Below is reproduced both with sandbox and R-Car Gen3 arm64 U-Boot:
=================================================================== UBSAN: Undefined behaviour in drivers/mmc/mmc.c:1147:21 left shift of 1 by 31 places cannot be represented in type 'int' ===================================================================
Fixes: 272cc70b211e ("Add MMC Framework") Signed-off-by: Eugeniu Rosca erosca@de.adit-jv.com --- drivers/mmc/mmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index ad429f49c992..447519f46f15 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -1136,7 +1136,7 @@ int mmc_getcd(struct mmc *mmc) #endif
#if !CONFIG_IS_ENABLED(MMC_TINY) -static int sd_switch(struct mmc *mmc, int mode, int group, u8 value, u8 *resp) +static int sd_switch(struct mmc *mmc, uint mode, int group, u8 value, u8 *resp) { struct mmc_cmd cmd; struct mmc_data data;