lkml.org 
[lkml]   [2011]   [Feb]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] x86: use bitmap library functions

* Akinobu Mita <akinobu.mita@gmail.com> wrote:

> Use bitmap_set()/bitmap_clear() to fill/zero a region of a bitmap
> instead of doing set_bit()/clear_bit() each bit.
>
> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: x86@kernel.org
> ---
> arch/x86/kernel/ioport.c | 20 +++++---------------
> 1 files changed, 5 insertions(+), 15 deletions(-)

Before we can merge this it would be nice to tested this using sys_ioperm(), to make
sure port IO still gets denied/allowed as expected. You can check /proc/ioperm to
see which ports are (probably) safe to read: 0x80/0xed is usually safe to
read/write.

Ingo


\
 
 \ /
  Last update: 2011-02-16 16:41    [W:0.057 / U:0.216 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site