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 Signed-off-by: Hou Tao <houtao1@xxxxxxxxxx> Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx> --- drivers/block/nbd.c | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 566aabcaff51..8d15a9d929c7 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1930,16 +1930,16 @@ static int nbd_genl_connect(struct sk_buff *skb, struct genl_info *info) * MKDEV() expect that the max bits of first_minor is 20. */ if (index < 0 || index > MINORMASK >> part_shift) { - printk(KERN_ERR "nbd: illegal input index %d\n", index); + pr_err("illegal input index %d\n", index); return -EINVAL; } } if (!info->attrs[NBD_ATTR_SOCKETS]) { - printk(KERN_ERR "nbd: must specify at least one socket\n"); + pr_err("must specify at least one socket\n"); return -EINVAL; } if (!info->attrs[NBD_ATTR_SIZE_BYTES]) { - printk(KERN_ERR "nbd: must specify a size in bytes for the device\n"); + pr_err("must specify a size in bytes for the device\n"); return -EINVAL; } again: @@ -1975,7 +1975,7 @@ static int nbd_genl_connect(struct sk_buff *skb, struct genl_info *info) nbd_put(nbd); if (index == -1) goto again; - printk(KERN_ERR "nbd: nbd%d already in use\n", index); + pr_err("nbd%d already in use\n", index); return -EBUSY; } if (WARN_ON(nbd->config)) { @@ -1987,7 +1987,7 @@ static int nbd_genl_connect(struct sk_buff *skb, struct genl_info *info) if (IS_ERR(config)) { mutex_unlock(&nbd->config_lock); nbd_put(nbd); - printk(KERN_ERR "nbd: couldn't allocate config\n"); + pr_err("couldn't allocate config\n"); return PTR_ERR(config); } nbd->config = config; @@ -2043,7 +2043,7 @@ static int nbd_genl_connect(struct sk_buff *skb, struct genl_info *info) struct nlattr *socks[NBD_SOCK_MAX+1]; if (nla_type(attr) != NBD_SOCK_ITEM) { - printk(KERN_ERR "nbd: socks must be embedded in a SOCK_ITEM attr\n"); + pr_err("socks must be embedded in a SOCK_ITEM attr\n"); ret = -EINVAL; goto out; } @@ -2052,7 +2052,7 @@ static int nbd_genl_connect(struct sk_buff *skb, struct genl_info *info) nbd_sock_policy, info->extack); if (ret != 0) { - printk(KERN_ERR "nbd: error processing sock list\n"); + pr_err("error processing sock list\n"); ret = -EINVAL; goto out; } @@ -2123,7 +2123,7 @@ static int nbd_genl_disconnect(struct sk_buff *skb, struct genl_info *info) return -EPERM; if (!info->attrs[NBD_ATTR_INDEX]) { - printk(KERN_ERR "nbd: must specify an index to disconnect\n"); + pr_err("must specify an index to disconnect\n"); return -EINVAL; } index = nla_get_u32(info->attrs[NBD_ATTR_INDEX]); @@ -2131,13 +2131,13 @@ 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); 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); return -EINVAL; } @@ -2163,7 +2163,7 @@ static int nbd_genl_reconfigure(struct sk_buff *skb, struct genl_info *info) return -EPERM; if (!info->attrs[NBD_ATTR_INDEX]) { - printk(KERN_ERR "nbd: must specify a device to reconfigure\n"); + pr_err("must specify a device to reconfigure\n"); return -EINVAL; } index = nla_get_u32(info->attrs[NBD_ATTR_INDEX]); @@ -2171,7 +2171,7 @@ 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; } @@ -2193,7 +2193,7 @@ 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; } @@ -2258,7 +2258,7 @@ static int nbd_genl_reconfigure(struct sk_buff *skb, struct genl_info *info) struct nlattr *socks[NBD_SOCK_MAX+1]; if (nla_type(attr) != NBD_SOCK_ITEM) { - printk(KERN_ERR "nbd: socks must be embedded in a SOCK_ITEM attr\n"); + pr_err("socks must be embedded in a SOCK_ITEM attr\n"); ret = -EINVAL; goto out; } @@ -2267,7 +2267,7 @@ static int nbd_genl_reconfigure(struct sk_buff *skb, struct genl_info *info) nbd_sock_policy, info->extack); if (ret != 0) { - printk(KERN_ERR "nbd: error processing sock list\n"); + pr_err("error processing sock list\n"); ret = -EINVAL; goto out; } @@ -2484,7 +2484,7 @@ static int __init nbd_init(void) BUILD_BUG_ON(sizeof(struct nbd_request) != 28); if (max_part < 0) { - printk(KERN_ERR "nbd: max_part must be >= 0\n"); + pr_err("max_part must be >= 0\n"); return -EINVAL; } @@ -2563,10 +2563,10 @@ static void __exit nbd_cleanup(void) nbd = list_first_entry(&del_list, struct nbd_device, list); list_del_init(&nbd->list); if (refcount_read(&nbd->config_refs)) - printk(KERN_ERR "nbd: possibly leaking nbd_config (ref %d)\n", + pr_err("possibly leaking nbd_config (ref %d)\n", refcount_read(&nbd->config_refs)); if (refcount_read(&nbd->refs) != 1) - printk(KERN_ERR "nbd: possibly leaking a device\n"); + pr_err("possibly leaking a device\n"); nbd_put(nbd); } -- 2.31.1