[Spice-devel] [PATCH spice-server] stat-file: Use proper macro for container computation

[Frediano Ziglio]

This is currently more style patch as the "value" field is the
first field of SpiceStatNode structure, so has offset 0. However
to compute the containing structure it better to use the proper
macro to avoid confusion.
If the offset won't be 0 the subtraction would compute the
wrong pointer as the offset is expressed in bytes but the
element size are uint64_t.

Signed-off-by: Frediano Ziglio <fziglio at redhat.com>
---
 server/stat-file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/stat-file.c b/server/stat-file.c
index 4228be310..38c393389 100644
--- a/server/stat-file.c
+++ b/server/stat-file.c
@@ -233,6 +233,6 @@ void stat_file_remove_node(RedStatFile *stat_file, StatNodeRef ref)
 
 void stat_file_remove_counter(RedStatFile *stat_file, uint64_t *counter)
 {
-    stat_file_remove(stat_file, (SpiceStatNode *)(counter - SPICE_OFFSETOF(SpiceStatNode, value)));
+    stat_file_remove(stat_file, SPICE_CONTAINEROF(counter, SpiceStatNode, value));
 }
 #endif
-- 
2.20.1