linux-kernel - [PATCH 0/9] enabled -Wformat-truncation for clang

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Date: Tue, 26 Mar 2024 23:37:59 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: llvm@...ts.linux.dev
Cc: Arnd Bergmann <arnd@...db.de>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Claudiu Manoil <claudiu.manoil@....com>,
	Vladimir Oltean <vladimir.oltean@....com>,
	Jakub Kicinski <kuba@...nel.org>,
	Saeed Mahameed <saeedm@...dia.com>,
	Leon Romanovsky <leon@...nel.org>,
	Ariel Elior <aelior@...vell.com>,
	Manish Chopra <manishc@...vell.com>,
	Hans de Goede <hdegoede@...hat.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	Maximilian Luz <luzmaximilian@...il.com>,
	Hannes Reinecke <hare@...nel.org>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Helge Deller <deller@....de>,
	Masahiro Yamada <masahiroy@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nicolas Schier <nicolas@...sle.eu>,
	Johannes Berg <johannes@...solutions.net>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Nick Desaulniers <ndesaulniers@...gle.com>,
	Bill Wendling <morbo@...gle.com>,
	Justin Stitt <justinstitt@...gle.com>,
	linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-rdma@...r.kernel.org,
	platform-driver-x86@...r.kernel.org,
	linux-scsi@...r.kernel.org,
	linux-fbdev@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	linux-kbuild@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org,
	alsa-devel@...a-project.org,
	linux-sound@...r.kernel.org
Subject: [PATCH 0/9] enabled -Wformat-truncation for clang

From: Arnd Bergmann <arnd@...db.de>

With randconfig build testing, I found only eight files that produce
warnings with clang when -Wformat-truncation is enabled. This means
we can just turn it on by default rather than only enabling it for
"make W=1".

Unfortunately, gcc produces a lot more warnings when the option
is enabled, so it's not yet possible to turn it on both both
compilers.

I hope that the patches can get picked up by platform maintainers
directly, so the final patch can go in later on.

     Arnd

Arnd Bergmann (9):
  fbdev: shmobile: fix snprintf truncation
  enetc: avoid truncating error message
  qed: avoid truncating work queue length
  mlx5: avoid truncating error message
  surface3_power: avoid format string truncation warning
  Input: IMS: fix printf string overflow
  scsi: mylex: fix sysfs buffer lengths
  ALSA: aoa: avoid false-positive format truncation warning
  kbuild: enable -Wformat-truncation on clang

 drivers/input/misc/ims-pcu.c                  |  4 ++--
 drivers/net/ethernet/freescale/enetc/enetc.c  |  2 +-
 .../ethernet/mellanox/mlx5/core/esw/bridge.c  |  2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c    |  9 ++++---
 drivers/platform/surface/surface3_power.c     |  2 +-
 drivers/scsi/myrb.c                           | 20 ++++++++--------
 drivers/scsi/myrs.c                           | 24 +++++++++----------
 drivers/video/fbdev/sh_mobile_lcdcfb.c        |  2 +-
 scripts/Makefile.extrawarn                    |  2 ++
 sound/aoa/soundbus/i2sbus/core.c              |  2 +-
 10 files changed, 35 insertions(+), 34 deletions(-)

-- 
2.39.2

Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: Claudiu Manoil <claudiu.manoil@....com>
Cc: Vladimir Oltean <vladimir.oltean@....com>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: Saeed Mahameed <saeedm@...dia.com>
Cc: Leon Romanovsky <leon@...nel.org>
Cc: Ariel Elior <aelior@...vell.com>
Cc: Manish Chopra <manishc@...vell.com>
Cc: Hans de Goede <hdegoede@...hat.com>
Cc: "Ilpo Järvinen" <ilpo.jarvinen@...ux.intel.com>
Cc: Maximilian Luz <luzmaximilian@...il.com>
Cc: Hannes Reinecke <hare@...nel.org>
Cc: "Martin K. Petersen" <martin.petersen@...cle.com>
Cc: Helge Deller <deller@....de>
Cc: Masahiro Yamada <masahiroy@...nel.org>
Cc: Nathan Chancellor <nathan@...nel.org>
Cc: Nicolas Schier <nicolas@...sle.eu>
Cc: Johannes Berg <johannes@...solutions.net>
Cc: Jaroslav Kysela <perex@...ex.cz>
Cc: Takashi Iwai <tiwai@...e.com>
Cc: Nick Desaulniers <ndesaulniers@...gle.com>
Cc: Bill Wendling <morbo@...gle.com>
Cc: Justin Stitt <justinstitt@...gle.com>
Cc: linux-input@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Cc: netdev@...r.kernel.org
Cc: linux-rdma@...r.kernel.org
Cc: platform-driver-x86@...r.kernel.org
Cc: linux-scsi@...r.kernel.org
Cc: linux-fbdev@...r.kernel.org
Cc: dri-devel@...ts.freedesktop.org
Cc: linux-kbuild@...r.kernel.org
Cc: linuxppc-dev@...ts.ozlabs.org
Cc: alsa-devel@...a-project.org
Cc: linux-sound@...r.kernel.org
Cc: llvm@...ts.linux.dev