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authorGao Feng <fgao@ikuai8.com>2016-10-27 09:05:22 +0800
committerDavid S. Miller <davem@davemloft.net>2016-10-31 10:56:47 -0400
commit20861f26e33d76a4f3587bcc866fa1dab3e01094 (patch)
treef27493e8976cf194e01148dd10f3183686d057c5 /net/core/dev.c
parentc62cce2caee558e18aa05c01c2fd3b40f07174f2 (diff)
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driver: tun: Use new macro SOCK_IOC_TYPE instead of literal number 0x89
The current codes use _IOC_TYPE(cmd) == 0x89 to check if the cmd is one socket ioctl command like SIOCGIFHWADDR. But the literal number 0x89 may confuse readers. So create one macro SOCK_IOC_TYPE to enhance the readability. Signed-off-by: Gao Feng <fgao@ikuai8.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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