Hi all,

On Thu, 29 Nov 2018 11:24:28 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> After merging the net-next tree, today's linux-next build
> (x86_64_allmodconfig) produced this warning:
> 
> drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c: In function 'run_xdp':
> drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c:324:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    bpf_warn_invalid_xdp_action(xdp_act);
>    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c:325:2: note: here
>   case XDP_ABORTED:
>   ^~~~
> drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c:326:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    trace_xdp_exception(priv->net_dev, xdp_prog, xdp_act);
>    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c:327:2: note: here
>   case XDP_DROP:
>   ^~~~
> 
> Introduced by commit
> 
>   7e273a8ebdd3 ("dpaa2-eth: Add basic XDP support")
> 
> This due to my use of -Wimplicit-fallthrough.  This is new code.  The
> warning can be suppressed by adding a comment like /* fall through */
> at the appropriate places to indicate that the fallthrough is intended.

I am still seeing these warnings.

-- 
Cheers,
Stephen Rothwell