6.12-stable review patch. If anyone has any objections, please let me know.
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From: Adam Ford aford173@gmail.com
commit 739214dd1c209e34323814fb815fb17cccb9f95b upstream.
The Kernel test robot returns the following warning: do_div() does a 64-by-32 division, please consider using div64_ul instead.
To prevent the 64-by-32 divsion, consolidate both the multiplication and the do_div into one line which explicitly uses u64 sizes.
Fixes: 1951dbb41d1d ("phy: freescale: fsl-samsung-hdmi: Support dynamic integer") Signed-off-by: Adam Ford aford173@gmail.com Reported-by: kernel test robot lkp@intel.com Closes: https://lore.kernel.org/oe-kbuild-all/202412091243.fSObwwPi-lkp@intel.com/ Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
Link: https://lore.kernel.org/r/20241215220555.99113-1-aford173@gmail.com Signed-off-by: Vinod Koul vkoul@kernel.org --- drivers/phy/freescale/phy-fsl-samsung-hdmi.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/phy/freescale/phy-fsl-samsung-hdmi.c +++ b/drivers/phy/freescale/phy-fsl-samsung-hdmi.c @@ -471,8 +471,7 @@ static unsigned long fsl_samsung_hdmi_ph * Fvco = (M * f_ref) / P, * where f_ref is 24MHz. */ - tmp = (u64)_m * 24 * MHZ; - do_div(tmp, _p); + tmp = div64_ul((u64)_m * 24 * MHZ, _p); if (tmp < 750 * MHZ || tmp > 3000 * MHZ) continue;