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authorMichal Marek <mmarek@suse.cz>2010-08-04 13:59:13 +0200
committerMichal Marek <mmarek@suse.cz>2010-08-04 13:59:13 +0200
commit772320e84588dcbe1600ffb83e5f328f2209ac2a (patch)
treea7de21b79340aeaa17c58126f6b801b82c77b53a /arch/s390/Kconfig.debug
parentmodpost: support objects with more than 64k sections (diff)
parentLinux 2.6.35 (diff)
downloadlinux-772320e84588dcbe1600ffb83e5f328f2209ac2a.tar.xz
linux-772320e84588dcbe1600ffb83e5f328f2209ac2a.zip
Merge commit 'v2.6.35' into kbuild/kbuild
Conflicts: arch/powerpc/Makefile
Diffstat (limited to 'arch/s390/Kconfig.debug')
-rw-r--r--arch/s390/Kconfig.debug13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index 2283933a9a93..45e0c6199f36 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -6,4 +6,17 @@ config TRACE_IRQFLAGS_SUPPORT
source "lib/Kconfig.debug"
+config DEBUG_STRICT_USER_COPY_CHECKS
+ bool "Strict user copy size checks"
+ ---help---
+ Enabling this option turns a certain set of sanity checks for user
+ copy operations into compile time warnings.
+
+ 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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