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BACKPORT: Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled

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[ Upstream commit 152fe65f300e1819d59b80477d3e0999b4d5d7d2 ]

When enabled, KASAN enlarges function's stack-frames.  Pushing quite a few
over the current threshold.  This can mainly be seen on 32-bit
architectures where the present limit (when !GCC) is a lowly 1024-Bytes.

Bug: 261962742
Link: https://lkml.kernel.org/r/20221125120750.3537134-3-lee@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@gmail.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Tom Rix <trix@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Change-Id: I505a5187220b426fe49c0f15bf1704198082f63d
Signed-off-by: Lee Jones <joneslee@google.com>
This commit is contained in:
Lee Jones 2022-11-25 12:07:50 +00:00 committed by Lee Jones
parent 20fb10aa4c
commit 0ce03d1655
1 changed files with 1 additions and 0 deletions
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lib/Kconfig.debug
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@ -266,6 +266,7 @@ config FRAME_WARN
int "Warn for stack frames larger than (needs gcc 4.4)" int "Warn for stack frames larger than (needs gcc 4.4)"
range 0 8192 range 0 8192
default 2048 if GCC_PLUGIN_LATENT_ENTROPY default 2048 if GCC_PLUGIN_LATENT_ENTROPY
default 1280 if KASAN && !64BIT
default 1280 if (!64BIT && PARISC) default 1280 if (!64BIT && PARISC)
default 1024 if (!64BIT && !PARISC) default 1024 if (!64BIT && !PARISC)
default 2048 if 64BIT default 2048 if 64BIT