Hi all,
On Thu, 29 Nov 2018 11:24:28 +1100 Stephen Rothwell <s...@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
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