Sparce doesn't seem to like using be32_to_cpu and cpu_to_be32 to convert values for the MMIO gmux to/from the host architecture. Instead use iowrite32be and ioread32be to always convert, which should be fine because apple-gmux is only used on x86 with is always little endian. Reported-by: kernel test robot <lkp@xxxxxxxxx> Closes: https://lore.kernel.org/oe-kbuild-all/202305161712.5l3f4iI4-lkp@xxxxxxxxx/ Signed-off-by: Orlando Chamberlain <orlandoch.dev@xxxxxxxxx> --- drivers/platform/x86/apple-gmux.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c index e02b4aea4f1e..cadbb557a108 100644 --- a/drivers/platform/x86/apple-gmux.c +++ b/drivers/platform/x86/apple-gmux.c @@ -278,7 +278,7 @@ static u32 gmux_mmio_read32(struct apple_gmux_data *gmux_data, int port) iowrite8(GMUX_MMIO_READ | sizeof(val), gmux_data->iomem_base + GMUX_MMIO_COMMAND_SEND); gmux_mmio_wait(gmux_data); - val = be32_to_cpu(ioread32(gmux_data->iomem_base)); + val = ioread32be(gmux_data->iomem_base); mutex_unlock(&gmux_data->index_lock); return val; @@ -288,7 +288,7 @@ static void gmux_mmio_write32(struct apple_gmux_data *gmux_data, int port, u32 val) { mutex_lock(&gmux_data->index_lock); - iowrite32(cpu_to_be32(val), gmux_data->iomem_base); + iowrite32be(val, gmux_data->iomem_base); iowrite8(port & 0xff, gmux_data->iomem_base + GMUX_MMIO_PORT_SELECT); iowrite8(GMUX_MMIO_WRITE | sizeof(val), gmux_data->iomem_base + GMUX_MMIO_COMMAND_SEND); -- 2.41.0
