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authorDavid S. Miller <davem@davemloft.net>2010-08-09 00:45:46 -0700
committerDavid S. Miller <davem@davemloft.net>2010-08-09 00:45:46 -0700
commit4cb6066af9ee58ddba58a63cc77b324ac21add75 (patch)
tree4159489e6d6e3c7160f6dd2103992a163eded1a7 /arch/sparc/Kconfig.debug
parentb11287e8c5b2797b86351f6db0fcd9ff99b20bab (diff)
downloadlinux-4cb6066af9ee58ddba58a63cc77b324ac21add75.tar.gz
sparc: Kill user copy check code.
For whatever reason GCC isn't able to figure things out in the control flow (in particular when min() and max() expressions are involved) on sparc as well as it can on x86. So lots of useless incorrect user copy warnings get spewed and the full-on compile failure mode of the user copy checks were never usable on sparc at all. People can debug these kinds of problems on x86. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/Kconfig.debug')
-rw-r--r--arch/sparc/Kconfig.debug14
1 files changed, 0 insertions, 14 deletions
diff --git a/arch/sparc/Kconfig.debug b/arch/sparc/Kconfig.debug
index 1b4a831565f9..d9a795efbc04 100644
--- a/arch/sparc/Kconfig.debug
+++ b/arch/sparc/Kconfig.debug
@@ -30,18 +30,4 @@ config FRAME_POINTER
depends on MCOUNT
default y
-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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