From 7522416d2569cb3767c84beaa602496c2753a692 Mon Sep 17 00:00:00 2001 From: Michal Kubecek Date: Wed, 4 Mar 2020 17:24:04 +0100 Subject: tun: get rid of DBG1() macro This macro is no-op unless TUN_DEBUG is defined (which requires editing and recompiling the source) and only does something if variable debug is 2 but that variable is zero initialized and never set to anything else. Moreover, the only use of the macro informs about entering function tun_chr_open() which can be easily achieved using ftrace or kprobe. Drop DBG1() macro, its only use and global variable debug. Signed-off-by: Michal Kubecek Signed-off-by: David S. Miller --- drivers/net/tun.c | 14 -------------- 1 file changed, 14 deletions(-) (limited to 'drivers/net/tun.c') diff --git a/drivers/net/tun.c b/drivers/net/tun.c index ea64c311a554..59290ef07497 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -79,29 +79,17 @@ static void tun_default_link_ksettings(struct net_device *dev, /* #define TUN_DEBUG 1 */ #ifdef TUN_DEBUG -static int debug; - #define tun_debug(level, tun, fmt, args...) \ do { \ if (tun->debug) \ netdev_printk(level, tun->dev, fmt, ##args); \ } while (0) -#define DBG1(level, fmt, args...) \ -do { \ - if (debug == 2) \ - printk(level fmt, ##args); \ -} while (0) #else #define tun_debug(level, tun, fmt, args...) \ do { \ if (0) \ netdev_printk(level, tun->dev, fmt, ##args); \ } while (0) -#define DBG1(level, fmt, args...) \ -do { \ - if (0) \ - printk(level fmt, ##args); \ -} while (0) #endif #define TUN_RX_PAD (NET_IP_ALIGN + NET_SKB_PAD) @@ -3415,8 +3403,6 @@ static int tun_chr_open(struct inode *inode, struct file * file) struct net *net = current->nsproxy->net_ns; struct tun_file *tfile; - DBG1(KERN_INFO, "tunX: tun_chr_open\n"); - tfile = (struct tun_file *)sk_alloc(net, AF_UNSPEC, GFP_KERNEL, &tun_proto, 0); if (!tfile) -- cgit v1.2.3