tun: get rid of DBG1() macro

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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 <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Michal Kubecek 2020-03-04 17:24:04 +01:00 • committed by David S. Miller

parent 516c512bde

commit 7522416d25

1 changed files with 0 additions and 14 deletions

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drivers/net/tun.c

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