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H A D | Makefile | diff 92ef432f Thu Nov 23 02:05:40 MST 2023 Masahiro Yamada <masahiroy@kernel.org> kbuild: support W=c and W=e shorthands for Kconfig KCONFIG_WARN_UNKNOWN_SYMBOLS=1 and KCONFIG_WERROR=1 are descriptive and suitable in scripting, but typing them from the command line can be tedious. Associate them with KBUILD_EXTRA_WARN (and the W= shorthand). Support a new letter 'c' to enable extra checks in Kconfig. You can still manage compiler warnings (W=1) and Kconfig warnings (W=c) independently. Reuse the letter 'e' to turn Kconfig warnings into errors. As usual, you can combine multiple letters in KCONFIG_EXTRA_WARN. $ KCONFIG_WARN_UNKNOWN_SYMBOLS=1 KCONFIG_WERROR=1 make defconfig can be shortened to: $ KBUILD_EXTRA_WARN=ce make defconfig or, even shorter: $ make W=ce defconfig Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org> diff 92bf2261 Sun Feb 07 14:57:38 MST 2021 Linus Torvalds <torvalds@linux-foundation.org> Linux 5.11-rc7 diff 92bf2261 Sun Feb 07 14:57:38 MST 2021 Linus Torvalds <torvalds@linux-foundation.org> Linux 5.11-rc7 diff 92ed3019 Sun Jul 26 15:14:06 MDT 2020 Linus Torvalds <torvalds@linux-foundation.org> Linux 5.8-rc7 diff 92d21ac7 Sun Jul 10 21:24:59 MDT 2016 Linus Torvalds <torvalds@linux-foundation.org> Linux 4.7-rc7 diff c9c6837d Tue May 10 15:30:01 MDT 2016 Arnd Bergmann <arnd@arndb.de> kbuild: move -Wunused-const-variable to W=1 warning level gcc-6 started warning by default about variables that are not used anywhere and that are marked 'const', generating many false positives in an allmodconfig build, e.g.: arch/arm/mach-davinci/board-da830-evm.c:282:20: warning: 'da830_evm_emif25_pins' defined but not used [-Wunused-const-variable=] arch/arm/plat-omap/dmtimer.c:958:34: warning: 'omap_timer_match' defined but not used [-Wunused-const-variable=] drivers/bluetooth/hci_bcm.c:625:39: warning: 'acpi_bcm_default_gpios' defined but not used [-Wunused-const-variable=] drivers/char/hw_random/omap-rng.c:92:18: warning: 'reg_map_omap4' defined but not used [-Wunused-const-variable=] drivers/devfreq/exynos/exynos5_bus.c:381:32: warning: 'exynos5_busfreq_int_pm' defined but not used [-Wunused-const-variable=] drivers/dma/mv_xor.c:1139:34: warning: 'mv_xor_dt_ids' defined but not used [-Wunused-const-variable=] This is similar to the existing -Wunused-but-set-variable warning that was added in an earlier release and that we disable by default now and only enable when W=1 is set, so it makes sense to do the same here. Once we have eliminated the majority of the warnings for both, we can put them back into the default list. We probably want this in backport kernels as well, to allow building them with gcc-6 without introducing extra warnings. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Lee Jones <lee.jones@linaro.org> Cc: stable@vger.kernel.org Signed-off-by: Michal Marek <mmarek@suse.com> diff b9ab5ebb Sun Feb 28 21:22:42 MST 2016 Josh Poimboeuf <jpoimboe@redhat.com> objtool: Add CONFIG_STACK_VALIDATION option Add a CONFIG_STACK_VALIDATION option which will run "objtool check" for each .o file to ensure the validity of its stack metadata. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Bernd Petrovitsch <bernd@petrovitsch.priv.at> Cc: Borislav Petkov <bp@alien8.de> Cc: Chris J Arges <chris.j.arges@canonical.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Pedro Alves <palves@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/92baab69a6bf9bc7043af0bfca9fb964a1d45546.1456719558.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> diff 92e963f5 Sun Jan 24 14:06:47 MST 2016 Linus Torvalds <torvalds@linux-foundation.org> Linux 4.5-rc1 diff 92dcffb9 Thu Jan 21 16:31:35 MST 2010 Linus Torvalds <torvalds@linux-foundation.org> Linux 2.6.33-rc5 diff 92bf2261 Sun Feb 07 14:57:38 MST 2021 Linus Torvalds <torvalds@linux-foundation.org> Linux 5.11-rc7 diff 92bf2261 Sun Feb 07 14:57:38 MST 2021 Linus Torvalds <torvalds@linux-foundation.org> Linux 5.11-rc7 |
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