When CONFIG_KASAN is enabled, we have several functions that use rather
large kernel stacks, e.g.
drivers/isdn/hardware/eicon/message.c: In function 'group_optimization':
drivers/isdn/hardware/eicon/message.c:14841:1: warning: the frame size of 864
bytes is larger than 500 bytes [-Wframe-larger-than=]
drivers/isdn/hardware/eicon/message.c: In function 'add_b1':
drivers/isdn/hardware/eicon/message.c:7925:1: warning: the frame size of 1008
bytes is larger than 500 bytes [-Wframe-larger-than=]
drivers/isdn/hardware/eicon/message.c: In function 'add_b23':
drivers/isdn/hardware/eicon/message.c:8551:1: warning: the frame size of 928
bytes is larger than 500 bytes [-Wframe-larger-than=]
drivers/isdn/hardware/eicon/message.c: In function 'sig_ind':
drivers/isdn/hardware/eicon/message.c:6113:1: warning: the frame size of 2112
bytes is larger than 500 bytes [-Wframe-larger-than=]
To be on the safe side, and to enable a lower frame size warning limit, let's
just mark this driver as broken when KASAN is in use. I have tried to reduce
the stack size as I did with dozens of other drivers, but failed to come up
with a good solution for this one.
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
drivers/isdn/hardware/eicon/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/isdn/hardware/eicon/Kconfig
b/drivers/isdn/hardware/eicon/Kconfig
index 6082b6a5ced3..b64496062421 100644
--- a/drivers/isdn/hardware/eicon/Kconfig
+++ b/drivers/isdn/hardware/eicon/Kconfig
@@ -31,6 +31,7 @@ config ISDN_DIVAS_PRIPCI
config ISDN_DIVAS_DIVACAPI
tristate "DIVA CAPI2.0 interface support"
+ depends on !KASAN || BROKEN
help
You need this to provide the CAPI interface
for DIVA Server cards.
--
2.9.0
