* [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity
@ 2008-07-30 7:42 Petr Tesarik
0 siblings, 0 replies; 12+ messages in thread
From: Petr Tesarik @ 2008-07-30 7:42 UTC (permalink / raw)
To: linux; +Cc: linux-ide, Andrew Morton, Jens Axboe, Jan Kara
Aesthetic regards aside, commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667
still leaves a bug in the error message, because it uses the unconverted
big-endian value for printk.
Fix this by using a local variable in machine byte order. The result is
correct, more readable, and also produces slightly shorter code on i386.
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
---
ide-cd.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1305,6 +1305,7 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
int stat;
unsigned char cmd[BLK_MAX_CDB];
unsigned len = sizeof(capbuf);
+ __u32 blocklen;
memset(cmd, 0, BLK_MAX_CDB);
cmd[0] = GPCMD_READ_CDVD_CAPACITY;
@@ -1317,23 +1318,24 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
/*
* Sanity check the given block size
*/
- switch (capbuf.blocklen) {
- case __constant_cpu_to_be32(512):
- case __constant_cpu_to_be32(1024):
- case __constant_cpu_to_be32(2048):
- case __constant_cpu_to_be32(4096):
+ blocklen = be32_to_cpu(capbuf.blocklen);
+ switch (blocklen) {
+ case 512:
+ case 1024:
+ case 2048:
+ case 4096:
break;
default:
printk(KERN_ERR "%s: weird block size %u\n",
- drive->name, capbuf.blocklen);
+ drive->name, blocklen);
printk(KERN_ERR "%s: default to 2kb block size\n",
drive->name);
- capbuf.blocklen = __constant_cpu_to_be32(2048);
+ blocklen = 2048;
break;
}
*capacity = 1 + be32_to_cpu(capbuf.lba);
- *sectors_per_frame = be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS;
+ *sectors_per_frame = blocklen >> SECTOR_BITS;
return 0;
}
^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity
@ 2008-07-30 8:10 Petr Tesarik
2008-07-30 8:18 ` Andrew Morton
0 siblings, 1 reply; 12+ messages in thread
From: Petr Tesarik @ 2008-07-30 8:10 UTC (permalink / raw)
To: linux-kernel; +Cc: linux-ide, Andrew Morton, Jens Axboe, Jan Kara
Resent because of a typo in the LKML address. :(
Aesthetic regards aside, commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667
still leaves a bug in the error message, because it uses the unconverted
big-endian value for printk.
Fix this by using a local variable in machine byte order. The result is
correct, more readable, and also produces slightly shorter code on i386.
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
---
ide-cd.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1305,6 +1305,7 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
int stat;
unsigned char cmd[BLK_MAX_CDB];
unsigned len = sizeof(capbuf);
+ __u32 blocklen;
memset(cmd, 0, BLK_MAX_CDB);
cmd[0] = GPCMD_READ_CDVD_CAPACITY;
@@ -1317,23 +1318,24 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
/*
* Sanity check the given block size
*/
- switch (capbuf.blocklen) {
- case __constant_cpu_to_be32(512):
- case __constant_cpu_to_be32(1024):
- case __constant_cpu_to_be32(2048):
- case __constant_cpu_to_be32(4096):
+ blocklen = be32_to_cpu(capbuf.blocklen);
+ switch (blocklen) {
+ case 512:
+ case 1024:
+ case 2048:
+ case 4096:
break;
default:
printk(KERN_ERR "%s: weird block size %u\n",
- drive->name, capbuf.blocklen);
+ drive->name, blocklen);
printk(KERN_ERR "%s: default to 2kb block size\n",
drive->name);
- capbuf.blocklen = __constant_cpu_to_be32(2048);
+ blocklen = 2048;
break;
}
*capacity = 1 + be32_to_cpu(capbuf.lba);
- *sectors_per_frame = be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS;
+ *sectors_per_frame = blocklen >> SECTOR_BITS;
return 0;
}
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity
2008-07-30 8:10 [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity Petr Tesarik
@ 2008-07-30 8:18 ` Andrew Morton
2008-07-30 8:52 ` Boris Petkov
0 siblings, 1 reply; 12+ messages in thread
From: Andrew Morton @ 2008-07-30 8:18 UTC (permalink / raw)
To: Petr Tesarik
Cc: linux-kernel, linux-ide, Jens Axboe, Jan Kara,
Bartlomiej Zolnierkiewicz
On Wed, 30 Jul 2008 10:10:06 +0200 Petr Tesarik <ptesarik@suse.cz> wrote:
> Resent because of a typo in the LKML address. :(
Thanks.
>
> Aesthetic regards aside, commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667
> still leaves a bug in the error message, because it uses the unconverted
> big-endian value for printk.
>
> Fix this by using a local variable in machine byte order. The result is
> correct, more readable, and also produces slightly shorter code on i386.
>
> Cc: Jens Axboe <jens.axboe@oracle.com>
> Cc: Jan Kara <jack@suse.cz>
> Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Bart owns this patch now. It got lost for a month and it has already
been fixed twice and it is also on the route to 2.6.25.x and 2.6.26.x,
so it'll get complicated. Not a happy little patch.
>
> ide-cd.c | 18 ++++++++++--------
> 1 file changed, 10 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
> --- a/drivers/ide/ide-cd.c
> +++ b/drivers/ide/ide-cd.c
> @@ -1305,6 +1305,7 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
> int stat;
> unsigned char cmd[BLK_MAX_CDB];
> unsigned len = sizeof(capbuf);
> + __u32 blocklen;
>
> memset(cmd, 0, BLK_MAX_CDB);
> cmd[0] = GPCMD_READ_CDVD_CAPACITY;
> @@ -1317,23 +1318,24 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
> /*
> * Sanity check the given block size
> */
> - switch (capbuf.blocklen) {
> - case __constant_cpu_to_be32(512):
> - case __constant_cpu_to_be32(1024):
> - case __constant_cpu_to_be32(2048):
> - case __constant_cpu_to_be32(4096):
> + blocklen = be32_to_cpu(capbuf.blocklen);
> + switch (blocklen) {
> + case 512:
> + case 1024:
> + case 2048:
> + case 4096:
> break;
> default:
> printk(KERN_ERR "%s: weird block size %u\n",
> - drive->name, capbuf.blocklen);
> + drive->name, blocklen);
> printk(KERN_ERR "%s: default to 2kb block size\n",
> drive->name);
> - capbuf.blocklen = __constant_cpu_to_be32(2048);
> + blocklen = 2048;
> break;
> }
>
> *capacity = 1 + be32_to_cpu(capbuf.lba);
> - *sectors_per_frame = be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS;
> + *sectors_per_frame = blocklen >> SECTOR_BITS;
> return 0;
> }
>
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity
2008-07-30 8:18 ` Andrew Morton
@ 2008-07-30 8:52 ` Boris Petkov
2008-07-30 16:33 ` Greg KH
2008-07-30 19:25 ` Bartlomiej Zolnierkiewicz
0 siblings, 2 replies; 12+ messages in thread
From: Boris Petkov @ 2008-07-30 8:52 UTC (permalink / raw)
To: Andrew Morton, Greg Kroah-Hartman
Cc: Petr Tesarik, linux-kernel, linux-ide, Jens Axboe, Jan Kara,
Bartlomiej Zolnierkiewicz
On Wed, Jul 30, 2008 at 10:18 AM, Andrew Morton
<akpm@linux-foundation.org> wrote:
> On Wed, 30 Jul 2008 10:10:06 +0200 Petr Tesarik <ptesarik@suse.cz> wrote:
>
>> Resent because of a typo in the LKML address. :(
>
> Thanks.
>
>>
>> Aesthetic regards aside, commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667
>> still leaves a bug in the error message, because it uses the unconverted
>> big-endian value for printk.
>>
>> Fix this by using a local variable in machine byte order. The result is
>> correct, more readable, and also produces slightly shorter code on i386.
>>
>> Cc: Jens Axboe <jens.axboe@oracle.com>
>> Cc: Jan Kara <jack@suse.cz>
>> Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
I definitely like this one better, thanks.
Acked-by: Borislav Petkov <petkovbb@gmail.com>
>
> Bart owns this patch now. It got lost for a month and it has already
> been fixed twice and it is also on the route to 2.6.25.x and 2.6.26.x,
> so it'll get complicated. Not a happy little patch.
Greg, can you please apply this one on top of -stable.
>
>>
>> ide-cd.c | 18 ++++++++++--------
>> 1 file changed, 10 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
>> --- a/drivers/ide/ide-cd.c
>> +++ b/drivers/ide/ide-cd.c
>> @@ -1305,6 +1305,7 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
>> int stat;
>> unsigned char cmd[BLK_MAX_CDB];
>> unsigned len = sizeof(capbuf);
>> + __u32 blocklen;
>>
>> memset(cmd, 0, BLK_MAX_CDB);
>> cmd[0] = GPCMD_READ_CDVD_CAPACITY;
>> @@ -1317,23 +1318,24 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
>> /*
>> * Sanity check the given block size
>> */
>> - switch (capbuf.blocklen) {
>> - case __constant_cpu_to_be32(512):
>> - case __constant_cpu_to_be32(1024):
>> - case __constant_cpu_to_be32(2048):
>> - case __constant_cpu_to_be32(4096):
>> + blocklen = be32_to_cpu(capbuf.blocklen);
>> + switch (blocklen) {
>> + case 512:
>> + case 1024:
>> + case 2048:
>> + case 4096:
>> break;
>> default:
>> printk(KERN_ERR "%s: weird block size %u\n",
>> - drive->name, capbuf.blocklen);
>> + drive->name, blocklen);
>> printk(KERN_ERR "%s: default to 2kb block size\n",
>> drive->name);
>> - capbuf.blocklen = __constant_cpu_to_be32(2048);
>> + blocklen = 2048;
>> break;
>> }
>>
>> *capacity = 1 + be32_to_cpu(capbuf.lba);
>> - *sectors_per_frame = be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS;
>> + *sectors_per_frame = blocklen >> SECTOR_BITS;
>> return 0;
>> }
>>
>>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
--
Regards/Gruß,
Boris
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity
2008-07-30 8:52 ` Boris Petkov
@ 2008-07-30 16:33 ` Greg KH
2008-07-30 19:12 ` Borislav Petkov
2008-07-30 19:27 ` Borislav Petkov
2008-07-30 19:25 ` Bartlomiej Zolnierkiewicz
1 sibling, 2 replies; 12+ messages in thread
From: Greg KH @ 2008-07-30 16:33 UTC (permalink / raw)
To: petkovbb, stable
Cc: Andrew Morton, Petr Tesarik, linux-kernel, linux-ide, Jens Axboe,
Jan Kara, Bartlomiej Zolnierkiewicz
On Wed, Jul 30, 2008 at 10:52:50AM +0200, Boris Petkov wrote:
> On Wed, Jul 30, 2008 at 10:18 AM, Andrew Morton
> <akpm@linux-foundation.org> wrote:
> > On Wed, 30 Jul 2008 10:10:06 +0200 Petr Tesarik <ptesarik@suse.cz> wrote:
> >
> >> Resent because of a typo in the LKML address. :(
> >
> > Thanks.
> >
> >>
> >> Aesthetic regards aside, commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667
> >> still leaves a bug in the error message, because it uses the unconverted
> >> big-endian value for printk.
> >>
> >> Fix this by using a local variable in machine byte order. The result is
> >> correct, more readable, and also produces slightly shorter code on i386.
> >>
> >> Cc: Jens Axboe <jens.axboe@oracle.com>
> >> Cc: Jan Kara <jack@suse.cz>
> >> Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
>
> I definitely like this one better, thanks.
>
> Acked-by: Borislav Petkov <petkovbb@gmail.com>
>
>
> >
> > Bart owns this patch now. It got lost for a month and it has already
> > been fixed twice and it is also on the route to 2.6.25.x and 2.6.26.x,
> > so it'll get complicated. Not a happy little patch.
>
> Greg, can you please apply this one on top of -stable.
What one? Do you have a git commit id?
And please, send stable requests to stable@kernel.org, otherwise they
have a tendancy to get lost in my horrible inbox these days...
thanks,
greg k-h
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity
2008-07-30 16:33 ` Greg KH
@ 2008-07-30 19:12 ` Borislav Petkov
2008-07-30 20:58 ` Greg KH
2008-07-30 19:27 ` Borislav Petkov
1 sibling, 1 reply; 12+ messages in thread
From: Borislav Petkov @ 2008-07-30 19:12 UTC (permalink / raw)
To: Greg KH
Cc: stable, Andrew Morton, Petr Tesarik, linux-kernel, linux-ide,
Jens Axboe, Jan Kara, Bartlomiej Zolnierkiewicz
On Wed, Jul 30, 2008 at 09:33:28AM -0700, Greg KH wrote:
> On Wed, Jul 30, 2008 at 10:52:50AM +0200, Boris Petkov wrote:
> > On Wed, Jul 30, 2008 at 10:18 AM, Andrew Morton
> > <akpm@linux-foundation.org> wrote:
> > > On Wed, 30 Jul 2008 10:10:06 +0200 Petr Tesarik <ptesarik@suse.cz> wrote:
> > >
> > >> Resent because of a typo in the LKML address. :(
> > >
> > > Thanks.
> > >
> > >>
> > >> Aesthetic regards aside, commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667
> > >> still leaves a bug in the error message, because it uses the unconverted
> > >> big-endian value for printk.
> > >>
> > >> Fix this by using a local variable in machine byte order. The result is
> > >> correct, more readable, and also produces slightly shorter code on i386.
> > >>
> > >> Cc: Jens Axboe <jens.axboe@oracle.com>
> > >> Cc: Jan Kara <jack@suse.cz>
> > >> Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
> >
> > I definitely like this one better, thanks.
> >
> > Acked-by: Borislav Petkov <petkovbb@gmail.com>
> >
> >
> > >
> > > Bart owns this patch now. It got lost for a month and it has already
> > > been fixed twice and it is also on the route to 2.6.25.x and 2.6.26.x,
> > > so it'll get complicated. Not a happy little patch.
> >
> > Greg, can you please apply this one on top of -stable.
>
> What one? Do you have a git commit id?
Oh, sorry about that. Ok, you should have in both 2.6.25 and .26 the patch with
upstream commit id e8e7b9eb11c34ee18bde8b7011af41938d1ad667. I rediffed the new
one on top, here's the 2.6.26 version, the 2.6.25 one follows.
--
From: Petr Tesarik <ptesarik@suse.cz>
Aesthetic regards aside, commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667
still leaves a bug in the error message, because it uses the unconverted
big-endian value for printk.
Fix this by using a local variable in machine byte order. The result is
correct, more readable, and also produces slightly shorter code on i386.
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
---
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 0cc854e..59875bb 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1298,6 +1298,7 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
int stat;
struct request req;
+ __u32 blocklen;
ide_cd_init_rq(drive, &req);
@@ -1314,23 +1315,24 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
/*
* Sanity check the given block size
*/
- switch (capbuf.blocklen) {
- case __constant_cpu_to_be32(512):
- case __constant_cpu_to_be32(1024):
- case __constant_cpu_to_be32(2048):
- case __constant_cpu_to_be32(4096):
+ blocklen = be32_to_cpu(capbuf.blocklen);
+ switch (blocklen) {
+ case 512:
+ case 1024:
+ case 2048:
+ case 4096:
break;
default:
printk(KERN_ERR "%s: weird block size %u\n",
- drive->name, capbuf.blocklen);
+ drive->name, blocklen);
printk(KERN_ERR "%s: default to 2kb block size\n",
drive->name);
- capbuf.blocklen = __constant_cpu_to_be32(2048);
+ blocklen = 2048;
break;
}
*capacity = 1 + be32_to_cpu(capbuf.lba);
- *sectors_per_frame = be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS;
+ *sectors_per_frame = blocklen >> SECTOR_BITS;
return 0;
}
--
Regards/Gruß,
Boris.
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity
2008-07-30 8:52 ` Boris Petkov
2008-07-30 16:33 ` Greg KH
@ 2008-07-30 19:25 ` Bartlomiej Zolnierkiewicz
2008-07-30 20:02 ` Andrew Morton
1 sibling, 1 reply; 12+ messages in thread
From: Bartlomiej Zolnierkiewicz @ 2008-07-30 19:25 UTC (permalink / raw)
To: petkovbb
Cc: Andrew Morton, Greg Kroah-Hartman, Petr Tesarik, linux-kernel,
linux-ide, Jens Axboe, Jan Kara
On Wednesday 30 July 2008, Boris Petkov wrote:
> On Wed, Jul 30, 2008 at 10:18 AM, Andrew Morton
> <akpm@linux-foundation.org> wrote:
> > On Wed, 30 Jul 2008 10:10:06 +0200 Petr Tesarik <ptesarik@suse.cz> wrote:
> >
> >> Resent because of a typo in the LKML address. :(
> >
> > Thanks.
> >
> >>
> >> Aesthetic regards aside, commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667
> >> still leaves a bug in the error message, because it uses the unconverted
> >> big-endian value for printk.
speaking of aesthetics: __u32 -> u32 ;-)
> >> Fix this by using a local variable in machine byte order. The result is
> >> correct, more readable, and also produces slightly shorter code on i386.
> >>
> >> Cc: Jens Axboe <jens.axboe@oracle.com>
> >> Cc: Jan Kara <jack@suse.cz>
> >> Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
>
> I definitely like this one better, thanks.
>
> Acked-by: Borislav Petkov <petkovbb@gmail.com>
applied
> > Bart owns this patch now. It got lost for a month and it has already
> > been fixed twice and it is also on the route to 2.6.25.x and 2.6.26.x,
> > so it'll get complicated. Not a happy little patch.
>
> Greg, can you please apply this one on top of -stable.
The usual policy is to not apply to -stable patches which are not in
Linus' tree so please notify stable@kernelorg team after patch hits
mainline.
> >
> >>
> >> ide-cd.c | 18 ++++++++++--------
> >> 1 file changed, 10 insertions(+), 8 deletions(-)
> >>
> >> diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
> >> --- a/drivers/ide/ide-cd.c
> >> +++ b/drivers/ide/ide-cd.c
> >> @@ -1305,6 +1305,7 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
> >> int stat;
> >> unsigned char cmd[BLK_MAX_CDB];
> >> unsigned len = sizeof(capbuf);
> >> + __u32 blocklen;
> >>
> >> memset(cmd, 0, BLK_MAX_CDB);
> >> cmd[0] = GPCMD_READ_CDVD_CAPACITY;
> >> @@ -1317,23 +1318,24 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
> >> /*
> >> * Sanity check the given block size
> >> */
> >> - switch (capbuf.blocklen) {
> >> - case __constant_cpu_to_be32(512):
> >> - case __constant_cpu_to_be32(1024):
> >> - case __constant_cpu_to_be32(2048):
> >> - case __constant_cpu_to_be32(4096):
> >> + blocklen = be32_to_cpu(capbuf.blocklen);
> >> + switch (blocklen) {
> >> + case 512:
> >> + case 1024:
> >> + case 2048:
> >> + case 4096:
> >> break;
> >> default:
> >> printk(KERN_ERR "%s: weird block size %u\n",
> >> - drive->name, capbuf.blocklen);
> >> + drive->name, blocklen);
> >> printk(KERN_ERR "%s: default to 2kb block size\n",
> >> drive->name);
> >> - capbuf.blocklen = __constant_cpu_to_be32(2048);
> >> + blocklen = 2048;
> >> break;
> >> }
> >>
> >> *capacity = 1 + be32_to_cpu(capbuf.lba);
> >> - *sectors_per_frame = be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS;
> >> + *sectors_per_frame = blocklen >> SECTOR_BITS;
> >> return 0;
> >> }
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity
2008-07-30 16:33 ` Greg KH
2008-07-30 19:12 ` Borislav Petkov
@ 2008-07-30 19:27 ` Borislav Petkov
1 sibling, 0 replies; 12+ messages in thread
From: Borislav Petkov @ 2008-07-30 19:27 UTC (permalink / raw)
To: Greg KH
Cc: stable, Andrew Morton, Petr Tesarik, linux-kernel, linux-ide,
Jens Axboe, Jan Kara, Bartlomiej Zolnierkiewicz
... and here the rediffed one for 2.6.25.y:
---
From: Petr Tesarik <ptesarik@suse.cz>
Aesthetic regards aside, commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667
still leaves a bug in the error message, because it uses the unconverted
big-endian value for printk.
Fix this by using a local variable in machine byte order. The result is
correct, more readable, and also produces slightly shorter code on i386.
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
---
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index e54da02..3b388ca 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1411,6 +1411,7 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
int stat;
struct request req;
+ __u32 blocklen;
ide_cd_init_rq(drive, &req);
@@ -1427,23 +1428,24 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
/*
* Sanity check the given block size
*/
- switch (capbuf.blocklen) {
- case __constant_cpu_to_be32(512):
- case __constant_cpu_to_be32(1024):
- case __constant_cpu_to_be32(2048):
- case __constant_cpu_to_be32(4096):
+ blocklen = be32_to_cpu(capbuf.blocklen);
+ switch (blocklen) {
+ case 512:
+ case 1024:
+ case 2048:
+ case 4096:
break;
default:
printk(KERN_ERR "%s: weird block size %u\n",
- drive->name, capbuf.blocklen);
+ drive->name, blocklen);
printk(KERN_ERR "%s: default to 2kb block size\n",
drive->name);
- capbuf.blocklen = __constant_cpu_to_be32(2048);
+ blocklen = 2048;
break;
}
*capacity = 1 + be32_to_cpu(capbuf.lba);
- *sectors_per_frame = be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS;
+ *sectors_per_frame = blocklen >> SECTOR_BITS;
return 0;
}
--
Regards/Gruß,
Boris.
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity
2008-07-30 19:25 ` Bartlomiej Zolnierkiewicz
@ 2008-07-30 20:02 ` Andrew Morton
2008-07-30 21:23 ` Bartlomiej Zolnierkiewicz
0 siblings, 1 reply; 12+ messages in thread
From: Andrew Morton @ 2008-07-30 20:02 UTC (permalink / raw)
To: Bartlomiej Zolnierkiewicz
Cc: petkovbb, gregkh, ptesarik, linux-kernel, linux-ide, jens.axboe,
jack
On Wed, 30 Jul 2008 21:25:53 +0200
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> wrote:
> > > Bart owns this patch now. It got lost for a month and it has already
> > > been fixed twice and it is also on the route to 2.6.25.x and 2.6.26.x,
> > > so it'll get complicated. Not a happy little patch.
> >
> > Greg, can you please apply this one on top of -stable.
>
> The usual policy is to not apply to -stable patches which are not in
> Linus' tree so please notify stable@kernelorg team after patch hits
> mainline.
Please put a Cc: <stable@kernel.org> into the changelog. Then the
stable people will notice it when Linus commits it.
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity
2008-07-30 19:12 ` Borislav Petkov
@ 2008-07-30 20:58 ` Greg KH
2008-07-31 3:32 ` Borislav Petkov
0 siblings, 1 reply; 12+ messages in thread
From: Greg KH @ 2008-07-30 20:58 UTC (permalink / raw)
To: petkovbb, Greg KH, stable, Andrew Morton, Petr Tesarik,
linux-kernel, linux-ide
On Wed, Jul 30, 2008 at 09:12:57PM +0200, Borislav Petkov wrote:
> On Wed, Jul 30, 2008 at 09:33:28AM -0700, Greg KH wrote:
> > On Wed, Jul 30, 2008 at 10:52:50AM +0200, Boris Petkov wrote:
> > > On Wed, Jul 30, 2008 at 10:18 AM, Andrew Morton
> > > <akpm@linux-foundation.org> wrote:
> > > > On Wed, 30 Jul 2008 10:10:06 +0200 Petr Tesarik <ptesarik@suse.cz> wrote:
> > > >
> > > >> Resent because of a typo in the LKML address. :(
> > > >
> > > > Thanks.
> > > >
> > > >>
> > > >> Aesthetic regards aside, commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667
> > > >> still leaves a bug in the error message, because it uses the unconverted
> > > >> big-endian value for printk.
> > > >>
> > > >> Fix this by using a local variable in machine byte order. The result is
> > > >> correct, more readable, and also produces slightly shorter code on i386.
> > > >>
> > > >> Cc: Jens Axboe <jens.axboe@oracle.com>
> > > >> Cc: Jan Kara <jack@suse.cz>
> > > >> Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
> > >
> > > I definitely like this one better, thanks.
> > >
> > > Acked-by: Borislav Petkov <petkovbb@gmail.com>
> > >
> > >
> > > >
> > > > Bart owns this patch now. It got lost for a month and it has already
> > > > been fixed twice and it is also on the route to 2.6.25.x and 2.6.26.x,
> > > > so it'll get complicated. Not a happy little patch.
> > >
> > > Greg, can you please apply this one on top of -stable.
> >
> > What one? Do you have a git commit id?
>
> Oh, sorry about that. Ok, you should have in both 2.6.25 and .26 the patch with
> upstream commit id e8e7b9eb11c34ee18bde8b7011af41938d1ad667. I rediffed the new
> one on top, here's the 2.6.26 version, the 2.6.25 one follows.
I need the patch id when this goes to Linus, in his tree. If you add
"cc: stable <stable@kernel.org>" to the signed-off-by area, when it gets
into Linus's tree, we will be automatically notified of it.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity
2008-07-30 20:02 ` Andrew Morton
@ 2008-07-30 21:23 ` Bartlomiej Zolnierkiewicz
0 siblings, 0 replies; 12+ messages in thread
From: Bartlomiej Zolnierkiewicz @ 2008-07-30 21:23 UTC (permalink / raw)
To: Andrew Morton
Cc: petkovbb, gregkh, ptesarik, linux-kernel, linux-ide, jens.axboe,
jack
On Wednesday 30 July 2008, Andrew Morton wrote:
> On Wed, 30 Jul 2008 21:25:53 +0200
> Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> wrote:
>
> > > > Bart owns this patch now. It got lost for a month and it has already
> > > > been fixed twice and it is also on the route to 2.6.25.x and 2.6.26.x,
> > > > so it'll get complicated. Not a happy little patch.
> > >
> > > Greg, can you please apply this one on top of -stable.
> >
> > The usual policy is to not apply to -stable patches which are not in
> > Linus' tree so please notify stable@kernelorg team after patch hits
> > mainline.
>
> Please put a Cc: <stable@kernel.org> into the changelog. Then the
> stable people will notice it when Linus commits it.
Done.
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity
2008-07-30 20:58 ` Greg KH
@ 2008-07-31 3:32 ` Borislav Petkov
0 siblings, 0 replies; 12+ messages in thread
From: Borislav Petkov @ 2008-07-31 3:32 UTC (permalink / raw)
To: Greg KH
Cc: Greg KH, stable, Andrew Morton, Petr Tesarik, linux-kernel,
linux-ide, Jens Axboe, Jan Kara, Bartlomiej Zolnierkiewicz
On Wed, Jul 30, 2008 at 01:58:36PM -0700, Greg KH wrote:
> On Wed, Jul 30, 2008 at 09:12:57PM +0200, Borislav Petkov wrote:
> > On Wed, Jul 30, 2008 at 09:33:28AM -0700, Greg KH wrote:
> > > On Wed, Jul 30, 2008 at 10:52:50AM +0200, Boris Petkov wrote:
> > > > On Wed, Jul 30, 2008 at 10:18 AM, Andrew Morton
> > > > <akpm@linux-foundation.org> wrote:
> > > > > On Wed, 30 Jul 2008 10:10:06 +0200 Petr Tesarik <ptesarik@suse.cz> wrote:
> > > > >
> > > > >> Resent because of a typo in the LKML address. :(
> > > > >
> > > > > Thanks.
> > > > >
> > > > >>
> > > > >> Aesthetic regards aside, commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667
> > > > >> still leaves a bug in the error message, because it uses the unconverted
> > > > >> big-endian value for printk.
> > > > >>
> > > > >> Fix this by using a local variable in machine byte order. The result is
> > > > >> correct, more readable, and also produces slightly shorter code on i386.
> > > > >>
> > > > >> Cc: Jens Axboe <jens.axboe@oracle.com>
> > > > >> Cc: Jan Kara <jack@suse.cz>
> > > > >> Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
> > > >
> > > > I definitely like this one better, thanks.
> > > >
> > > > Acked-by: Borislav Petkov <petkovbb@gmail.com>
> > > >
> > > >
> > > > >
> > > > > Bart owns this patch now. It got lost for a month and it has already
> > > > > been fixed twice and it is also on the route to 2.6.25.x and 2.6.26.x,
> > > > > so it'll get complicated. Not a happy little patch.
> > > >
> > > > Greg, can you please apply this one on top of -stable.
> > >
> > > What one? Do you have a git commit id?
> >
> > Oh, sorry about that. Ok, you should have in both 2.6.25 and .26 the patch with
> > upstream commit id e8e7b9eb11c34ee18bde8b7011af41938d1ad667. I rediffed the new
> > one on top, here's the 2.6.26 version, the 2.6.25 one follows.
>
> I need the patch id when this goes to Linus, in his tree. If you add
> "cc: stable <stable@kernel.org>" to the signed-off-by area, when it gets
> into Linus's tree, we will be automatically notified of it.
Bart already did that. It's now in his pata-2.6 tree.
--
Regards/Gruss,
Boris.
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2008-07-31 3:32 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-07-30 8:10 [PATCH] ide-cd: fix endianity for the error message in cdrom_read_capacity Petr Tesarik
2008-07-30 8:18 ` Andrew Morton
2008-07-30 8:52 ` Boris Petkov
2008-07-30 16:33 ` Greg KH
2008-07-30 19:12 ` Borislav Petkov
2008-07-30 20:58 ` Greg KH
2008-07-31 3:32 ` Borislav Petkov
2008-07-30 19:27 ` Borislav Petkov
2008-07-30 19:25 ` Bartlomiej Zolnierkiewicz
2008-07-30 20:02 ` Andrew Morton
2008-07-30 21:23 ` Bartlomiej Zolnierkiewicz
-- strict thread matches above, loose matches on Subject: below --
2008-07-30 7:42 Petr Tesarik
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).