From: Krzysztof Kozlowski Date: Tue, 17 Mar 2026 12:36:50 +0000 (+0100) Subject: remoteproc: mtk_scp_ipi: Constify buffer passed to scp_ipi_send() X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=4251dab9d176212afdf4ced263b59bc0d5292c7f;p=thirdparty%2Fkernel%2Flinux.git remoteproc: mtk_scp_ipi: Constify buffer passed to scp_ipi_send() scp_ipi_send() 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-v3-1-4d7fd27f037f@oss.qualcomm.com Signed-off-by: Bjorn Andersson --- diff --git a/drivers/remoteproc/mtk_scp_ipi.c b/drivers/remoteproc/mtk_scp_ipi.c index 7a37e273b3af8..ee2f1121411fc 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 344ff41c22c70..4070537d6542d 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);