The string.h header file is needed for the memset() definition. The RT build fails because it is not pulled in via other header files.
Cc: Lee Jones <[email protected]> Cc: Nicolas Ferre <[email protected]> Cc: Alexandre Belloni <[email protected]> Cc: [email protected] Signed-off-by: Sebastian Andrzej Siewior <[email protected]> --- drivers/mfd/atmel-smc.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/mfd/atmel-smc.c +++ b/drivers/mfd/atmel-smc.c @@ -12,6 +12,7 @@ */ #include <linux/mfd/syscon/atmel-smc.h> +#include <linux/string.h> /** * atmel_smc_cs_conf_init - initialize a SMC CS conf
