All of lore.kernel.org
 help / color / mirror / Atom feed
From: York Sun <yorksun@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 2/2] powerpc/mpc85xx: Remove some dead code
Date: Mon, 20 Apr 2015 14:01:20 -0700	[thread overview]
Message-ID: <55356920.2020702@freescale.com> (raw)
In-Reply-To: <1428456001-1938-2-git-send-email-scottwood@freescale.com>



On 04/07/2015 06:20 PM, Scott Wood wrote:
> U-Boot does not have system calls (the services it exposes to
> standalone commands use a different mechanism), so the syscall handler
> is dead code.  It's also broken code, as it assumes it is located at
> 0xc00 -- while even before the patch to stop relocating exception
> vectors to 0, U-Boot had the syscall at 0x900.
> 
> The critical and machine check return paths are never called -- the
> regular exception return path is used instead, which works because
> xSRR0/1 have already been saved and can be restored via the regular
> SRR0/1 (we don't care too much in U-Boot about taking a critical/mcheck
> inside another exception prolog/epilog).
> 
> Also remove a few other small unused functions.
> 
> Signed-off-by: Scott Wood <scottwood@freescale.com>
> ---

Applied to mpc85xx master, awaiting upstream.

York

  reply	other threads:[~2015-04-20 21:01 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-08  1:20 [U-Boot] [PATCH 1/2] powerpc/mpc85xx: Don't relocate exception vectors Scott Wood
2015-04-08  1:20 ` [U-Boot] [PATCH 2/2] powerpc/mpc85xx: Remove some dead code Scott Wood
2015-04-20 21:01   ` York Sun [this message]
2015-04-20 21:00 ` [U-Boot] [PATCH 1/2] powerpc/mpc85xx: Don't relocate exception vectors York Sun

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=55356920.2020702@freescale.com \
    --to=yorksun@freescale.com \
    --cc=u-boot@lists.denx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.