Merge branch 'linus' into tracing/mmiotrace

1 files changed, 12 insertions, 8 deletions

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 1e53df0ba08c..f7169edfbeab 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -6,15 +6,19 @@ config TRACE_IRQFLAGS_SUPPORT
 source "lib/Kconfig.debug"
 
 config NONPROMISC_DEVMEM
-        bool "Disable promiscuous /dev/mem"
+        bool "Filter access to /dev/mem"
         help
-          The /dev/mem file by default only allows userspace access to PCI
-          space and the BIOS code and data regions. This is sufficient for
-          dosemu and X and all common users of /dev/mem. With this config
-          option, you allow userspace access to all of memory, including
-          kernel and userspace memory. Accidental access to this is
-          obviously disasterous, but specific access can be used by people
-          debugging the kernel.
+          If this option is left off, you allow userspace access to all
+          of memory, including kernel and userspace memory. Accidental
+          access to this is obviously disastrous, but specific access can
+          be used by people debugging the kernel.
+
+          If this option is switched on, the /dev/mem file only allows
+          userspace access to PCI space and the BIOS code and data regions.
+          This is sufficient for dosemu and X and all common users of
+          /dev/mem.
+
+          If in doubt, say Y.
 
 config EARLY_PRINTK
         bool "Early printk" if EMBEDDED