qblist: Retype ptr in qb_list_entry to char* (#385)

This allows pointer arithmetics without issuing warning. Signed-off-by: Jan Friesse <[email protected]>
ClusterLabs · Feb 26, 2020 · 9249caf · 9249caf
1 parent f54d150
commit 9249caf
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diff --git a/configure.ac b/configure.ac
@@ -601,6 +601,7 @@ WARNLIST="
 	suggest-attribute=format
 	property-attribute-mismatch
 	strict-prototypes
+	pointer-arith
 	write-strings
 	cast-align
 	bad-function-cast

diff --git a/include/qb/qblist.h b/include/qb/qblist.h
@@ -195,7 +195,7 @@ static inline void qb_list_splice_tail(struct qb_list_head *list,
  * @param member:	the name of the list_struct within the struct.
  */
 #define qb_list_entry(ptr,type,member) ({	       \
-	((type *)((void*)ptr - offsetof(type, member))); })
+	((type *)((char*)ptr - offsetof(type, member))); })
 
 /**
  * Get the first element from a list