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kernel: ltq-vdsl-vr9-mei: fix warning about field-spanning write

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We need to use unsafe_memcpy() here, because the code do the field-
spanning write intentionally.

Signed-off-by: Martin Schiller <ms@dev.tdt.de>
This commit is contained in:
Martin Schiller 2024-04-11 20:31:01 +02:00
parent 83fccc42df
commit 7bc487c12e
1 changed files with 15 additions and 0 deletions
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15
package/kernel/lantiq/ltq-vdsl-vr9-mei/patches/401-use-unsafe_memcpy-for-intentional-field-spanning-write.patch Normal file
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@ -0,0 +1,15 @@
--- a/src/drv_mei_cpe_msg_process.c
+++ b/src/drv_mei_cpe_msg_process.c
@@ -3524,7 +3524,12 @@ IFX_int32_t MEI_IoctlCmdMsgWrite(
{
if (bInternCall)
{
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,19,0))
memcpy(pDestPtr, pUserMsg->pPayload, pUserMsg->paylSize_byte);
+#else
+ unsafe_memcpy(pDestPtr, pUserMsg->pPayload, pUserMsg->paylSize_byte,
+ /* field-spanning writing is used here intentionally */);
+#endif
}
else
{