[PATCH net-next v2] docs/conf.py: add function attribute '__fix_address' to conf.py

[menglong8 . dong]

From: Menglong Dong <imagedong@xxxxxxxxxxx>

Stephen Rothwell reported htmldocs warning when merging net-next:

Documentation/networking/kapi:26: net/core/skbuff.c:780: WARNING: Error in declarator or parameters
Invalid C declaration: Expecting "(" in parameters. [error at 19]
  void __fix_address kfree_skb_reason (struct sk_buff *skb, enum skb_drop_reason reason)
  -------------------^

Add __fix_address keyword to c_id_attributes array in conf.py to fix
the warning.

Link: https://lore.kernel.org/linux-next/20220825154105.534d78ab@xxxxxxxxxxxxxxxx/
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Menglong Dong <imagedong@xxxxxxxxxxx>
Tested-by: Bagas Sanjaya <bagasdotme@xxxxxxxxx>
Reviewed-by: Bagas Sanjaya <bagasdotme@xxxxxxxxx>
---
v2:
- optimize the commit log, as Bagas Sanjaya suggested.
---
 Documentation/conf.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/conf.py b/Documentation/conf.py
index 934727e23e0e..255384d094bf 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -86,6 +86,7 @@ if major >= 3:
             "__used",
             "__weak",
             "noinline",
+            "__fix_address",
 
             # include/linux/memblock.h:
             "__init_memblock",
-- 
2.37.2