linux-kernel - Re: linux-next: build warnings after merge of the wireless-drivers-next tree

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Message-ID: <1ce59aaf30aaa9f59fc84c68a9e83299df0d4af8.camel@coelho.fi>
Date:   Wed, 19 Dec 2018 08:27:22 -0200
From:   Luca Coelho <luca@...lho.fi>
To:     "Grumbach, Emmanuel" <emmanuel.grumbach@...el.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Wireless <linux-wireless@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Sharon, Sara" <sara.sharon@...el.com>,
        Kees Cook <keescook@...gle.com>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        David Miller <davem@...emloft.net>,
        Networking <netdev@...r.kernel.org>
Subject: Re: linux-next: build warnings after merge of the
 wireless-drivers-next tree

On Wed, 2018-12-19 at 08:31 +0000, Grumbach, Emmanuel wrote:
> > Stephen Rothwell <sfr@...b.auug.org.au> writes:
> > 
> > > On Fri, 30 Nov 2018 12:05:55 +1100 Stephen Rothwell
> > <sfr@...b.auug.org.au> wrote:
> > > > After merging the wireless-drivers-next tree, today's linux-next
> > > > build
> > > > (x86_64 allmodconfig) produced these warnings:
> > > > 
> > > > drivers/net/wireless/intel/iwlwifi/iwl-drv.c: In function
> > 'iwl_parse_tlv_firmware':
> > > > drivers/net/wireless/intel/iwlwifi/iwl-drv.c:1098:7: warning: this
> > statement may fall through [-Wimplicit-fallthrough=]
> > > >     if (iwlwifi_mod_params.enable_ini)
> > > >        ^
> > > > drivers/net/wireless/intel/iwlwifi/iwl-drv.c:1100:3: note: here
> > > >    default:
> > > >    ^~~~~~~
> > > > drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c: In function
> > 'iwl_parse_fw_dbg_tlv':
> > > > drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c:203:4: warning: this
> > statement may fall through [-Wimplicit-fallthrough=]
> > > >     iwl_fw_dbg_copy_tlv(trans, tlv, true);
> > > >     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > > > drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c:204:3: note: here
> > > >    default:
> > > >    ^~~~~~~
> > > > 
> > > > Introduced by commit
> > > > 
> > > >   f14cda6f3b31 ("iwlwifi: trans: parse and store debug ini TLVs")
> > > > 
> > > > These are noted because I use -Wimplict-fallthrough
> > > > 
> > > > The warnings can be suppressed by adding a comment like
> > > > 	/* fall through */
> > > > at the appropriate place to indicate that the fallthough is intended.
> > > 
> > > I am still seeing these warnings (but in the net-next tree now) and I
> > > do not see a fix patch in the wireless-drivers-next tree.
> > 
> > Luca did submit a patch[1] for cfg80211 to fix those but I don't see any
> > patches for iwlwifi (even in the one pending pull request he sent), not sure
> > what happened. I know that Luca is already on holidays but adding
> > Emmanuel, maybe he can help here?
> > 
> 
> Just sent a patch.

Those patches were still queued for upstreaming and I didn't think they
were that urgent, so I didn't pick them.

--
Luca.