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

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

[Stephen Rothwell]

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Hi all,

On Fri, 30 Nov 2018 12:05:55 +1100 Stephen Rothwell <sfr@canb.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.

-- 
Cheers,
Stephen Rothwell

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

[Kalle Valo]

Stephen Rothwell <sfr@canb.auug.org.au> writes:

> On Fri, 30 Nov 2018 12:05:55 +1100 Stephen Rothwell <sfr@canb.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?

[1] https://patchwork.kernel.org/patch/10732065/

-- 
Kalle Valo

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

[Grumbach, Emmanuel]

> 
> Stephen Rothwell <sfr@canb.auug.org.au> writes:
> 
> > On Fri, 30 Nov 2018 12:05:55 +1100 Stephen Rothwell
> <sfr@canb.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.

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

[Luca Coelho]

On Wed, 2018-12-19 at 08:31 +0000, Grumbach, Emmanuel wrote:
> > Stephen Rothwell <sfr-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org> writes:
> > 
> > > On Fri, 30 Nov 2018 12:05:55 +1100 Stephen Rothwell
> > <sfr-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org> 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.

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

[Kalle Valo]

"Grumbach, Emmanuel" <emmanuel.grumbach@intel.com> writes:

>> 
>> Stephen Rothwell <sfr@canb.auug.org.au> writes:
>> 
>> > On Fri, 30 Nov 2018 12:05:55 +1100 Stephen Rothwell
>> <sfr@canb.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.

I see it thanks:

https://patchwork.kernel.org/patch/10736967/

I'll try to get it to tomorrow's linux-next build.

-- 
Kalle Valo