Re: [PATCH] fs: lockd: avoid possible wrong NULL parameter

[Dan Carpenter]

There was a big fight about memcpy() in 2010.

https://lwn.net/Articles/416821/

It's sort of related but also sort of different.  My understanding is
that the glibc memcpy() says that memcpy() always does a dereference so
it can delete all the NULL checks which come after.  The linux kernel
uses -fno-delete-null-pointer-checks to turn this behavior off.

regards,
dan carpenter