| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <200806242051.22207.bzolnier@gmail.com>
Date: Tue, 24 Jun 2008 20:51:21 +0200
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: benh@...nel.crashing.org
Cc: linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] ide-pmac: media-bay support fixes
On Tuesday 24 June 2008, Benjamin Herrenschmidt wrote:
>
> > Build error and/or your build fix would be useful here.
>
> Sorry. Fix was a quick hack. There is a check_media_bay() followed by a
> break; outside of a break-able construct in there (off memory, I'm not
> in front of the dev box right now).
Thanks, 'take 3' follows.
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: [PATCH] ide-pmac: media-bay support fixes (take 3)
* If MB_CD device has already been detected and bay is in mb_up state just
change bay's state to mb_ide_resetting and let probing thread do the rest
instead of having open-coded waiting for IDE device to become ready in
media_bay_set_ide_infos() and doing the probe by ide_device_add().
* Move media_bay_set_ide_infos() call after ide_device_add().
* Use check_media_bay() instead of check_media_bay_by_base(),
then remove the latter function.
v2:
* Check pmif->mediabay and clear drive->noprobe before calling
media_bay_set_ide_infos().
v3:
* Fix build problem noticed by Ben.
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
drivers/ide/ppc/pmac.c | 15 ++++++++++-----
drivers/macintosh/mediabay.c | 33 +++++----------------------------
include/asm-powerpc/mediabay.h | 1 -
3 files changed, 15 insertions(+), 34 deletions(-)
Index: b/drivers/ide/ppc/pmac.c
===================================================================
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1030,10 +1030,6 @@ pmac_ide_setup_device(pmac_ide_hwif_t *p
/* XXX FIXME: Media bay stuff need re-organizing */
if (np->parent && np->parent->name
&& strcasecmp(np->parent->name, "media-bay") == 0) {
-#ifdef CONFIG_PMAC_MEDIABAY
- media_bay_set_ide_infos(np->parent, pmif->regbase, pmif->irq,
- hwif);
-#endif /* CONFIG_PMAC_MEDIABAY */
pmif->mediabay = 1;
if (!bidp)
pmif->aapl_bus_id = 1;
@@ -1067,7 +1063,7 @@ pmac_ide_setup_device(pmac_ide_hwif_t *p
if (pmif->mediabay) {
#ifdef CONFIG_PMAC_MEDIABAY
- if (check_media_bay_by_base(pmif->regbase, MB_CD)) {
+ if (check_media_bay(np->parent, MB_CD) != -ENODEV) {
#else
if (1) {
#endif
@@ -1080,6 +1076,15 @@ pmac_ide_setup_device(pmac_ide_hwif_t *p
ide_device_add(idx, &d);
+ if (pmif->mediabay) {
+ hwif->drives[0].noprobe = 0;
+ hwif->drives[1].noprobe = 0;
+#ifdef CONFIG_PMAC_MEDIABAY
+ media_bay_set_ide_infos(np->parent, pmif->regbase, pmif->irq,
+ hwif);
+#endif
+ }
+
return 0;
}
Index: b/drivers/macintosh/mediabay.c
===================================================================
--- a/drivers/macintosh/mediabay.c
+++ b/drivers/macintosh/mediabay.c
@@ -433,21 +433,6 @@ int check_media_bay(struct device_node *
}
EXPORT_SYMBOL(check_media_bay);
-int check_media_bay_by_base(unsigned long base, int what)
-{
- int i;
-
- for (i=0; i<media_bay_count; i++)
- if (media_bays[i].mdev && base == (unsigned long) media_bays[i].cd_base) {
- if ((what == media_bays[i].content_id) && media_bays[i].state == mb_up)
- return 0;
- media_bays[i].cd_index = -1;
- return -EINVAL;
- }
-
- return -ENODEV;
-}
-
int media_bay_set_ide_infos(struct device_node* which_bay, unsigned long base,
int irq, ide_hwif_t *hwif)
{
@@ -457,8 +442,6 @@ int media_bay_set_ide_infos(struct devic
struct media_bay_info* bay = &media_bays[i];
if (bay->mdev && which_bay == bay->mdev->ofdev.node) {
- int timeout = 5000, index = hwif->index;
-
down(&bay->lock);
bay->cd_port = hwif;
@@ -469,18 +452,12 @@ int media_bay_set_ide_infos(struct devic
up(&bay->lock);
return 0;
}
- printk(KERN_DEBUG "Registered ide%d for media bay %d\n", index, i);
- do {
- if (MB_IDE_READY(i)) {
- bay->cd_index = index;
- up(&bay->lock);
- return 0;
- }
- mdelay(1);
- } while(--timeout);
- printk(KERN_DEBUG "Timeount waiting IDE in bay %d\n", i);
+
+ /* let probing thread do the rest */
+ bay->state = mb_ide_resetting;
+
up(&bay->lock);
- return -ENODEV;
+ return 0;
}
}
Index: b/include/asm-powerpc/mediabay.h
===================================================================
--- a/include/asm-powerpc/mediabay.h
+++ b/include/asm-powerpc/mediabay.h
@@ -23,7 +23,6 @@ extern int media_bay_count;
#ifdef CONFIG_BLK_DEV_IDE_PMAC
#include <linux/ide.h>
-int check_media_bay_by_base(unsigned long base, int what);
/* called by IDE PMAC host driver to register IDE controller for media bay */
int media_bay_set_ide_infos(struct device_node *which_bay, unsigned long base,
int irq, ide_hwif_t *hwif);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists