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charset="utf-8" Avoid unnecessary nested min()/max() which results in egregious macro expansion. Use clamp_t() as this introduces the least possible expansion. Not doing so results in an impact on build times. This resolves an issue with slackware 15.0 32-bit compilation as reported by Richard Narron. Presumably the min/max fixups would be difficult to backport, this patch should be easier and fix's Richard's problem in 5.15. Reported-by: Richard Narron Closes: https://lore.kernel.org/all/4a5321bd-b1f-1832-f0c-cea8694dc5aa@aaaz= en.com/ Fixes: 867046cc7027 ("minmax: relax check to allow comparison between unsig= ned arguments and signed constants") Cc: stable@vger.kernel.org Signed-off-by: Lorenzo Stoakes Reviewed-by: Hans de Goede --- .../staging/media/atomisp/pci/sh_css_frac.h | 26 ++++++++++++++----- 1 file changed, 19 insertions(+), 7 deletions(-) diff --git a/drivers/staging/media/atomisp/pci/sh_css_frac.h b/drivers/stag= ing/media/atomisp/pci/sh_css_frac.h index b90b5b330dfa..8ba65161f7a9 100644 --- a/drivers/staging/media/atomisp/pci/sh_css_frac.h +++ b/drivers/staging/media/atomisp/pci/sh_css_frac.h @@ -32,12 +32,24 @@ #define uISP_VAL_MAX ((unsigned int)((1 << uISP_REG_BIT) - 1)) /* a:fraction bits for 16bit precision, b:fraction bits for ISP precision = */ -#define sDIGIT_FITTING(v, a, b) \ - min_t(int, max_t(int, (((v) >> sSHIFT) >> max(sFRACTION_BITS_FITTING(a) -= (b), 0)), \ - sISP_VAL_MIN), sISP_VAL_MAX) -#define uDIGIT_FITTING(v, a, b) \ - min((unsigned int)max((unsigned)(((v) >> uSHIFT) \ - >> max((int)(uFRACTION_BITS_FITTING(a) - (b)), 0)), \ - uISP_VAL_MIN), uISP_VAL_MAX) +static inline int sDIGIT_FITTING(int v, int a, int b) +{ + int fit_shift =3D sFRACTION_BITS_FITTING(a) - b; + + v >>=3D sSHIFT; + v >>=3D fit_shift > 0 ? fit_shift : 0; + + return clamp_t(int, v, sISP_VAL_MIN, sISP_VAL_MAX); +} + +static inline unsigned int uDIGIT_FITTING(unsigned int v, int a, int b) +{ + int fit_shift =3D uFRACTION_BITS_FITTING(a) - b; + + v >>=3D uSHIFT; + v >>=3D fit_shift > 0 ? fit_shift : 0; + + return clamp_t(unsigned int, v, uISP_VAL_MIN, uISP_VAL_MAX); +} #endif /* __SH_CSS_FRAC_H */ -- 2.46.0