linux/scripts/coccinelle/misc, branch v5.10

coccinelle: misc: add flexible_array.cocci script

2020-10-03T20:08:40Z

One-element and zero-length arrays are deprecated [1]. Kernel code should always use "flexible array members" instead, except for existing uapi definitions. The script warns about one-element and zero-length arrays in structs. [1] commit 68e4cd17e218 ("docs: deprecated.rst: Add zero-length and one-element arrays") Cc: Kees Cook Cc: Gustavo A. R. Silva Signed-off-by: Denis Efremov Signed-off-by: Julia Lawall

coccinelle: misc: add excluded_middle.cocci script

2020-09-21T17:45:46Z

Check for !A || A && B condition. It's equivalent to !A || B. Signed-off-by: Denis Efremov Signed-off-by: Julia Lawall

coccinelle: misc: add uninitialized_var.cocci script

2020-09-05T17:13:28Z

uninitialized_var() macro was removed from the sources [1] and other warning-silencing tricks were deprecated [2]. The purpose of this cocci script is to prevent new occurrences of uninitialized_var() open-coded variants. [1] commit 63a0895d960a ("compiler: Remove uninitialized_var() macro") [2] commit 4b19bec97c88 ("docs: deprecated.rst: Add uninitialized_var()") Cc: Kees Cook Cc: Gustavo A. R. Silva Signed-off-by: Denis Efremov Signed-off-by: Julia Lawall

Merge branch 'for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux

2020-08-06T18:34:35Z

Pull coccinelle updates from Julia Lawall: "New semantic patches and semantic patch improvements from Denis Efremov" * 'for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux: coccinelle: api: filter out memdup_user definitions coccinelle: api: extend memdup_user rule with vmemdup_user() coccinelle: api: extend memdup_user transformation with GFP_USER coccinelle: api: add kzfree script coccinelle: misc: add array_size_dup script to detect missed overflow checks coccinelle: api/kstrdup: fix coccinelle position coccinelle: api: add device_attr_show script

coccinelle: misc: add array_size_dup script to detect missed overflow checks

2020-08-04T20:46:58Z

Detect an opencoded expression that is used before or after array_size()/array3_size()/struct_size() to compute the same size. Signed-off-by: Denis Efremov Signed-off-by: Julia Lawall

scripts: add dummy report mode to add_namespace.cocci

2020-07-10T12:19:58Z

When running `make coccicheck` in report mode using the add_namespace.cocci file, it will fail for files that contain MODULE_LICENSE. Those match the replacement precondition, but spatch errors out as virtual.ns is not set. In order to fix that, add the virtual rule nsdeps and only do search and replace if that rule has been explicitly requested. In order to make spatch happy in report mode, we also need a dummy rule, as otherwise it errors out with "No rules apply". Using a script:python rule appears unrelated and odd, but this is the shortest I could come up with. Adjust scripts/nsdeps accordingly to set the nsdeps rule when run trough `make nsdeps`. Suggested-by: Julia Lawall Fixes: c7c4e29fb5a4 ("scripts: add_namespace: Fix coccicheck failed") Cc: YueHaibing Cc: jeyu@kernel.org Cc: cocci@systeme.lip6.fr Cc: stable@vger.kernel.org Signed-off-by: Matthias Maennich Reported-by: Shuah Khan Acked-by: Julia Lawall Link: https://lore.kernel.org/r/20200604164145.173925-1-maennich@google.com Signed-off-by: Greg Kroah-Hartman

net: remove newlines in NL_SET_ERR_MSG_MOD

2020-05-08T00:56:14Z

The NL_SET_ERR_MSG_MOD macro is used to report a string describing an error message to userspace via the netlink extended ACK structure. It should not have a trailing newline. Add a cocci script which catches cases where the newline marker is present. Using this script, fix the handful of cases which accidentally included a trailing new line. I couldn't figure out a way to get a patch mode working, so this script only implements context, report, and org. Signed-off-by: Jacob Keller Cc: Jakub Kicinski Cc: Andy Whitcroft Cc: Joe Perches Signed-off-by: David S. Miller

scripts: add_namespace: Fix coccicheck failed

2019-10-07T14:37:53Z

Now all scripts in scripts/coccinelle to be automatically called by coccicheck. However new adding add_namespace.cocci does not support report mode, which make coccicheck failed. This add "virtual report" to make the coccicheck go ahead smoothly. Fixes: eb8305aecb95 ("scripts: Coccinelle script for namespace dependencies.") Acked-by: Julia Lawall Acked-by: Matthias Maennich Signed-off-by: YueHaibing Signed-off-by: Jessica Yu

scripts: Coccinelle script for namespace dependencies.

2019-09-10T08:30:43Z

A script that uses the '.ns_deps' files generated by modpost to automatically add the required symbol namespace dependencies to each module. Usage: 1) Move some symbols to a namespace with EXPORT_SYMBOL_NS() or define DEFAULT_SYMBOL_NAMESPACE 2) Run 'make' (or 'make modules') and get warnings about modules not importing that namespace. 3) Run 'make nsdeps' to automatically add required import statements to said modules. This makes it easer for subsystem maintainers to introduce and maintain symbol namespaces into their codebase. Co-developed-by: Martijn Coenen Signed-off-by: Martijn Coenen Acked-by: Julia Lawall Reviewed-by: Greg Kroah-Hartman Signed-off-by: Matthias Maennich Signed-off-by: Jessica Yu

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505

2019-06-19T15:11:22Z

Based on 1 normalized pattern(s): gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 58 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081207.556988620@linutronix.de Signed-off-by: Greg Kroah-Hartman