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

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.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Cc: Alex Deucher <[email protected]>
Cc: "Christian König" <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Harry Wentland <[email protected]>
Cc: Leo Li <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: "Pan, Xinhui" <[email protected]>
Cc: Rodrigo Siqueira <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Cc: Tom Rix <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index a1005415f0f485db8eaf02842eedaa98f889ac1f..580e453e284efc66c1a31ab31932ea0e035b3f28 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -399,6 +399,7 @@ config FRAME_WARN
        default 2048 if GCC_PLUGIN_LATENT_ENTROPY
        default 2048 if PARISC
        default 1536 if (!64BIT && XTENSA)
+       default 1280 if KASAN && !64BIT
        default 1024 if !64BIT
        default 2048 if 64BIT
        help