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authorIngo Molnar <mingo@elte.hu>2009-01-21 10:39:51 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-21 10:39:51 +0100
commit198030782cedf25391e67e7c88b04f87a5eb6563 (patch)
tree5b7368c6bf052bcb4bb273497a57900720d36f51 /net/xfrm/xfrm_user.c
parent4ec71fa2d2c3f1040348f2604f4b8ccc833d1c2e (diff)
parent92181f190b649f7ef2b79cbf5c00f26ccc66da2a (diff)
Merge branch 'x86/mm' into core/percpu
Conflicts: arch/x86/mm/fault.c
Diffstat (limited to 'net/xfrm/xfrm_user.c')
-rw-r--r--net/xfrm/xfrm_user.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index b95a2d64eb5..7877e7975da 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -1914,10 +1914,17 @@ static int xfrm_send_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
}
#endif
+/* For the xfrm_usersa_info cases we have to work around some 32-bit vs.
+ * 64-bit compatability issues. On 32-bit the structure is 220 bytes, but
+ * for 64-bit it gets padded out to 224 bytes. Those bytes are just
+ * padding and don't have any content we care about. Therefore as long
+ * as we have enough bytes for the content we can make both cases work.
+ */
+
#define XMSGSIZE(type) sizeof(struct type)
static const int xfrm_msg_min[XFRM_NR_MSGTYPES] = {
- [XFRM_MSG_NEWSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_info),
+ [XFRM_MSG_NEWSA - XFRM_MSG_BASE] = 220, /* see above */
[XFRM_MSG_DELSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_id),
[XFRM_MSG_GETSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_id),
[XFRM_MSG_NEWPOLICY - XFRM_MSG_BASE] = XMSGSIZE(xfrm_userpolicy_info),
@@ -1927,7 +1934,7 @@ static const int xfrm_msg_min[XFRM_NR_MSGTYPES] = {
[XFRM_MSG_ACQUIRE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_user_acquire),
[XFRM_MSG_EXPIRE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_user_expire),
[XFRM_MSG_UPDPOLICY - XFRM_MSG_BASE] = XMSGSIZE(xfrm_userpolicy_info),
- [XFRM_MSG_UPDSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_info),
+ [XFRM_MSG_UPDSA - XFRM_MSG_BASE] = 220, /* see above */
[XFRM_MSG_POLEXPIRE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_user_polexpire),
[XFRM_MSG_FLUSHSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_flush),
[XFRM_MSG_FLUSHPOLICY - XFRM_MSG_BASE] = 0,