From 90dacbf4bf13410c727ffaca8fe3ce3276ae58c2 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Tue, 17 Mar 2026 13:36:51 +0100 Subject: [PATCH] remoteproc: mtk_scp: Constify buffer passed to scp_send_ipi() scp_send_ipi() should only send the passed buffer, without modifying its contents, so mark pointer 'buf' as pointer to const. Acked-by: Mathieu Poirier Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20260317-rpmsg-send-const-v3-2-4d7fd27f037f@oss.qualcomm.com Signed-off-by: Bjorn Andersson --- 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 4651311aeb074..b5c052c72a1b2 100644 --- a/drivers/remoteproc/mtk_scp.c +++ b/drivers/remoteproc/mtk_scp.c @@ -1078,7 +1078,7 @@ 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 363b60178040b..badcbc89917fc 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; }; -- 2.47.3