linux-toradex.git/include/linux/uaccess.h, branch v4.14-rc5 Linux kernel for Apalis and Colibri modules <linux/uaccess.h>: Fix copy_in_user() declaration 2017-08-31T21:32:39+00:00 Bart Van Assche bart.vanassche@wdc.com 2017-08-23T22:29:10+00:00 f58e76c1c551c7577b25a6fe493d82f5214331b7 copy_in_user() copies data from user-space address @from to user- space address @to. Hence declare both @from and @to as user-space pointers. Fixes: commit d597580d3737 ("generic ...copy_..._user primitives") Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: <stable@vger.kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
copy_in_user() copies data from user-space address @from to user-
space address @to. Hence declare both @from and @to as user-space
pointers.

Fixes: commit d597580d3737 ("generic ...copy_..._user primitives")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Merge branch 'work.__copy_in_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-08T17:15:02+00:00 Linus Torvalds torvalds@linux-foundation.org 2017-07-08T17:15:02+00:00 46ace66b3b34c80341c6290cd608aae4d2de9879 Pull __copy_in_user removal from Al Viro: "There used to be 6 places in the entire tree calling __copy_in_user(), all of them bogus. Four got killed off in work.drm branch, this takes care of the remaining ones and kills the definition of that sucker" * 'work.__copy_in_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: kill __copy_in_user() sanitize do_i2c_smbus_ioctl() 
Pull __copy_in_user removal from Al Viro:
 "There used to be 6 places in the entire tree calling __copy_in_user(),
  all of them bogus.

  Four got killed off in work.drm branch, this takes care of the
  remaining ones and kills the definition of that sucker"

* 'work.__copy_in_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  kill __copy_in_user()
  sanitize do_i2c_smbus_ioctl()
kill __copy_in_user() 2017-07-04T17:31:27+00:00 Al Viro viro@zeniv.linux.org.uk 2017-05-25T20:28:49+00:00 119d0312c766773ca3238b9d926077664eed22be no users left Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
no users left

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
copy_{to,from}_user(): consolidate object size checks 2017-06-30T02:21:21+00:00 Al Viro viro@zeniv.linux.org.uk 2017-06-30T01:42:43+00:00 b0377fedb6528087ed319b0d054d6ed82240372c ... and move them into thread_info.h, next to check_object_size() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
... and move them into thread_info.h, next to check_object_size()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
copy_{from,to}_user(): move kasan checks and might_fault() out-of-line 2017-06-30T02:21:20+00:00 Al Viro viro@zeniv.linux.org.uk 2017-06-30T01:39:54+00:00 9c5f6908de03a4f52ba7364b11fcd6116225480c Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
include/linux/uaccess.h: remove expensive WARN_ON in pagefault_disabled_dec 2017-05-09T00:15:14+00:00 Andi Kleen ak@linux.intel.com 2017-05-08T22:58:56+00:00 f44a2920c84af809883ecbbd08d47fb5fe47c8ad pagefault_disabled_dec is frequently used inline, and it has a WARN_ON for underflow that expands to about 6.5k of extra code. The warning doesn't seem to be that useful and worth so much code so remove it. If it was needed could make it depending on some debug kernel option. Saves ~6.5k in my kernel text data bss dec hex filename 9039417 5367568 11116544 25523529 1857549 vmlinux-before-pf 9032805 5367568 11116544 25516917 1855b75 vmlinux-pf Link: http://lkml.kernel.org/r/20170315021431.13107-8-andi@firstfloor.org Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
pagefault_disabled_dec is frequently used inline, and it has a WARN_ON
for underflow that expands to about 6.5k of extra code.  The warning
doesn't seem to be that useful and worth so much code so remove it.

If it was needed could make it depending on some debug kernel option.

Saves ~6.5k in my kernel

     text    data     bss     dec     hex filename
  9039417 5367568 11116544        25523529        1857549 vmlinux-before-pf
  9032805 5367568 11116544        25516917        1855b75 vmlinux-pf

Link: http://lkml.kernel.org/r/20170315021431.13107-8-andi@firstfloor.org
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
CONFIG_ARCH_HAS_RAW_COPY_USER is unconditional now 2017-04-26T16:11:01+00:00 Al Viro viro@zeniv.linux.org.uk 2017-04-05T23:15:53+00:00 701cac61d0250912b89cbc28589969530179099a all architectures converted Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
all architectures converted

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
kill __copy_from_user_nocache() 2017-03-28T22:24:05+00:00 Al Viro viro@zeniv.linux.org.uk 2017-03-25T22:47:28+00:00 3f763453e6f27d82fa0ac58f8e1ac4094c1fb1f8 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
generic ...copy_..._user primitives 2017-03-28T22:22:11+00:00 Al Viro viro@zeniv.linux.org.uk 2017-03-21T01:56:06+00:00 d597580d373774b1bdab84b3d26ff0b55162b916 provide raw_copy_..._user() and select ARCH_HAS_RAW_COPY_USER to use those. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
provide raw_copy_..._user() and select ARCH_HAS_RAW_COPY_USER to use those.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
new helper: uaccess_kernel() 2017-03-28T20:43:25+00:00 Al Viro viro@zeniv.linux.org.uk 2017-03-21T01:08:07+00:00 db68ce10c4f0a27c1ff9fa0e789e5c41f8c4ea63 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>