[Xen-devel] [PATCH] make shared ring pad field less enticing for users by adding a __ prefix

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Cc: Daniel Stodden <daniel.stodden@xxxxxxxxxx>
Cc: Dongxiao Xu <dongxiao.xu@xxxxxxxxx>
---
 include/xen/interface/io/ring.h |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/xen/interface/io/ring.h b/include/xen/interface/io/ring.h
index 7b301fa..fae3296 100644
--- a/include/xen/interface/io/ring.h
+++ b/include/xen/interface/io/ring.h
@@ -82,7 +82,7 @@ struct __name##_sring {                                       
                \
         } tapif_user;                                                  \
         uint8_t pvt_pad[4];                                            \
     } private;                                                         \
-    uint8_t pad[44];                                                   \
+    uint8_t __pad[44];                                                 \
     union __name##_sring_entry ring[1]; /* variable-length */          \
 };                                                                     \
                                                                        \
@@ -121,7 +121,8 @@ struct __name##_back_ring {                                 
        \
 #define SHARED_RING_INIT(_s) do {                                      \
     (_s)->req_prod  = (_s)->rsp_prod  = 0;                             \
     (_s)->req_event = (_s)->rsp_event = 1;                             \
-    memset((_s)->pad, 0, sizeof((_s)->pad));                           \
+    memset((_s)->private.pvt_pad, 0, sizeof((_s)->private.pvt_pad));   \
+    memset((_s)->__pad, 0, sizeof((_s)->__pad));                       \
 } while(0)
 
 #define FRONT_RING_INIT(_r, _s, __size) do {                           \
-- 
1.5.6.5


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