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net/ipv6/addrconf: simplify sysctl registration

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Struct ctl_table_header holds pointer to sysctl table which could be used
for freeing it after unregistration. IPv4 sysctls already use that.
Remove redundant NULL assignment: ndev allocated using kzalloc.

This also saves some bytes: sysctl table could be shorter than
DEVCONF_MAX+1 if some options are disable in config.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Konstantin Khlebnikov 2016-04-18 14:41:10 +03:00 • committed by David S. Miller
parent 35c5845957
commit 607ea7cda6
2 changed files with 19 additions and 27 deletions
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3
include/linux/ipv6.h
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@ -63,7 +63,8 @@ struct ipv6_devconf {
} stable_secret;
__s32 use_oif_addrs_only;
__s32 keep_addr_on_down;
void *sysctl;
struct ctl_table_header *sysctl_header;
};
struct ipv6_params {