.checkpatch.conf

#
# Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
#
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# modification, are permitted provided that the following conditions are met:
#
# Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

#
# Configure how the Linux checkpatch script should be invoked in the context of
# the Trusted Firmware source tree.
#

# This is not Linux so don't expect a Linux tree!
--no-tree

# 'Signed-off-by' lines in commit messages are not mandated for TF.
--no-signoff

# This clarifes the lines indications in the report.
#
# E.g.:
# Without this option, we have the following output:
#      #333: FILE: drivers/arm/gic/arm_gic.c:160:
# So we have 2 lines indications (333 and 160), which is confusing.
# We only care about the position in the source file.
#
# With this option, it becomes:
#      drivers/arm/gic/arm_gic.c:160:
--showfile

#
# Ignore the following message types, as they don't necessarily make sense in
# the context of the Trusted Firmware.
#

# COMPLEX_MACRO generates false positives.
--ignore COMPLEX_MACRO

# Commit messages might contain a Gerrit Change-Id.
--ignore GERRIT_CHANGE_ID

# Do not check the format of commit messages, as Github's merge commits do not
# observe it.
--ignore GIT_COMMIT_ID

# FILE_PATH_CHANGES reports this kind of message:
# "added, moved or deleted file(s), does MAINTAINERS need updating?"
# We do not use this MAINTAINERS file process in TF.
--ignore FILE_PATH_CHANGES

# AVOID_EXTERNS reports this kind of messages:
# "externs should be avoided in .c files"
# We don't follow this convention in TF.
--ignore AVOID_EXTERNS

# NEW_TYPEDEFS reports this kind of messages:
# "do not add new typedefs"
# We allow adding new typedefs in TF.
--ignore NEW_TYPEDEFS

# VOLATILE reports this kind of messages:
# "Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt"
# We allow the usage of the volatile keyword in TF.
--ignore VOLATILE