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crypto: nx - Rename devdata_mutex to devdata_spinlock

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Rename devdata_mutex to devdata_spinlock to accurately reflect its
implementation as a spinlock.

[1] v1 https://lore.kernel.org/all/ZwyqD-w5hEhrnqTB@linux.ibm.com

Signed-off-by: Vishal Chourasia <vishalc@linux.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Vishal Chourasia 2024-10-15 16:25:51 +05:30 committed by Herbert Xu
parent 662f2f13e6
commit bdd9155560
1 changed files with 17 additions and 17 deletions
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34
drivers/crypto/nx/nx-common-pseries.c
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@ -133,7 +133,7 @@ struct nx842_devdata {
};
static struct nx842_devdata __rcu *devdata;
static DEFINE_SPINLOCK(devdata_mutex);
static DEFINE_SPINLOCK(devdata_spinlock);
#define NX842_COUNTER_INC(_x) \
static inline void nx842_inc_##_x( \
@ -750,15 +750,15 @@ static int nx842_OF_upd(struct property *new_prop)
if (!new_devdata)
return -ENOMEM;
spin_lock_irqsave(&devdata_mutex, flags);
spin_lock_irqsave(&devdata_spinlock, flags);
old_devdata = rcu_dereference_check(devdata,
lockdep_is_held(&devdata_mutex));
lockdep_is_held(&devdata_spinlock));
if (old_devdata)
of_node = old_devdata->dev->of_node;
if (!old_devdata || !of_node) {
pr_err("%s: device is not available\n", __func__);
spin_unlock_irqrestore(&devdata_mutex, flags);
spin_unlock_irqrestore(&devdata_spinlock, flags);
kfree(new_devdata);
return -ENODEV;
}
@ -810,7 +810,7 @@ static int nx842_OF_upd(struct property *new_prop)
old_devdata->max_sg_len);
rcu_assign_pointer(devdata, new_devdata);
spin_unlock_irqrestore(&devdata_mutex, flags);
spin_unlock_irqrestore(&devdata_spinlock, flags);
synchronize_rcu();
dev_set_drvdata(new_devdata->dev, new_devdata);
kfree(old_devdata);
@ -821,13 +821,13 @@ static int nx842_OF_upd(struct property *new_prop)
dev_info(old_devdata->dev, "%s: device disabled\n", __func__);
nx842_OF_set_defaults(new_devdata);
rcu_assign_pointer(devdata, new_devdata);
spin_unlock_irqrestore(&devdata_mutex, flags);
spin_unlock_irqrestore(&devdata_spinlock, flags);
synchronize_rcu();
dev_set_drvdata(new_devdata->dev, new_devdata);
kfree(old_devdata);
} else {
dev_err(old_devdata->dev, "%s: could not update driver from hardware\n", __func__);
spin_unlock_irqrestore(&devdata_mutex, flags);
spin_unlock_irqrestore(&devdata_spinlock, flags);
}
if (!ret)
@ -1045,9 +1045,9 @@ static int nx842_probe(struct vio_dev *viodev,
return -ENOMEM;
}
spin_lock_irqsave(&devdata_mutex, flags);
spin_lock_irqsave(&devdata_spinlock, flags);
old_devdata = rcu_dereference_check(devdata,
lockdep_is_held(&devdata_mutex));
lockdep_is_held(&devdata_spinlock));
if (old_devdata && old_devdata->vdev != NULL) {
dev_err(&viodev->dev, "%s: Attempt to register more than one instance of the hardware\n", __func__);
@ -1062,7 +1062,7 @@ static int nx842_probe(struct vio_dev *viodev,
nx842_OF_set_defaults(new_devdata);
rcu_assign_pointer(devdata, new_devdata);
spin_unlock_irqrestore(&devdata_mutex, flags);
spin_unlock_irqrestore(&devdata_spinlock, flags);
synchronize_rcu();
kfree(old_devdata);
@ -1101,7 +1101,7 @@ static int nx842_probe(struct vio_dev *viodev,
return 0;
error_unlock:
spin_unlock_irqrestore(&devdata_mutex, flags);
spin_unlock_irqrestore(&devdata_spinlock, flags);
if (new_devdata)
kfree(new_devdata->counters);
kfree(new_devdata);
@ -1122,12 +1122,12 @@ static void nx842_remove(struct vio_dev *viodev)
crypto_unregister_alg(&nx842_pseries_alg);
spin_lock_irqsave(&devdata_mutex, flags);
spin_lock_irqsave(&devdata_spinlock, flags);
old_devdata = rcu_dereference_check(devdata,
lockdep_is_held(&devdata_mutex));
lockdep_is_held(&devdata_spinlock));
of_reconfig_notifier_unregister(&nx842_of_nb);
RCU_INIT_POINTER(devdata, NULL);
spin_unlock_irqrestore(&devdata_mutex, flags);
spin_unlock_irqrestore(&devdata_spinlock, flags);
synchronize_rcu();
dev_set_drvdata(&viodev->dev, NULL);
if (old_devdata)
@ -1257,11 +1257,11 @@ static void __exit nx842_pseries_exit(void)
crypto_unregister_alg(&nx842_pseries_alg);
spin_lock_irqsave(&devdata_mutex, flags);
spin_lock_irqsave(&devdata_spinlock, flags);
old_devdata = rcu_dereference_check(devdata,
lockdep_is_held(&devdata_mutex));
lockdep_is_held(&devdata_spinlock));
RCU_INIT_POINTER(devdata, NULL);
spin_unlock_irqrestore(&devdata_mutex, flags);
spin_unlock_irqrestore(&devdata_spinlock, flags);
synchronize_rcu();
if (old_devdata && old_devdata->dev)
dev_set_drvdata(old_devdata->dev, NULL);