tcp_output: fix sparse warning for tcp_wfree
tcp_output: fix sparse warning for tcp_wfree

Fix sparse warning:
	* symbol 'tcp_wfree' was not declared. Should it be static?

Signed-off-by: Silviu-Mihai Popescu <38d685bd5a9fb1461da4e8b724833da9ca5a2877@gmail.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas