Merge branches 'x86-alternatives-for-linus', 'x86-fpu-for-linus', 'x86-hwmon-for...

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / s390 / Kconfig.debug

diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index 45e0c6199f36d6484df7adc657527c02c7974a4e..05221b13ffb1ed746b4a276a06ad0b9bfca95364 100644 (file)
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -6,6 +6,18 @@ config TRACE_IRQFLAGS_SUPPORT
 
 source "lib/Kconfig.debug"
 
+config STRICT_DEVMEM
+       def_bool y
+       prompt "Filter access to /dev/mem"
+       ---help---
+         This option restricts access to /dev/mem.  If this option is
+         disabled, you allow userspace access to all memory, including
+         kernel and userspace memory. Accidental memory access is likely
+         to be disastrous.
+         Memory access is required for experts who want to debug the kernel.
+
+         If you are unsure, say Y.
+
 config DEBUG_STRICT_USER_COPY_CHECKS
        bool "Strict user copy size checks"
        ---help---