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Date: Mon, 18 Sep 2017 08:57:10 -0700 From: Alexei Starovoitov <alexei.starovoitov@...il.com> To: Tobias Klauser <tklauser@...tanz.ch> Cc: Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, John Fastabend <john.fastabend@...il.com>, netdev@...r.kernel.org Subject: Re: [PATCH] bpf: devmap: pass on return value of bpf_map_precharge_memlock On Mon, Sep 18, 2017 at 03:03:46PM +0200, Tobias Klauser wrote: > If bpf_map_precharge_memlock in dev_map_alloc, -ENOMEM is returned > regardless of the actual error produced by bpf_map_precharge_memlock. > Fix it by passing on the error returned by bpf_map_precharge_memlock. > > Also return -EINVAL instead of -ENOMEM if the page count overflow check > fails. > > This makes dev_map_alloc match the behavior of other bpf maps' alloc > functions wrt. return values. > > Signed-off-by: Tobias Klauser <tklauser@...tanz.ch> good catch. Acked-by: Alexei Starovoitov <ast@...nel.org>
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