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authorzbao <fishbaozi@gmail.com>2015-11-05 14:35:57 +0800
committerZheng Bao <zheng.bao@amd.com>2015-11-20 05:36:48 +0100
commit37450ff5343ffa3326a3f23a8ae7448d48e14e3c (patch)
treecd973e287cf98b752b6052c888bf6ef48f88e770 /util/cbfstool
parentf730e44baaf061e2ab8ea4e21b5b0d60bc681dc3 (diff)
downloadcoreboot-37450ff5343ffa3326a3f23a8ae7448d48e14e3c.tar.xz
cbfstool: Fix build error with clang when comparing enum
If HOSTCC=clang, the -Wtautological-constant-out-of-range-compare is set automaticaaly. That assume the value of type enum is in the defined range. Then testing if a type enum is out of range causes build error. Error: coreboot/util/cbfstool/cbfs_image.c:1387:16: error: comparison of constant 4 with expression of type 'enum vb2_hash_algorithm' is always false [-Werror,-Wtautological-constant-out-of-range-compare] if (hash_type >= CBFS_NUM_SUPPORTED_HASHES) ~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~ 1 error generated. clang version: FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512 Target: x86_64-unknown-freebsd10.2 Thread model: posix Change-Id: I3e1722bf6f9553793a9f0c7f4e790706b6938522 Signed-off-by: zbao <fishbaozi@gmail.com> Reviewed-on: http://review.coreboot.org/12330 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'util/cbfstool')
-rw-r--r--util/cbfstool/cbfs_image.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/util/cbfstool/cbfs_image.c b/util/cbfstool/cbfs_image.c
index 2b250114d0..1cfe90d273 100644
--- a/util/cbfstool/cbfs_image.c
+++ b/util/cbfstool/cbfs_image.c
@@ -1389,7 +1389,9 @@ struct cbfs_file_attribute *cbfs_add_file_attr(struct cbfs_file *header,
int cbfs_add_file_hash(struct cbfs_file *header, struct buffer *buffer,
enum vb2_hash_algorithm hash_type)
{
- if (hash_type >= CBFS_NUM_SUPPORTED_HASHES)
+ uint32_t hash_index = hash_type;
+
+ if (hash_index >= CBFS_NUM_SUPPORTED_HASHES)
return -1;
unsigned hash_size = widths_cbfs_hash[hash_type];