Add the possibility to pass options for checkpatch

It can be handy for example to add --strict option which can detect more
coding issues, even if not mandated by TF-A coding rules.
To use it:
 CHECKPATCH_OPTS="--strict" make checkpatch

Change-Id: I707e4cc2d1250b21f18ff16169b5f1e5ab03a7ed
Signed-off-by: Yann Gautier <yann.gautier@st.com>

diff --git a/Makefile b/Makefile
index 6386befd1aba3c252df493c1356501e2459ebd0f..c6d42106d83f6db578db7c5fdd53ef87713b2f40 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -841,13 +841,18 @@ checkcodebase:            locate-checkpatch
 
 checkpatch:            locate-checkpatch
        @echo "  CHECKING STYLE"
+       @if test -n "${CHECKPATCH_OPTS}"; then                          \
+               echo "    with ${CHECKPATCH_OPTS} option(s)";           \
+       fi
        ${Q}COMMON_COMMIT=$$(git merge-base HEAD ${BASE_COMMIT});       \
        for commit in `git rev-list $$COMMON_COMMIT..HEAD`; do          \
                printf "\n[*] Checking style of '$$commit'\n\n";        \
                git log --format=email "$$commit~..$$commit"            \
-                       -- ${CHECK_PATHS} | ${CHECKPATCH} - || true;    \
+                       -- ${CHECK_PATHS} |                             \
+                       ${CHECKPATCH} ${CHECKPATCH_OPTS} - || true;     \
                git diff --format=email "$$commit~..$$commit"           \
-                       -- ${CHECK_PATHS} | ${CHECKPATCH} - || true;    \
+                       -- ${CHECK_PATHS} |                             \
+                       ${CHECKPATCH}  ${CHECKPATCH_OPTS} - || true;    \
        done
 
 certtool: ${CRTTOOL}