linux-sg2042/net/ax25
Sasha Levin b67bfe0d42 hlist: drop the node parameter from iterators
I'm not sure why, but the hlist for each entry iterators were conceived

        list_for_each_entry(pos, head, member)

The hlist ones were greedy and wanted an extra parameter:

        hlist_for_each_entry(tpos, pos, head, member)

Why did they need an extra pos parameter? I'm not quite sure. Not only
they don't really need it, it also prevents the iterator from looking
exactly like the list iterator, which is unfortunate.

Besides the semantic patch, there was some manual work required:

 - Fix up the actual hlist iterators in linux/list.h
 - Fix up the declaration of other iterators based on the hlist ones.
 - A very small amount of places were using the 'node' parameter, this
 was modified to use 'obj->member' instead.
 - Coccinelle didn't handle the hlist_for_each_entry_safe iterator
 properly, so those had to be fixed up manually.

The semantic patch which is mostly the work of Peter Senna Tschudin is here:

@@
iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host;

type T;
expression a,c,d,e;
identifier b;
statement S;
@@

-T b;
    <+... when != b
(
hlist_for_each_entry(a,
- b,
c, d) S
|
hlist_for_each_entry_continue(a,
- b,
c) S
|
hlist_for_each_entry_from(a,
- b,
c) S
|
hlist_for_each_entry_rcu(a,
- b,
c, d) S
|
hlist_for_each_entry_rcu_bh(a,
- b,
c, d) S
|
hlist_for_each_entry_continue_rcu_bh(a,
- b,
c) S
|
for_each_busy_worker(a, c,
- b,
d) S
|
ax25_uid_for_each(a,
- b,
c) S
|
ax25_for_each(a,
- b,
c) S
|
inet_bind_bucket_for_each(a,
- b,
c) S
|
sctp_for_each_hentry(a,
- b,
c) S
|
sk_for_each(a,
- b,
c) S
|
sk_for_each_rcu(a,
- b,
c) S
|
sk_for_each_from
-(a, b)
+(a)
S
+ sk_for_each_from(a) S
|
sk_for_each_safe(a,
- b,
c, d) S
|
sk_for_each_bound(a,
- b,
c) S
|
hlist_for_each_entry_safe(a,
- b,
c, d, e) S
|
hlist_for_each_entry_continue_rcu(a,
- b,
c) S
|
nr_neigh_for_each(a,
- b,
c) S
|
nr_neigh_for_each_safe(a,
- b,
c, d) S
|
nr_node_for_each(a,
- b,
c) S
|
nr_node_for_each_safe(a,
- b,
c, d) S
|
- for_each_gfn_sp(a, c, d, b) S
+ for_each_gfn_sp(a, c, d) S
|
- for_each_gfn_indirect_valid_sp(a, c, d, b) S
+ for_each_gfn_indirect_valid_sp(a, c, d) S
|
for_each_host(a,
- b,
c) S
|
for_each_host_safe(a,
- b,
c, d) S
|
for_each_mesh_entry(a,
- b,
c, d) S
)
    ...+>

[akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c]
[akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c]
[akpm@linux-foundation.org: checkpatch fixes]
[akpm@linux-foundation.org: fix warnings]
[akpm@linux-foudnation.org: redo intrusive kvm changes]
Tested-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 19:10:24 -08:00
..
Kconfig Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
TODO [AX25]: Remove obsolete references to BKL from TODO file. 2008-03-26 02:14:38 -07:00
af_ax25.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
ax25_addr.c small cleanup in ax25_addr_parse() 2012-07-09 00:16:16 -07:00
ax25_dev.c net ax25: Simplify and cleanup the ax25 sysctl handling. 2012-04-20 21:22:28 -04:00
ax25_ds_in.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ax25_ds_subr.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
ax25_ds_timer.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
ax25_iface.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
ax25_in.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ax25_ip.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
ax25_out.c net: use consume_skb() in place of kfree_skb() 2012-06-04 11:27:40 -04:00
ax25_route.c net: use consume_skb() in place of kfree_skb() 2012-06-04 11:27:40 -04:00
ax25_std_in.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ax25_std_subr.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ax25_std_timer.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ax25_subr.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ax25_timer.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ax25_uid.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
sysctl_net_ax25.c net ax25: Simplify and cleanup the ax25 sysctl handling. 2012-04-20 21:22:28 -04:00