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remoteproc: mtk_scp_ipi: Constify buffer passed to scp_ipi_send()

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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 <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-v3-1-4d7fd27f037f@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Krzysztof Kozlowski
2026-03-17 13:36:50 +01:00
committed by Bjorn Andersson
parent 82c43bae47
commit 4251dab9d1
2 changed files with 2 additions and 2 deletions
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2
drivers/remoteproc/mtk_scp_ipi.c
View File

@@ -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;

2
include/linux/remoteproc/mtk_scp.h
View File

@@ -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);