linux/include
Arnd Bergmann fbc416ff86 arm64: fix building without CONFIG_UID16
As reported by Michal Simek, building an ARM64 kernel with CONFIG_UID16
disabled currently fails because the system call table still needs to
reference the individual function entry points that are provided by
kernel/sys_ni.c in this case, and the declarations are hidden inside
of #ifdef CONFIG_UID16:

arch/arm64/include/asm/unistd32.h:57:8: error: 'sys_lchown16' undeclared here (not in a function)
 __SYSCALL(__NR_lchown, sys_lchown16)

I believe this problem only exists on ARM64, because older architectures
tend to not need declarations when their system call table is built
in assembly code, while newer architectures tend to not need UID16
support. ARM64 only uses these system calls for compatibility with
32-bit ARM binaries.

This changes the CONFIG_UID16 check into CONFIG_HAVE_UID16, which is
set unconditionally on ARM64 with CONFIG_COMPAT, so we see the
declarations whenever we need them, but otherwise the behavior is
unchanged.

Fixes: af1839eb4b ("Kconfig: clean up the long arch list for the UID16 config option")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2015-11-25 15:49:13 +00:00
..
acpi
asm-generic h8300 update for v4.4 2015-11-12 15:26:39 -08:00
clocksource
crypto
drm drm/atomic: add a drm_atomic_clean_old_fb helper. 2015-11-17 13:02:14 +02:00
dt-bindings ARM: DT updates for v4.4 2015-11-10 15:06:26 -08:00
keys
kvm
linux arm64: fix building without CONFIG_UID16 2015-11-25 15:49:13 +00:00
math-emu
media
memory
misc
net net: switchdev: fix return code of fdb_dump stub 2015-11-16 15:24:37 -05:00
pcmcia
ras
rdma
rxrpc
scsi scsi: use host wide tags by default 2015-11-09 17:11:57 -08:00
soc ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
sound
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-11-13 20:04:17 -08:00
trace Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2015-11-11 09:03:01 -08:00
uapi VFIO updates for v4.4-rc1 2015-11-13 17:05:32 -08:00
video
xen
Kbuild