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authorJohannes Berg <johannes.berg@intel.com>2016-01-06 14:38:40 +0100
committerMarcel Holtmann <marcel@holtmann.org>2016-01-06 16:36:44 +0100
commit787b306cf3296bdce5c8559206b237c1ae107484 (patch)
tree548fde7ccb1d5e155ba766b5f19b092a29dee368 /net
parent78b781ca0d35191ebf8d8cad8beec810270f0f2e (diff)
Bluetooth: avoid rebuilding hci_sock all the time
Instead, allow using string formatting with send_monitor_note() and access init_utsname(). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net')
-rw-r--r--net/bluetooth/hci_sock.c27
1 files changed, 18 insertions, 9 deletions
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 41f579ba447b..1298d723c0e0 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -25,9 +25,8 @@
/* Bluetooth HCI sockets. */
#include <linux/export.h>
+#include <linux/utsname.h>
#include <asm/unaligned.h>
-#include <generated/compile.h>
-#include <generated/utsrelease.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
@@ -385,17 +384,26 @@ static struct sk_buff *create_monitor_event(struct hci_dev *hdev, int event)
return skb;
}
-static void send_monitor_note(struct sock *sk, const char *text)
+static void __printf(2, 3)
+send_monitor_note(struct sock *sk, const char *fmt, ...)
{
- size_t len = strlen(text);
+ size_t len;
struct hci_mon_hdr *hdr;
struct sk_buff *skb;
+ va_list args;
+
+ va_start(args, fmt);
+ len = vsnprintf(NULL, 0, fmt, args);
+ va_end(args);
skb = bt_skb_alloc(len + 1, GFP_ATOMIC);
if (!skb)
return;
- strcpy(skb_put(skb, len + 1), text);
+ va_start(args, fmt);
+ vsprintf(skb_put(skb, len), fmt, args);
+ *skb_put(skb, 1) = 0;
+ va_end(args);
__net_timestamp(skb);
@@ -897,10 +905,11 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
*/
hci_sock_set_flag(sk, HCI_SOCK_TRUSTED);
- send_monitor_note(sk, "Linux version " UTS_RELEASE
- " (" UTS_MACHINE ")");
- send_monitor_note(sk, "Bluetooth subsystem version "
- BT_SUBSYS_VERSION);
+ send_monitor_note(sk, "Linux version %s (%s)",
+ init_utsname()->release,
+ init_utsname()->machine);
+ send_monitor_note(sk, "Bluetooth subsystem version %s",
+ BT_SUBSYS_VERSION);
send_monitor_replay(sk);
atomic_inc(&monitor_promisc);