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can-utils: remove strict-aliasing compiler warning

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GitHub user 'crossband' raised an issue regarding the strict-aliasing compiler
warning in his specific setup: https://github.com/linux-can/can-utils/issues/42

In fact memcpy() and memset() are a better solution than the former pointer
magics, so remove the issues and the compiler warning flag too.

Reported-by: crossband (https://github.com/crossband)
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
This commit is contained in:
Oliver Hartkopp
2017-07-01 19:01:01 +02:00
parent 5109ca4f3c
commit 4c8fb05cb4
5 changed files with 24 additions and 21 deletions
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candump.c
+2 -2
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@@ -689,9 +689,9 @@ int main(int argc, char **argv)
cmsg && (cmsg->cmsg_level == SOL_SOCKET);
cmsg = CMSG_NXTHDR(&msg,cmsg)) {
if (cmsg->cmsg_type == SO_TIMESTAMP)
tv = *(struct timeval *)CMSG_DATA(cmsg);
memcpy(&tv, CMSG_DATA(cmsg), sizeof(tv));
else if (cmsg->cmsg_type == SO_RXQ_OVFL)
dropcnt[i] = *(__u32 *)CMSG_DATA(cmsg);
memcpy(&dropcnt[i], CMSG_DATA(cmsg), sizeof(__u32));
}
/* check for (unlikely) dropped frames on this specific socket */