Stephen Boyd
446f24d119
Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS ...
The help text for this config is duplicated across the x86, parisc, and
s390 Kconfig.debug files. Arnd Bergman noted that the help text was
slightly misleading and should be fixed to state that enabling this
option isn't a problem when using pre 4.4 gcc.
To simplify the rewording, consolidate the text into lib/Kconfig.debug
and modify it there to be more explicit about when you should say N to
this config.
Also, make the text a bit more generic by stating that this option
enables compile time checks so we can cover architectures which emit
warnings vs. ones which emit errors. The details of how an
architecture decided to implement the checks isn't as important as the
concept of compile time checking of copy_from_user() calls.
While we're doing this, remove all the copy_from_user_overflow() code
that's duplicated many times and place it into lib/ so that any
architecture supporting this option can get the function for free.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Helge Deller <deller@gmx.de>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30 17:04:09 -07:00
lib/lzo: Update LZO compression to current upstream version
2013-02-20 19:36:01 +01:00
mpilib: use DIV_ROUND_UP and remove unused macros
2013-02-01 16:28:32 +11:00
lib/raid6: build proper files on corresponding arch
2012-12-13 19:51:04 +11:00
decompressors: fix typo "POWERPC"
2013-03-13 15:21:48 -07:00
X.509: Implement simple static OID registry
2012-10-08 13:50:18 +10:30
argv_split(): teach it to handle mutable strings
2013-04-29 18:28:19 -07:00
Nothing all that exciting; a new module-from-fd syscall for those who want
2012-12-19 07:55:08 -08:00
lib: atomic64: Initialize locks statically to fix early users
2012-12-20 13:50:16 -08:00
atomic64_test: simplify the #ifdef for atomic64_dec_if_positive() test
2012-07-30 17:25:16 -07:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
usb/core: use bin2bcd() for bcdDevice in RH
2012-09-10 11:13:16 -07:00
propagate name change to comments in kernel source
2012-12-06 10:39:54 +01:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
btree: catch NULL value before it does harm
2012-06-07 14:43:55 -07:00
taint: add explicit flag to show whether lock dep is still OK.
2013-01-21 17:17:57 +10:30
X.509: Implement simple static OID registry
2012-10-08 13:50:18 +10:30
printk: Provide a wake_up_klogd() off-case
2013-03-22 16:41:20 -07:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
asm-generic headers: Allow yet more arch overrides in checksum.h
2013-02-11 20:00:33 +05:30
lib: Fix multiple definitions of clz_tab
2012-02-02 10:34:23 +11:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
Docs: wording: functions -> algorithm
2011-10-29 21:20:22 +02:00
cpu: rewrite cpu-notifier-error-inject module
2012-07-30 17:25:22 -07:00
lib: cpu_rmap: avoid flushing all workqueues
2013-01-11 14:54:54 -08:00
bootmem: fix wrong call parameter for free_bootmem()
2012-12-11 17:22:28 -08:00
sections: fix const sections for crc32 table
2012-10-06 03:04:46 +09:00
crc32: select an algorithm via Kconfig
2012-03-23 16:58:38 -07:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
hlist: drop the node parameter from iterators
2013-02-27 19:10:24 -08:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
lib/decompress.c add __init to decompress_method and data
2012-10-06 03:05:32 +09:00
decompress_bunzip2: remove invalid vi modeline
2011-12-06 10:00:05 +01:00
treewide: Fix comment and string typo 'bufer'
2011-12-06 09:53:40 +01:00
lib/lzo: Rename lzo1x_decompress.c to lzo1x_decompress_safe.c
2013-02-20 19:36:00 +01:00
lib/devres.c: fix misplaced #endif
2013-02-27 19:10:09 -08:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2013-02-21 08:18:12 -08:00
math64: New div64_u64_rem helper
2013-03-13 18:03:27 +01:00
dma-debug: update DMA debug API to better handle multiple mappings of a buffer
2013-03-22 16:41:20 -07:00
dump_stack: consolidate dump_stack() implementations and unify their behaviors
2013-04-30 17:04:02 -07:00
dynamic_debug: reuse generic string_unescape function
2013-04-30 17:04:03 -07:00
bql: Avoid possible inconsistent calculation.
2012-05-31 18:18:17 -04:00
lib: Add early cpio decoder
2012-09-30 18:02:20 -07:00
lib/: rename random32() to prandom_u32()
2013-04-29 18:28:42 -07:00
of/lib: Allow scripts/dtc/libfdt to be used from kernel code
2012-07-23 13:54:52 +01:00
of/lib: Allow scripts/dtc/libfdt to be used from kernel code
2012-07-23 13:54:52 +01:00
of/lib: Allow scripts/dtc/libfdt to be used from kernel code
2012-07-23 13:54:52 +01:00
of/lib: Allow scripts/dtc/libfdt to be used from kernel code
2012-07-23 13:54:52 +01:00
of/lib: Allow scripts/dtc/libfdt to be used from kernel code
2012-07-23 13:54:52 +01:00
of/lib: Allow scripts/dtc/libfdt to be used from kernel code
2012-07-23 13:54:52 +01:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
lib/flex_proportions.c: fix corruption of denominator in flexible proportions
2012-09-25 08:59:21 -07:00
lib/gcd.c: prevent possible div by 0
2012-10-06 03:04:57 +09:00
sections: fix const sections for crc32 table
2012-10-06 03:04:46 +09:00
genalloc: add devres support, allow to find a managed pool by device
2013-04-29 18:28:13 -07:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
dynamic_debug: dynamic hex dump
2013-01-17 12:19:09 -08:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
idr: introduce idr_alloc_cyclic()
2013-04-29 18:28:41 -07:00
lib/int_sqrt.c: optimize square root algorithm
2013-04-29 18:28:19 -07:00
mm: interval tree updates
2012-10-09 16:22:40 +09:00
random32: rename random32 to prandom
2012-12-17 17:15:26 -08:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
The following text was taken from the original review request:
2012-03-24 10:24:31 -07:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
ddr: add LPDDR2 data from JESD209-2
2012-05-02 00:04:06 -07:00
lib/kasprintf.c: use kmalloc_track_caller() to get accurate traces for kvasprintf
2012-10-11 08:50:15 +09:00
Move utf16 functions to kernel core and rename
2013-04-15 21:23:03 +01:00
Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
2013-04-30 17:04:09 -07:00
KGDB/KDB fixes and cleanups
2013-03-02 08:31:39 -08:00
kfifo: fix kfifo_alloc() and kfifo_init()
2013-02-27 19:10:23 -08:00
Revert "driver core: check start node in klist_iter_init_node"
2012-04-19 19:17:30 -07:00
kobject: fix kset_find_obj() race with concurrent last kobject_put()
2013-04-13 15:15:30 -07:00
netlink: hide struct module parameter in netlink_kernel_create
2012-09-08 18:46:30 -04:00
kstrto*: add documentation
2012-12-17 17:15:22 -08:00
lib/kstrtox: common code between kstrto*() and simple_strto*() functions
2011-10-31 17:30:56 -07:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
rcu: Fix broken strings in RCU's source code.
2012-07-06 06:01:49 -07:00
lib/: rename random32() to prandom_u32()
2013-04-29 18:28:42 -07:00
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
lockdep: Selftest: convert spinlock to raw spinlock
2013-02-19 08:43:35 +01:00
hlist: drop the node parameter from iterators
2013-02-27 19:10:24 -08:00
Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
2013-04-30 17:04:09 -07:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
memory: memory notifier error injection module
2012-07-30 17:25:22 -07:00
string: introduce memweight()
2012-07-30 17:25:16 -07:00
netlink: add minlen validation for the new signed types
2012-08-30 13:11:46 -04:00
fault-injection: notifier error injection
2012-07-30 17:25:22 -07:00
fault-injection: notifier error injection
2012-07-30 17:25:22 -07:00
powerpc+of: Rename and fix OF reconfig notifier error inject module
2012-12-14 10:32:52 +11:00
X.509: Add utility functions to render OIDs as strings
2012-10-08 13:50:18 +10:30
lib/parser.c: fix up comments for valid return values from match_number
2013-02-21 17:22:25 -08:00
lib: add NO_GENERIC_PCI_IOPORT_MAP
2012-01-31 23:19:47 +02:00
percpu_rw_semaphore: add lockdep annotations
2012-12-17 17:15:18 -08:00
switch the protection of percpu_counter list to spinlock
2012-07-31 09:28:31 +04:00
lib/plist.c: make plist test announcements KERN_DEBUG
2012-10-06 03:04:58 +09:00
PM: PM notifier error injection module
2012-07-30 17:25:22 -07:00
locking, lib/proportions: Annotate prop_local_percpu::lock as raw
2011-09-13 11:11:50 +02:00
radix-tree: fix contiguous iterator
2012-06-05 10:46:40 -07:00
prandom: introduce prandom_bytes() and prandom_bytes_state()
2012-12-17 17:15:26 -08:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
lib: Change mail address of Oskar Schirmer
2012-05-17 15:18:37 +02:00
lib/rbtree.c: avoid the use of non-static __always_inline
2013-01-11 14:54:56 -08:00
rbtree_test: add __init/__exit annotations
2013-04-30 17:04:07 -07:00
sch_red: Adaptative RED AQM
2011-12-08 19:52:43 -05:00
rwsem-spinlock: Implement writer lock-stealing for better scalability
2013-02-19 08:43:39 +01:00
rwsem: Implement writer lock-stealing for better scalability
2013-02-19 08:42:43 +01:00
lib/scatterlist: use page iterator in the mapping iterator
2013-02-27 19:10:10 -08:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
mm, show_mem: suppress page counts in non-blockable contexts
2013-04-29 15:54:28 -07:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
lib/spinlock_debug: avoid livelock in do_raw_spin_lock()
2012-10-06 03:04:57 +09:00
lib: add support for stmp-style devices
2012-04-20 23:27:08 +02:00
The following text was taken from the original review request:
2012-03-24 10:24:31 -07:00
lib/string_helpers: introduce generic string_unescape
2013-04-30 17:04:03 -07:00
word-at-a-time: make the interfaces truly generic
2012-05-26 11:33:40 -07:00
lib: Fix generic strnlen_user for 32-bit big-endian machines
2012-05-27 20:59:46 -07:00
x86, kdump: Set crashkernel_low automatically
2013-04-17 12:35:32 -07:00
lib: reduce the use of module.h wherever possible
2012-03-07 15:04:04 -05:00
lib/test-kstrtox.c: mark const init data with __initconst instead of __initdata
2012-05-29 16:22:32 -07:00
lib/string_helpers: introduce generic string_unescape
2013-04-30 17:04:03 -07:00
The following text was taken from the original review request:
2012-03-24 10:24:31 -07:00
Move utf16 functions to kernel core and rename
2013-04-15 21:23:03 +01:00
Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
2013-04-30 17:04:09 -07:00
uuid: use prandom_bytes()
2013-04-29 18:28:42 -07:00
lib/vsprintf.c: add %pa format specifier for phys_addr_t types
2013-02-21 17:22:20 -08:00
446f24d119