scp_send_ipi() 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.c | 2 +- include/linux/rpmsg/mtk_rpmsg.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c index db8fd045468d..95d5e0138a15 100644 --- a/drivers/remoteproc/mtk_scp.c +++ b/drivers/remoteproc/mtk_scp.c @@ -1061,7 +1061,7 @@ static void scp_unregister_ipi(struct platform_device *pdev, u32 id) scp_ipi_unregister(scp, id); } -static int scp_send_ipi(struct platform_device *pdev, u32 id, void *buf, +static int scp_send_ipi(struct platform_device *pdev, u32 id, const void *buf, unsigned int len, unsigned int wait) { struct mtk_scp *scp = platform_get_drvdata(pdev); diff --git a/include/linux/rpmsg/mtk_rpmsg.h b/include/linux/rpmsg/mtk_rpmsg.h index 363b60178040..badcbc89917f 100644 --- a/include/linux/rpmsg/mtk_rpmsg.h +++ b/include/linux/rpmsg/mtk_rpmsg.h @@ -25,7 +25,7 @@ struct mtk_rpmsg_info { ipi_handler_t handler, void *priv); void (*unregister_ipi)(struct platform_device *pdev, u32 id); int (*send_ipi)(struct platform_device *pdev, u32 id, - void *buf, unsigned int len, unsigned int wait); + const void *buf, unsigned int len, unsigned int wait); int ns_ipi_id; }; -- 2.48.1
