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1b83a9f41b
The kernel test robot reports the following error when building on Hexagon with hexagon-allmodconfig. ERROR: modpost: "__hexagon_divdi3" [drivers/media/platform/amlogic/c3/mipi-csi2/c3-mipi-csi2.ko] undefined! The error is caused by using DIV_ROUND_UP() with a 64 bits divisor with a 32-bit dividend, which on Hexagon and clang-17 is resolved with a call to the __hexagon_divdi3() helper function, part of the compiler support library and not available when building Linux. Use DIV_ROUND_UP_ULL() to fix the build error and avoid calling the __hexagon_divdi3() helper function. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202505101334.UHxNcUUO-lkp@intel.com/ Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> |
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