net: use kasprintf() for socket cache names

kasprintf() makes code smaller.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/sock.c b/net/core/sock.c
index ceef50b..472a59f 100644 (file)
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2228,13 +2228,10 @@ int proto_register(struct proto *prot, int alloc_slab)
                }
 
                if (prot->rsk_prot != NULL) {
-                       static const char mask[] = "request_sock_%s";
-
-                       prot->rsk_prot->slab_name = kmalloc(strlen(prot->name) + sizeof(mask) - 1, GFP_KERNEL);
+                       prot->rsk_prot->slab_name = kasprintf(GFP_KERNEL, "request_sock_%s", prot->name);
                        if (prot->rsk_prot->slab_name == NULL)
                                goto out_free_sock_slab;
 
-                       sprintf(prot->rsk_prot->slab_name, mask, prot->name);
                        prot->rsk_prot->slab = kmem_cache_create(prot->rsk_prot->slab_name,
                                                                 prot->rsk_prot->obj_size, 0,
                                                                 SLAB_HWCACHE_ALIGN, NULL);
@@ -2247,14 +2244,11 @@ int proto_register(struct proto *prot, int alloc_slab)
                }
 
                if (prot->twsk_prot != NULL) {
-                       static const char mask[] = "tw_sock_%s";
-
-                       prot->twsk_prot->twsk_slab_name = kmalloc(strlen(prot->name) + sizeof(mask) - 1, GFP_KERNEL);
+                       prot->twsk_prot->twsk_slab_name = kasprintf(GFP_KERNEL, "tw_sock_%s", prot->name);
 
                        if (prot->twsk_prot->twsk_slab_name == NULL)
                                goto out_free_request_sock_slab;
 
-                       sprintf(prot->twsk_prot->twsk_slab_name, mask, prot->name);
                        prot->twsk_prot->twsk_slab =
                                kmem_cache_create(prot->twsk_prot->twsk_slab_name,
                                                  prot->twsk_prot->twsk_obj_size,