Re: [PATCH] mips/oprofile: Fix fallthrough placement

From: Thomas Bogendoerfer
Date: Fri Aug 21 2020 - 03:50:18 EST


On Thu, Aug 20, 2020 at 08:54:40PM +0800, zhe.he@xxxxxxxxxxxxx wrote:
> From: He Zhe <zhe.he@xxxxxxxxxxxxx>
>
> We want neither
> "
> include/linux/compiler_attributes.h:201:41: warning: statement will never
> be executed [-Wswitch-unreachable]
> 201 | # define fallthrough __attribute__((__fallthrough__))
> | ^~~~~~~~~~~~~
> "
> nor
> "
> include/linux/compiler_attributes.h:201:41: warning: attribute
> 'fallthrough' not preceding a case label or default label
> 201 | # define fallthrough __attribute__((__fallthrough__))
> | ^~~~~~~~~~~~~
> "
>
> It's not worth adding one more macro. Let's simply place the fallthrough
> in between the expansions.
>
> Signed-off-by: He Zhe <zhe.he@xxxxxxxxxxxxx>

there is already another patch for the problem, which I've applied
to mips-fixes.

Thomas.

--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]