From 0cc16b8d1da61c0bfb8743c8b68888b0ba73d4bb Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Wed, 15 Mar 2023 21:38:56 -0600
Subject: btrfsprim: Add "max" constants for ObjID, ItemType, and offset

---
 lib/btrfs/Makefile | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'lib/btrfs/Makefile')

diff --git a/lib/btrfs/Makefile b/lib/btrfs/Makefile
index b98a1b7..2c70363 100644
--- a/lib/btrfs/Makefile
+++ b/lib/btrfs/Makefile
@@ -74,10 +74,15 @@ btrfsprim/itemtype.go: btrfsitem/items.txt $(MAKEFILE_LIST)
 	  echo '// Code generated by Make.  DO NOT EDIT.'; \
 	  echo; \
 	  echo 'package $(@D)'; \
-	  echo 'import "fmt"'; \
+	  echo 'import ('; \
+	  echo '  "fmt"'; \
+	  echo '  "math"'; \
+	  echo ')'; \
 	  echo 'type ItemType uint8'; \
 	  echo 'const ('; \
 	  sed -E 's,(.*)=([^:]*)(:.*)? (trivial|complex) (.*),\1_KEY ItemType=\2,' $< | uniq; \
+	  echo; \
+	  echo 'MAX_KEY ItemType = math.MaxUint8'; \
 	  echo ')'; \
 	  echo 'func (t ItemType) String() string {'; \
 	  echo '  switch t {'; \
-- 
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