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[PATCH] uml: add locking to network transport registration

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The registration of host network transports needed some locking.  The
transport list itself is locked, but calls to the registration routines are
not.  This is compensated for by checking that a transport structure is not
yet on any list.

I also took the opportunity to const all fields in the transport structure
except the list, which obviously can be modified.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Dike
2007-02-10 01:43:56 -08:00
committed by Linus Torvalds
parent 190c3e4563
commit d3b7f69de2
2 changed files with 9 additions and 8 deletions
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8
arch/um/include/net_kern.h
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@@ -52,12 +52,12 @@ struct net_kern_info {
struct transport {
struct list_head list;
char *name;
int (*setup)(char *, char **, void *);
const char *name;
int (* const setup)(char *, char **, void *);
const struct net_user_info *user;
const struct net_kern_info *kern;
int private_size;
int setup_size;
const int private_size;
const int setup_size;
};
extern struct net_device *ether_init(int);