All of lore.kernel.org
 help / color / mirror / Atom feed
From: Harvey Harrison <harvey.harrison@gmail.com>
To: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: linux-ide <linux-ide@vger.kernel.org>
Subject: [PATCH 1/2] ide: ide-tape.c sparse annotations and unaligned access removal
Date: Tue, 15 Jul 2008 13:14:04 -0700	[thread overview]
Message-ID: <1216152845.6610.18.camel@brick> (raw)

If this is actually unaligned the access of speed/max_speed above
is already broken and needs a get_unaligned.  Otherwise it is
aligned and they can be removed.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
---
Bart, if this truly should be unaligned, let me know and I'll send you
a patch fixing the speed/maxspeed issue.

 drivers/ide/ide-tape.c |   16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 34fc925..40b09b2 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -655,10 +655,10 @@ static void ide_tape_callback(ide_drive_t *drive)
 			uptodate = 0;
 		} else {
 			debug_log(DBG_SENSE, "Block Location - %u\n",
-					be32_to_cpu(*(u32 *)&readpos[4]));
+					be32_to_cpup((__be32 *)&readpos[4]));
 
 			tape->partition = readpos[1];
-			tape->first_frame = be32_to_cpu(*(u32 *)&readpos[4]);
+			tape->first_frame = be32_to_cpup((__be32 *)&readpos[4]);
 			set_bit(IDE_DFLAG_ADDRESS_VALID, &drive->dev_flags);
 		}
 	}
@@ -2381,13 +2381,13 @@ static void idetape_get_mode_sense_results(ide_drive_t *drive)
 	caps = pc.buf + 4 + pc.buf[3];
 
 	/* convert to host order and save for later use */
-	speed = be16_to_cpu(*(u16 *)&caps[14]);
-	max_speed = be16_to_cpu(*(u16 *)&caps[8]);
+	speed = be16_to_cpup((__be16 *)&caps[14]);
+	max_speed = be16_to_cpup((__be16 *)&caps[8]);
 
-	put_unaligned(max_speed, (u16 *)&caps[8]);
-	put_unaligned(be16_to_cpu(*(u16 *)&caps[12]), (u16 *)&caps[12]);
-	put_unaligned(speed, (u16 *)&caps[14]);
-	put_unaligned(be16_to_cpu(*(u16 *)&caps[16]), (u16 *)&caps[16]);
+	*(u16 *)&caps[8] = max_speed;
+	*(u16 *)&caps[12] = be16_to_cpup((__be16 *)&caps[12]);
+	*(u16 *)&caps[14] = speed;
+	*(u16 *)&caps[16] = be16_to_cpup((__be16 *)&caps[16]);
 
 	if (!speed) {
 		printk(KERN_INFO "ide-tape: %s: invalid tape speed "
-- 
1.5.6.3.499.geae9



             reply	other threads:[~2008-07-15 20:14 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-15 20:14 Harvey Harrison [this message]
2008-07-16 17:43 ` [PATCH 1/2] ide: ide-tape.c sparse annotations and unaligned access removal Bartlomiej Zolnierkiewicz
2008-07-16 19:28   ` Harvey Harrison
2008-07-21 18:40     ` Bartlomiej Zolnierkiewicz

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=1216152845.6610.18.camel@brick \
    --to=harvey.harrison@gmail.com \
    --cc=bzolnier@gmail.com \
    --cc=linux-ide@vger.kernel.org \
    /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.