microblaze: cpuinfo shows cache line length

[~andy/linux] / arch / parisc / Kconfig.debug

diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index bc989e522a045c17ca4514478b7cb5ef9d77fc4d..7305ac8f7f5ba7438ac2207ada7aaeb60b419d36 100644 (file)
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -12,4 +12,18 @@ config DEBUG_RODATA
          portion of the kernel code won't be covered by a TLB anymore.
          If in doubt, say "N".
 
+config DEBUG_STRICT_USER_COPY_CHECKS
+       bool "Strict copy size checks"
+       depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
+       ---help---
+         Enabling this option turns a certain set of sanity checks for user
+         copy operations into compile time failures.
+
+         The copy_from_user() etc checks are there to help test if there
+         are sufficient security checks on the length argument of
+         the copy operation, by having gcc prove that the argument is
+         within bounds.
+
+         If unsure, or if you run an older (pre 4.4) gcc, say N.
+
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