btrfs-progs: build: add more sparse warning checks

- declarations after statements (style issue)
- bitfields without defined signedness

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/Makefile b/Makefile
index 243701a..b1f3388 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -97,7 +97,7 @@ CHECKER := sparse
 check_defs := .cc-defines.h
 CHECKER_FLAGS := -include $(check_defs) -D__CHECKER__ \
        -D__CHECK_ENDIAN__ -Wbitwise -Wuninitialized -Wshadow -Wundef \
-       -U_FORTIFY_SOURCE
+       -U_FORTIFY_SOURCE -Wdeclaration-after-statement -Wdefault-bitfield-sign
 
 objects = ctree.o disk-io.o kernel-lib/radix-tree.o extent-tree.o print-tree.o \
          root-tree.o dir-item.o file-item.o inode-item.o inode-map.o \