Re: [GIT PULL] Wimplicit-fallthrough patches for 5.3-rc1

From: Gustavo A. R. Silva
Date: Thu Jul 18 2019 - 16:29:00 EST




On 7/10/19 4:36 PM, Stephen Rothwell wrote:
> Hi Gustavo,
>
> On Wed, 10 Jul 2019 13:14:10 -0500 "Gustavo A. R. Silva" <gustavo@xxxxxxxxxxxxxx> wrote:
>>
>> At some point during this development cycle, we reached the quota of zero
>> fall-through warnings, but people continued introducing such warnings. So,
>> it seems we are now pretty much ready for enabling -Wimplicit-fallthrough
>> globally. Before it turns into a never ending story. :)
>
> Sounds good to me. My mail was, I guess, just a heads up to Linus that
> he will see some new warnings in his test build if he merges your
> tree. Thanks for addressing them.
>
Yep. Thanks, Stephen.

Linus:

After you have merged all the trees containing fall-through patches, you might
see the following warnings:

arch/x86/events/intel/core.c:4957:8: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/x86/events/intel/core.c:5006:8: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/mtd/nand/onenand/onenand_base.c:3261:6: warning: this statement may fall through [-Wimplicit-fallthrough=]

for which I already have patches ready to be applied, but I didn't include them
in my pull-request because such patches don't apply to 5.2-rc2, on which I based
my -next tree for v5.3.

We can coordinate and I can send you the patches that address those and any other
warning that you might see after merging my pull-request and just before you release
5.3-rc1. So we can have the -Wimplicit-fallthrough option globally enabled in
5.3-rc1 and zero fall-through warnings.

What do you think?

Thanks
--
Gustavo