linux-kernel - Re: [PATCH -mm] -funsigned-char, x86: make struct p4_event

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Message-ID: <Y1G+7e7l5dpHhCyP@smile.fi.intel.com>
Date:   Fri, 21 Oct 2022 00:34:37 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Kees Cook <keescook@...omium.org>,
        "Jason A. Donenfeld" <Jason@...c4.com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
        mm-commits@...r.kernel.org, masahiroy@...nel.org,
        gregkh@...uxfoundation.org, Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH -mm] -funsigned-char, x86: make struct
 p4_event_bind::cntr signed array

On Thu, Oct 20, 2022 at 01:17:33PM -0700, Linus Torvalds wrote:
> On Thu, Oct 20, 2022 at 12:39 PM Linus Torvalds
> <torvalds@...ux-foundation.org> wrote:

...

> And in some cases the differences are enormous:
> 
>  - drivers/net/wireless/ralink/rt2x00/rt2800lib.c generates a 220kB diff
> 
> which seems to be due to entirely different inlining decisions or
> something, and the differences are so enormous that I didn't even
> start looking at the cause.

This one is what we start the epopee from. I think Jason handled it in his last
patch against this certain driver.

-- 
With Best Regards,
Andy Shevchenko