Matthew Wilcox 3fc2579e6f fls: change parameter to unsigned int ...

When testing in userspace, UBSAN pointed out that shifting into the sign
bit is undefined behaviour.  It doesn't really make sense to ask for the
highest set bit of a negative value, so just turn the argument type into
an unsigned int.

Some architectures (eg ppc) already had it declared as an unsigned int,
so I don't expect too many problems.

Link: http://lkml.kernel.org/r/20181105221117.31828-1-willy@infradead.org
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2019-01-04 13:13:46 -08:00

..

alpha

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

arc

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

arm

Merge tag 'kgdb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

2019-01-01 15:38:14 -08:00

arm64

Merge tag 'kgdb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

2019-01-01 15:38:14 -08:00

c6x

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

csky

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

h8300

Merge tag 'kgdb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

2019-01-01 15:38:14 -08:00

hexagon

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

ia64

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

m68k

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

microblaze

Merge tag 'kgdb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

2019-01-01 15:38:14 -08:00

mips

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

nds32

Merge tag 'nds32-for-linus-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux

2018-12-29 09:37:03 -08:00

nios2

Merge tag 'kgdb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

2019-01-01 15:38:14 -08:00

openrisc

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

parisc

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

powerpc

Merge tag 'iommu-updates-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

2019-01-01 15:55:29 -08:00

riscv

Merge tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2018-12-29 13:40:29 -08:00

s390

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

sh

Merge tag 'kgdb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

2019-01-01 15:38:14 -08:00

sparc

Merge tag 'kgdb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

2019-01-01 15:38:14 -08:00

um

Merge branch 'for-linus-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

2019-01-02 18:39:22 -08:00

unicore32

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

x86

fls: change parameter to unsigned int

2019-01-04 13:13:46 -08:00

xtensa

Merge tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2018-12-29 13:40:29 -08:00

.gitignore

…

Kconfig

…