scp_ipi_send() should only send the passed buffer, without modifying its contents, so mark pointer 'buf' as pointer to const.
Signed-off-by: Krzysztof Kozlowski <[email protected]> --- Patch necessary for the further patches, please keep with the rest. --- drivers/remoteproc/mtk_scp_ipi.c | 2 +- include/linux/remoteproc/mtk_scp.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/remoteproc/mtk_scp_ipi.c b/drivers/remoteproc/mtk_scp_ipi.c index c068227e251e..bc1ee82cff36 100644 --- a/drivers/remoteproc/mtk_scp_ipi.c +++ b/drivers/remoteproc/mtk_scp_ipi.c @@ -156,7 +156,7 @@ EXPORT_SYMBOL_GPL(scp_ipi_unlock); * * Return: 0 if sending data successfully, -error on error. **/ -int scp_ipi_send(struct mtk_scp *scp, u32 id, void *buf, unsigned int len, +int scp_ipi_send(struct mtk_scp *scp, u32 id, const void *buf, unsigned int len, unsigned int wait) { struct mtk_share_obj __iomem *send_obj = scp->send_buf; diff --git a/include/linux/remoteproc/mtk_scp.h b/include/linux/remoteproc/mtk_scp.h index 344ff41c22c7..4070537d6542 100644 --- a/include/linux/remoteproc/mtk_scp.h +++ b/include/linux/remoteproc/mtk_scp.h @@ -58,7 +58,7 @@ int scp_ipi_register(struct mtk_scp *scp, u32 id, scp_ipi_handler_t handler, void *priv); void scp_ipi_unregister(struct mtk_scp *scp, u32 id); -int scp_ipi_send(struct mtk_scp *scp, u32 id, void *buf, unsigned int len, +int scp_ipi_send(struct mtk_scp *scp, u32 id, const void *buf, unsigned int len, unsigned int wait); unsigned int scp_get_vdec_hw_capa(struct mtk_scp *scp); -- 2.48.1
