linux-kernel - Re: [patch V2 09/16] x86/ioperm: Move TSS bitmap update to exit to user work

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Message-ID: <CAHk-=wiPX0xdMGjmZw2yM=aeYArq4V=x=kD7Yr1guMHbaL+Ubg@mail.gmail.com>
Date:   Tue, 12 Nov 2019 09:46:30 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>, X86 ML <x86@...nel.org>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Willy Tarreau <w@....eu>, Juergen Gross <jgross@...e.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [patch V2 09/16] x86/ioperm: Move TSS bitmap update to exit to
 user work

On Tue, Nov 12, 2019 at 9:42 AM Andy Lutomirski <luto@...nel.org> wrote:
>
> Right.  But your diff tool *said* the diff was in
> exit_to_usermode_loop().  Can you look at your .gitconfig and see if
> you have something weird going on?

I think it's just that the pattern to find "start of new function" is
confused by the "__visible" or something.

Don't rely too much on the function names in the diff headers. They
can be confused by labels, or just by other things. I think it ends up
being "does the line start with alphabetic character" that is the
heuristic for "this is a function header".

           Linus