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authorKrzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>2026-03-17 13:36:51 +0100
committerBjorn Andersson <andersson@kernel.org>2026-04-06 09:37:51 -0500
commit90dacbf4bf13410c727ffaca8fe3ce3276ae58c2 (patch)
tree2f9d45bdfb66047a7d80121eefef0026326cad38
parent4251dab9d176212afdf4ced263b59bc0d5292c7f (diff)
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 <mathieu.poirier@linaro.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Link: https://lore.kernel.org/r/20260317-rpmsg-send-const-v3-2-4d7fd27f037f@oss.qualcomm.com Signed-off-by: Bjorn Andersson <andersson@kernel.org>
-rw-r--r--drivers/remoteproc/mtk_scp.c2
-rw-r--r--include/linux/rpmsg/mtk_rpmsg.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index 4651311aeb07..b5c052c72a1b 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 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;
};