Question on warning -- possible unnecessary 'out of memory' message.

Leon Romanovsky leon at
Mon Jan 5 04:49:57 EST 2015

Hi Bas,

> All instances of this warning refer to usage of alloc_skb using the
> GFP_ATOMIC flag. Why does checkpatch show this warning? Is it not good
> practice to _always_ check whether allocation succeeded or not?
> I hope someone can explain the nature of this warning and, if right,
> what it should look like.
I suggest you to take a look at the following thread
As a short summary to that discussion:
1. You should check the NULL pointer.
2. You shouldn't print the error.

> With kind regards,
> Bas Peters
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at

Leon Romanovsky | Independent Linux Consultant | leon at

More information about the Kernelnewbies mailing list