0x%08x\n", addr); > > orig = rtw89_read32(rtwdev, addr); > - set = (orig & ~mask) | ((data << shift) & mask); > + set = (orig & ~mask) | field_prep(mask, data); > rtw89_write32(rtwdev, addr, set); > } > > static inline void > rtw89_write16_mask(struct rtw89_dev *rtwdev, u32 addr, u32 mask, u16 data) > { > - u32 shift; > u16 orig, set; > > mask &= 0xffff; > - shift = __ffs(mask); > > orig = rtw89_read16(rtwdev, addr); > - set = (orig & ~mask) | ((data << shift) & mask); > + set = (orig & ~mask) | field_prep(mask, data); > rtw89_write16(rtwdev, addr, set); > } > > static inline void > rtw89_write8_mask(struct rtw89_dev *rtwdev, u32 addr, u32 mask, u8 data) > { > - u32 shift; > u8 orig, set; > > mask &= 0xff; > - shift = __ffs(mask); > > orig = rtw89_read8(rtwdev, addr); > - set = (orig & ~mask) | ((data << shift) & mask); > + set = (orig & ~mask) | field_prep(mask, data); > rtw89_write8(rtwdev, addr, set); > } > >
diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h index c2885e4dd882f045..f9c0300ec373aaf2 100644 --- a/drivers/net/wireless/realtek/rtw89/core.h +++ b/drivers/net/wireless/realtek/rtw89/core.h @@ -2994,81 +2994,55 @@ rtw89_write32_clr(struct rtw89_dev *rtwdev, u32 addr, u32 bit) static inline u32 rtw89_read32_mask(struct rtw89_dev *rtwdev, u32 addr, u32 mask) { - u32 shift = __ffs(mask); - u32 orig; - u32 ret; - - orig = rtw89_read32(rtwdev, addr); - ret = (orig & mask) >> shift; - - return ret; + return field_get(mask, rtw89_read32(rtwdev, addr)); } static inline u16 rtw89_read16_mask(struct rtw89_dev *rtwdev, u32 addr, u32 mask) { - u32 shift = __ffs(mask); - u32 orig; - u32 ret; - - orig = rtw89_read16(rtwdev, addr); - ret = (orig & mask) >> shift; - - return ret; + return field_get(mask, rtw89_read16(rtwdev, addr)); } static inline u8 rtw89_read8_mask(struct rtw89_dev *rtwdev, u32 addr, u32 mask) { - u32 shift = __ffs(mask); - u32 orig; - u32 ret; - - orig = rtw89_read8(rtwdev, addr); - ret = (orig & mask) >> shift; - - return ret; + return field_get(mask, rtw89_read8(rtwdev, addr)); } static inline void rtw89_write32_mask(struct rtw89_dev *rtwdev, u32 addr, u32 mask, u32 data) { - u32 shift = __ffs(mask); u32 orig; u32 set; WARN(addr & 0x3, "should be 4-byte aligned, addr = 0x%08x\n", addr); orig = rtw89_read32(rtwdev, addr); - set = (orig & ~mask) | ((data << shift) & mask); + set = (orig & ~mask) | field_prep(mask, data); rtw89_write32(rtwdev, addr, set); } static inline void rtw89_write16_mask(struct rtw89_dev *rtwdev, u32 addr, u32 mask, u16 data) { - u32 shift; u16 orig, set; mask &= 0xffff; - shift = __ffs(mask); orig = rtw89_read16(rtwdev, addr); - set = (orig & ~mask) | ((data << shift) & mask); + set = (orig & ~mask) | field_prep(mask, data); rtw89_write16(rtwdev, addr, set); } static inline void rtw89_write8_mask(struct rtw89_dev *rtwdev, u32 addr, u32 mask, u8 data) { - u32 shift; u8 orig, set; mask &= 0xff; - shift = __ffs(mask); orig = rtw89_read8(rtwdev, addr); - set = (orig & ~mask) | ((data << shift) & mask); + set = (orig & ~mask) | field_prep(mask, data); rtw89_write8(rtwdev, addr, set); }
Use the field_{get,prep}() helpers, instead of open-coding the same operations. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- Compile-tested only. Marked RFC, as this depends on [PATCH 01/17], but follows a different path to upstream. --- drivers/net/wireless/realtek/rtw89/core.h | 38 ++++------------------- 1 file changed, 6 insertions(+), 32 deletions(-)