Merge tag 'flex-array-transformations-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull flexible-array updates from Gustavo Silva:
 "Transform zero-length arrays, in unions, into flexible arrays"

* tag 'flex-array-transformations-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
  bcache: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper
  mm/memremap: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
  exportfs: Replace zero-length array with DECLARE_FLEX_ARRAY() helper

Author: torvalds

drivers/md/bcache/bcache_ondisk.h

@@ -360,8 +360,8 @@ struct jset {
 	__u64			prio_bucket[MAX_CACHES_PER_SET];
 
 	union {
-		struct bkey	start[0];
-		__u64		d[0];
+		DECLARE_FLEX_ARRAY(struct bkey, start);
+		DECLARE_FLEX_ARRAY(__u64, d);
 	};
 };
 
@@ -425,8 +425,8 @@ struct bset {
 	__u32			keys;
 
 	union {
-		struct bkey	start[0];
-		__u64		d[0];
+		DECLARE_FLEX_ARRAY(struct bkey, start);
+		DECLARE_FLEX_ARRAY(__u64, d);
 	};
 };
 

include/linux/exportfs.h

@@ -131,7 +131,7 @@ struct fid {
  			u32 parent_block;
  			u32 parent_generation;
  		} udf;
-		__u32 raw[0];
+		DECLARE_FLEX_ARRAY(__u32, raw);
 	};
 };
 

include/linux/memremap.h

@@ -135,7 +135,7 @@ struct dev_pagemap {
 	int nr_range;
 	union {
 		struct range range;
-		struct range ranges[0];
+		DECLARE_FLEX_ARRAY(struct range, ranges);
 	};
 };