devtools: ignore SPDX warning of checkpatch

Since DPDK developers have decided to use a different tag format
than the kernel developers, ignore warnings about SPDX tags.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/devtools/checkpatches.sh b/devtools/checkpatches.sh
index 245d5ab..663b7c4 100755 (executable)
--- a/devtools/checkpatches.sh
+++ b/devtools/checkpatches.sh
@@ -14,7 +14,7 @@ options="--no-tree"
 options="$options --max-line-length=$length"
 options="$options --show-types"
 options="$options --ignore=LINUX_VERSION_CODE,\
-FILE_PATH_CHANGES,MAINTAINERS_STYLE,\
+FILE_PATH_CHANGES,MAINTAINERS_STYLE,SPDX_LICENSE_TAG,\
 VOLATILE,PREFER_PACKED,PREFER_ALIGNED,PREFER_PRINTF,\
 PREFER_KERNEL_TYPES,BIT_MACRO,CONST_STRUCT,\
 SPLIT_STRING,LONG_LINE_STRING,\