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authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-21 17:56:45 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-21 17:56:45 -0800
commit7bb033829ef3ecfc491c0ed0197966e8f197fbdc (patch)
tree9bf410d9726a351970e83bf5f189b5f10035d6f6 /arch/parisc
parent4a0853bf88c8f56e1c01eda02e6625aed09d55d9 (diff)
parent0f5bf6d0afe4be6e1391908ff2d6dc9730e91550 (diff)
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Merge tag 'rodata-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull rodata updates from Kees Cook: "This renames the (now inaccurate) DEBUG_RODATA and related SET_MODULE_RONX configs to the more sensible STRICT_KERNEL_RWX and STRICT_MODULE_RWX" * tag 'rodata-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
Diffstat (limited to 'arch/parisc')
-rw-r--r--arch/parisc/Kconfig1
-rw-r--r--arch/parisc/Kconfig.debug11
-rw-r--r--arch/parisc/configs/712_defconfig1
-rw-r--r--arch/parisc/configs/c3000_defconfig1
-rw-r--r--arch/parisc/mm/init.c2
5 files changed, 2 insertions, 14 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 3a71f38cdc05..ad294b3fb90b 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -8,6 +8,7 @@ config PARISC
select HAVE_SYSCALL_TRACEPOINTS
select ARCH_WANT_FRAME_POINTERS
select ARCH_HAS_ELF_RANDOMIZE
+ select ARCH_HAS_STRICT_KERNEL_RWX
select RTC_CLASS
select RTC_DRV_GENERIC
select INIT_ALL_POSSIBLE
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 68b7cbd0810a..0d856b94c9b1 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -5,15 +5,4 @@ source "lib/Kconfig.debug"
config TRACE_IRQFLAGS_SUPPORT
def_bool y
-config DEBUG_RODATA
- bool "Write protect kernel read-only data structures"
- depends on DEBUG_KERNEL
- default y
- help
- Mark the kernel read-only data as write-protected in the pagetables,
- in order to catch accidental (and incorrect) writes to such const
- data. This option may have a slight performance impact because a
- portion of the kernel code won't be covered by a TLB anymore.
- If in doubt, say "N".
-
endmenu
diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig
index db8f56bf3883..143d02652792 100644
--- a/arch/parisc/configs/712_defconfig
+++ b/arch/parisc/configs/712_defconfig
@@ -182,7 +182,6 @@ CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_DEBUG_RODATA=y
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_HMAC=y
diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index fb92b8920785..8e8f0e34f817 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -166,7 +166,6 @@ CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
# CONFIG_DEBUG_BUGVERBOSE is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_DEBUG_RODATA=y
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_MD5=m
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index e02ada312be8..a055e5b6b380 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -545,7 +545,7 @@ void free_initmem(void)
}
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
void mark_rodata_ro(void)
{
/* rodata memory was already mapped with KERNEL_RO access rights by