--- a/include/uapi/linux/spi/spidev.h +++ b/include/uapi/linux/spi/spidev.h @@ -111,7 +111,7 @@ struct spi_ioc_transfer { /* not all platforms use <asm-generic/ioctl.h> or _IOC_TYPECHECK() ... */ #define SPI_MSGSIZE(N) \ - ((((N)*(sizeof (struct spi_ioc_transfer))) < (1 << _IOC_SIZEBITS)) \ + ((((N)*(sizeof (struct spi_ioc_transfer))) < (1 << 13)) \ ? ((N)*(sizeof (struct spi_ioc_transfer))) : 0) #define SPI_IOC_MESSAGE(N) _IOW(SPI_IOC_MAGIC, 0, char[SPI_MSGSIZE(N)])