Re: linux-next: build warning after merge of the net-next tree
From: John Hurley
Date: Tue Apr 16 2019 - 06:03:36 EST
On Tue, Apr 16, 2019 at 2:21 AM Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> Hi all,
> After merging the net-next tree, today's linux-next build (x86_64
> allmodconfig) produced this warning:
> drivers/net/ethernet/netronome/nfp/flower/offload.c: In function 'nfp_flower_copy_pre_actions':
> drivers/net/ethernet/netronome/nfp/flower/offload.c:630:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
> if (tunnel_act)
> drivers/net/ethernet/netronome/nfp/flower/offload.c:632:3: note: here
> case NFP_FL_ACTION_OPCODE_PRE_LAG:
> Introduced by commit
> 1c6952ca587d ("nfp: flower: generate merge flow rule")
> I get this warning because I am building with -Wimplicit-fallthrough
> in attempt to catch new additions early. The gcc warning can be turned
> off by adding a /* fall through */ comment at the point the fall through
> happens (assuming that the fall through is intentional).
Thanks for flagging this.
The fall through is intentional.
I'll submit a fix for the warning.
> Stephen Rothwell