From: Thorsten Blum Date: Thu, 11 Jul 2024 13:20:01 +0000 (+0200) Subject: dmaengine: dmatest: Explicitly cast divisor to u32 X-Git-Tag: v6.12-rc1~89^2~20 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=da080d987e20a8b20b368c75826226834c9660a3;p=thirdparty%2Fkernel%2Flinux.git dmaengine: dmatest: Explicitly cast divisor to u32 As the comment explains, the while loop ensures that runtime fits into 32 bits. Since do_div() casts the divisor to u32 anyway, explicitly cast runtime to u32 to remove the following Coccinelle/coccicheck warning reported by do_div.cocci: WARNING: do_div() does a 64-by-32 division, please consider using div64_s64 instead Signed-off-by: Thorsten Blum Link: https://lore.kernel.org/r/20240711132001.92157-1-thorsten.blum@toblux.com Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index 1f201a542b374..91b2fbc0b8647 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -500,7 +500,7 @@ static unsigned long long dmatest_persec(s64 runtime, unsigned int val) per_sec *= val; per_sec = INT_TO_FIXPT(per_sec); - do_div(per_sec, runtime); + do_div(per_sec, (u32)runtime); return per_sec; }