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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2007-05-23 13:58:06 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-23 20:14:14 -0700 |
| commit | be324797d9b2a10f767e89dfbd880c735249bef9 (patch) | |
| tree | b5ef4a6cf8d09d3b2209399951dc93d59bb1b477 /drivers/message/i2o/driver.c | |
| parent | e578e9a1cc8a5983d87126d5877e305d3189f1b9 (diff) | |
| download | linux-be324797d9b2a10f767e89dfbd880c735249bef9.tar.gz linux-be324797d9b2a10f767e89dfbd880c735249bef9.tar.bz2 linux-be324797d9b2a10f767e89dfbd880c735249bef9.zip | |
i2o: fix notifiers when max_drivers is configured
Maximum number of I2O drivers which could be registered is configurable by
max_drivers module parameter.
But the module parameter is ignored and default value (I2O_MAX_DRIVERS = 8)
is used in the loops to notify all registered drivers.
Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/message/i2o/driver.c')
| -rw-r--r-- | drivers/message/i2o/driver.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/message/i2o/driver.c b/drivers/message/i2o/driver.c index d330e4eb86ac..a3ee1796af0c 100644 --- a/drivers/message/i2o/driver.c +++ b/drivers/message/i2o/driver.c @@ -20,6 +20,7 @@ #include <linux/workqueue.h> #include <linux/string.h> #include <linux/slab.h> +#include <linux/log2.h> #include "core.h" #define OSM_NAME "i2o" @@ -260,7 +261,7 @@ void i2o_driver_notify_controller_add_all(struct i2o_controller *c) int i; struct i2o_driver *drv; - for (i = 0; i < I2O_MAX_DRIVERS; i++) { + for (i = 0; i < i2o_max_drivers; i++) { drv = i2o_drivers[i]; if (drv) @@ -280,7 +281,7 @@ void i2o_driver_notify_controller_remove_all(struct i2o_controller *c) int i; struct i2o_driver *drv; - for (i = 0; i < I2O_MAX_DRIVERS; i++) { + for (i = 0; i < i2o_max_drivers; i++) { drv = i2o_drivers[i]; if (drv) @@ -299,7 +300,7 @@ void i2o_driver_notify_device_add_all(struct i2o_device *i2o_dev) int i; struct i2o_driver *drv; - for (i = 0; i < I2O_MAX_DRIVERS; i++) { + for (i = 0; i < i2o_max_drivers; i++) { drv = i2o_drivers[i]; if (drv) @@ -318,7 +319,7 @@ void i2o_driver_notify_device_remove_all(struct i2o_device *i2o_dev) int i; struct i2o_driver *drv; - for (i = 0; i < I2O_MAX_DRIVERS; i++) { + for (i = 0; i < i2o_max_drivers; i++) { drv = i2o_drivers[i]; if (drv) @@ -340,8 +341,7 @@ int __init i2o_driver_init(void) spin_lock_init(&i2o_drivers_lock); if ((i2o_max_drivers < 2) || (i2o_max_drivers > 64) || - ((i2o_max_drivers ^ (i2o_max_drivers - 1)) != - (2 * i2o_max_drivers - 1))) { + !is_power_of_2(i2o_max_drivers)) { osm_warn("max_drivers set to %d, but must be >=2 and <= 64 and " "a power of 2\n", i2o_max_drivers); i2o_max_drivers = I2O_MAX_DRIVERS; @@ -349,7 +349,7 @@ int __init i2o_driver_init(void) osm_info("max drivers = %d\n", i2o_max_drivers); i2o_drivers = - kzalloc(i2o_max_drivers * sizeof(*i2o_drivers), GFP_KERNEL); + kcalloc(i2o_max_drivers, sizeof(*i2o_drivers), GFP_KERNEL); if (!i2o_drivers) return -ENOMEM; |