在 2022/05/19 2:12, Joe Perches 写道:
On Wed, 2022-05-18 at 20:26 +0800, Yu Kuai wrote:
Instead of using the long printk(KERN_ERR "nbd: ...") to
output error message, defining pr_fmt and using
the short pr_err("") to do that. The replacemen is done
by using the following command:
sed -i 's/printk(KERN_ERR "nbd: /pr_err("/g' \
drivers/block/nbd.c
It's also good to rewrap to 80 columns where possible.
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
[]
@@ -2130,13 +2130,13 @@ static int nbd_genl_disconnect(struct sk_buff *skb, struct genl_info *info)
nbd = idr_find(&nbd_index_idr, index);
if (!nbd) {
mutex_unlock(&nbd_index_mutex);
- printk(KERN_ERR "nbd: couldn't find device at index %d\n",
+ pr_err("couldn't find device at index %d\n",
index);
like here
return -EINVAL;
}
if (!refcount_inc_not_zero(&nbd->refs)) {
mutex_unlock(&nbd_index_mutex);
- printk(KERN_ERR "nbd: device at index %d is going down\n",
+ pr_err("device at index %d is going down\n",
index);
and here and below...
Hi, Josef
Thanks for your advice, I'll send a new version.
@@ -2170,7 +2170,7 @@ static int nbd_genl_reconfigure(struct sk_buff *skb, struct genl_info *info)
nbd = idr_find(&nbd_index_idr, index);
if (!nbd) {
mutex_unlock(&nbd_index_mutex);
- printk(KERN_ERR "nbd: couldn't find a device at index %d\n",
+ pr_err("couldn't find a device at index %d\n",
index);
return -EINVAL;
}
@@ -2192,7 +2192,7 @@ static int nbd_genl_reconfigure(struct sk_buff *skb, struct genl_info *info)
}
if (!refcount_inc_not_zero(&nbd->refs)) {
mutex_unlock(&nbd_index_mutex);
- printk(KERN_ERR "nbd: device at index %d is going down\n",
+ pr_err("device at index %d is going down\n",
index);
return -EINVAL;
}
.
