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ide: make legacy IDE VLB modules check for the "probe" kernel params (v2)

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Legacy IDE VLB host drivers didn't check for "probe" options when compiled
as modules, which was obviously wrong as we don't want module to poke at
random I/O ports by simply loading it.  Fix it by adding "probe" module param
to legacy IDE VLB host drivers.

v2:
* don't obsolete old "ide0=dtc2278/ht6560b/qd65xx/ali14xx/umc8672"
  IDE driver options yet (per Alan Cox's request) and enhance documentation

Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2007-03-03 17:48:55 +01:00
commit 849138827c
8 changed files with 66 additions and 20 deletions
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10
drivers/ide/Kconfig
View file

@ -1023,7 +1023,7 @@ config BLK_DEV_4DRIVES
config BLK_DEV_ALI14XX
tristate "ALI M14xx support"
help
This driver is enabled at runtime using the "ide0=ali14xx" kernel
This driver is enabled at runtime using the "ali14xx.probe" kernel
boot parameter. It enables support for the secondary IDE interface
of the ALI M1439/1443/1445/1487/1489 chipsets, and permits faster
I/O speeds to be set as well. See the files
@ -1033,7 +1033,7 @@ config BLK_DEV_ALI14XX
config BLK_DEV_DTC2278
tristate "DTC-2278 support"
help
This driver is enabled at runtime using the "ide0=dtc2278" kernel
This driver is enabled at runtime using the "dtc2278.probe" kernel
boot parameter. It enables support for the secondary IDE interface
of the DTC-2278 card, and permits faster I/O speeds to be set as
well. See the <file:Documentation/ide.txt> and
@ -1042,7 +1042,7 @@ config BLK_DEV_DTC2278
config BLK_DEV_HT6560B
tristate "Holtek HT6560B support"
help
This driver is enabled at runtime using the "ide0=ht6560b" kernel
This driver is enabled at runtime using the "ht6560b.probe" kernel
boot parameter. It enables support for the secondary IDE interface
of the Holtek card, and permits faster I/O speeds to be set as well.
See the <file:Documentation/ide.txt> and
@ -1051,7 +1051,7 @@ config BLK_DEV_HT6560B
config BLK_DEV_QD65XX
tristate "QDI QD65xx support"
help
This driver is enabled at runtime using the "ide0=qd65xx" kernel
This driver is enabled at runtime using the "qd65xx.probe" kernel
boot parameter. It permits faster I/O speeds to be set. See the
<file:Documentation/ide.txt> and <file:drivers/ide/legacy/qd65xx.c> for
more info.
@ -1059,7 +1059,7 @@ config BLK_DEV_QD65XX
config BLK_DEV_UMC8672
tristate "UMC-8672 support"
help
This driver is enabled at runtime using the "ide0=umc8672" kernel
This driver is enabled at runtime using the "umc8672.probe" kernel
boot parameter. It enables support for the secondary IDE interface
of the UMC-8672, and permits faster I/O speeds to be set as well.
See the files <file:Documentation/ide.txt> and

10
drivers/ide/ide.c
View file

@ -1484,23 +1484,23 @@ static int __init match_parm (char *s, const char *keywords[], int vals[], int m
}
#ifdef CONFIG_BLK_DEV_ALI14XX
static int __initdata probe_ali14xx;
extern int probe_ali14xx;
extern int ali14xx_init(void);
#endif
#ifdef CONFIG_BLK_DEV_UMC8672
static int __initdata probe_umc8672;
extern int probe_umc8672;
extern int umc8672_init(void);
#endif
#ifdef CONFIG_BLK_DEV_DTC2278
static int __initdata probe_dtc2278;
extern int probe_dtc2278;
extern int dtc2278_init(void);
#endif
#ifdef CONFIG_BLK_DEV_HT6560B
static int __initdata probe_ht6560b;
extern int probe_ht6560b;
extern int ht6560b_init(void);
#endif
#ifdef CONFIG_BLK_DEV_QD65XX
static int __initdata probe_qd65xx;
extern int probe_qd65xx;
extern int qd65xx_init(void);
#endif

9
drivers/ide/legacy/ali14xx.c
View file

@ -228,9 +228,17 @@ static int __init ali14xx_probe(void)
return 0;
}
int probe_ali14xx = 0;
module_param_named(probe, probe_ali14xx, bool, 0);
MODULE_PARM_DESC(probe, "probe for ALI M14xx chipsets");
/* Can be called directly from ide.c. */
int __init ali14xx_init(void)
{
if (probe_ali14xx == 0)
goto out;
/* auto-detect IDE controller port */
if (findPort()) {
if (ali14xx_probe())
@ -238,6 +246,7 @@ int __init ali14xx_init(void)
return 0;
}
printk(KERN_ERR "ali14xx: not found.\n");
out:
return -ENODEV;
}

12
drivers/ide/legacy/dtc2278.c
View file

@ -92,7 +92,7 @@ static void tune_dtc2278 (ide_drive_t *drive, u8 pio)
HWIF(drive)->drives[!drive->select.b.unit].io_32bit = 1;
}
static int __init probe_dtc2278(void)
static int __init dtc2278_probe(void)
{
unsigned long flags;
ide_hwif_t *hwif, *mate;
@ -143,10 +143,18 @@ static int __init probe_dtc2278(void)
return 0;
}
int probe_dtc2278 = 0;
module_param_named(probe, probe_dtc2278, bool, 0);
MODULE_PARM_DESC(probe, "probe for DTC2278xx chipsets");
/* Can be called directly from ide.c. */
int __init dtc2278_init(void)
{
if (probe_dtc2278()) {
if (probe_dtc2278 == 0)
return -ENODEV;
if (dtc2278_probe()) {
printk(KERN_ERR "dtc2278: ide interfaces already in use!\n");
return -EBUSY;
}

8
drivers/ide/legacy/ht6560b.c
View file

@ -301,12 +301,20 @@ static void tune_ht6560b (ide_drive_t *drive, u8 pio)
#endif
}
int probe_ht6560b = 0;
module_param_named(probe, probe_ht6560b, bool, 0);
MODULE_PARM_DESC(probe, "probe for HT6560B chipset");
/* Can be called directly from ide.c. */
int __init ht6560b_init(void)
{
ide_hwif_t *hwif, *mate;
int t;
if (probe_ht6560b == 0)
return -ENODEV;
hwif = &ide_hwifs[0];
mate = &ide_hwifs[1];

8
drivers/ide/legacy/qd65xx.c
View file

@ -488,9 +488,17 @@ static int __init qd_probe(int base)
return 1;
}
int probe_qd65xx = 0;
module_param_named(probe, probe_qd65xx, bool, 0);
MODULE_PARM_DESC(probe, "probe for QD65xx chipsets");
/* Can be called directly from ide.c. */
int __init qd65xx_init(void)
{
if (probe_qd65xx == 0)
return -ENODEV;
if (qd_probe(0x30))
qd_probe(0xb0);
if (ide_hwifs[0].chipset != ide_qd65xx &&

15
drivers/ide/legacy/umc8672.c
View file

@ -165,12 +165,21 @@ static int __init umc8672_probe(void)
return 0;
}
int probe_umc8672 = 0;
module_param_named(probe, probe_umc8672, bool, 0);
MODULE_PARM_DESC(probe, "probe for UMC8672 chipset");
/* Can be called directly from ide.c. */
int __init umc8672_init(void)
{
if (umc8672_probe())
return -ENODEV;
return 0;
if (probe_umc8672 == 0)
goto out;
if (umc8672_probe() == 0)
return 0;;
out:
return -ENODEV;;
}
#ifdef MODULE