[PATCH 1/2] spi: aspeed: Fix missing __iomem annotation in output transfer path
Cédric Le Goater
clg at kaod.org
Mon May 18 22:15:58 PDT 2026
On 5/18/26 11:57, Chin-Ting Kuo wrote:
> The dst parameter of aspeed_spi_user_transfer_tx() is an MMIO address
> obtained from chip->ahb_base, but it was typed as void * instead of
> void __iomem *. This caused a sparse warning report. Fix the
> parameter type to void __iomem * and drop the now-unnecessary
> cast at the call site.
>
> Reported-by: kernel test robot <lkp at intel.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202605180441.uD3toFRJ-lkp@intel.com/
> Signed-off-by: Chin-Ting Kuo <chin-ting_kuo at aspeedtech.com>
> ---
> drivers/spi/spi-aspeed-smc.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/spi/spi-aspeed-smc.c b/drivers/spi/spi-aspeed-smc.c
> index c21323e07d3c..808659a1f460 100644
> --- a/drivers/spi/spi-aspeed-smc.c
> +++ b/drivers/spi/spi-aspeed-smc.c
> @@ -891,7 +891,7 @@ static int aspeed_spi_user_unprepare_msg(struct spi_controller *ctlr,
> static void aspeed_spi_user_transfer_tx(struct aspeed_spi *aspi,
> struct spi_device *spi,
> const u8 *tx_buf, u8 *rx_buf,
> - void *dst, u32 len)
> + void __iomem *dst, u32 len)
> {
> const struct aspeed_spi_data *data = aspi->data;
> bool full_duplex_transfer = data->full_duplex && tx_buf == rx_buf;
> @@ -936,7 +936,7 @@ static int aspeed_spi_user_transfer(struct spi_controller *ctlr,
> aspeed_spi_set_io_mode(chip, CTRL_IO_QUAD_DATA);
>
> aspeed_spi_user_transfer_tx(aspi, spi, tx_buf, rx_buf,
> - (void *)ahb_base, xfer->len);
> + ahb_base, xfer->len);
> }
>
> if (rx_buf && rx_buf != tx_buf) {
Reviewed-by: Cédric Le Goater <clg at kaod.org>
Thanks,
C.
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