Commit 90dacbf4 authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Bjorn Andersson
Browse files

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: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: default avatarKrzysztof 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: default avatarBjorn Andersson <andersson@kernel.org>
parent 4251dab9

drivers/remoteproc/mtk_scp.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

include/linux/rpmsg/mtk_rpmsg.h

+1 −1
Original line number Diff line number Diff line
@@ -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;

};