x86: sanitize Kconfig

Set default n for MEMTEST and MTRR_SANITIZER and fix the help texts.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6958d6b..2642b4b 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -447,7 +447,6 @@ config PARAVIRT_DEBUG
 config MEMTEST
        bool "Memtest"
        depends on X86_64
-       default y
        help
          This option adds a kernel parameter 'memtest', which allows memtest
          to be set.
@@ -455,7 +454,7 @@ config MEMTEST
                memtest=1, mean do 1 test pattern;
                ...
                memtest=4, mean do 4 test patterns.
-         If you are unsure how to answer this question, answer Y.
+         If you are unsure how to answer this question, answer N.
 
 config X86_SUMMIT_NUMA
        def_bool y
@@ -1135,21 +1134,18 @@ config MTRR
          See <file:Documentation/mtrr.txt> for more information.
 
 config MTRR_SANITIZER
-       def_bool y
+       bool
        prompt "MTRR cleanup support"
        depends on MTRR
        help
-         Convert MTRR layout from continuous to discrete, so some X driver
-         could add WB entries.
+         Convert MTRR layout from continuous to discrete, so X drivers can
+         add writeback entries.
 
-         Say N here if you see bootup problems (boot crash, boot hang,
-         spontaneous reboots).
+         Can be disabled with disable_mtrr_cleanup on the kernel command line.
+         The largest mtrr entry size for a continous block can be set with
+         mtrr_chunk_size.
 
-         Could be disabled with disable_mtrr_cleanup. Also mtrr_chunk_size
-         could be used to send largest mtrr entry size for continuous block
-         to hold holes (aka. UC entries)
-
-         If unsure, say Y.
+         If unsure, say N.
 
 config MTRR_SANITIZER_ENABLE_DEFAULT
        int "MTRR cleanup enable value (0-1)"
@@ -1166,7 +1162,7 @@ config MTRR_SANITIZER_SPARE_REG_NR_DEFAULT
        depends on MTRR_SANITIZER
        help
          mtrr cleanup spare entries default, it can be changed via
-         mtrr_spare_reg_nr=
+         mtrr_spare_reg_nr=N on the kernel command line.
 
 config X86_PAT
        bool