github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-31 18:43:33 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

remoteproc: mediatek: Zero out only remaining bytes of IPI buffer

Browse Source 
In scp_ipi_handler(), instead of zeroing out the entire shared
buffer, which may be as large as 600 bytes, overwrite it with the
received data, then zero out only the remaining bytes.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240520112724.139945-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
This commit is contained in:
AngeloGioacchino Del Regno 2024-05-20 13:27:24 +02:00 committed by Mathieu Poirier
parent 1613e604df
commit 9dbd9962cf
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/remoteproc/mtk_scp.c
View File

@ -117,8 +117,8 @@ static void scp_ipi_handler(struct mtk_scp *scp)
return;
}
memset(scp->share_buf, 0, scp_sizes->ipi_share_buffer_size);
memcpy_fromio(scp->share_buf, &rcv_obj->share_buf, len);
memset(&scp->share_buf[len], 0, scp_sizes->ipi_share_buffer_size - len);
handler(scp->share_buf, len, ipi_desc[id].priv);
scp_ipi_unlock(scp, id);