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| author | Johannes Berg <johannes.berg@intel.com> | 2016-01-06 14:38:40 +0100 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2016-01-06 16:36:44 +0100 |
| commit | 787b306cf3296bdce5c8559206b237c1ae107484 (patch) | |
| tree | 548fde7ccb1d5e155ba766b5f19b092a29dee368 /net/bluetooth | |
| parent | 78b781ca0d35191ebf8d8cad8beec810270f0f2e (diff) | |
| download | linux-0-day-787b306cf3296bdce5c8559206b237c1ae107484.tar.gz linux-0-day-787b306cf3296bdce5c8559206b237c1ae107484.tar.xz | |
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/bluetooth')
| -rw-r--r-- | net/bluetooth/hci_sock.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 41f579ba447b7..1298d723c0e08 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); |