[PATCHv2 1/3] ARM: Clear IDIVT hwcap if CONFIG_ARM_THUMB=n

Stephen Boyd
2013-03-18T18:29:04Z

Don't advertise support for the SDIV/UDIV thumb instructions if
the kernel is not compiled with support for thumb userspace. This
is in line with how we remove the THUMB hwcap in these
configurations.

Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
arch/arm/kernel/setup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 3f6cbb2..e2c8bbf 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -484,7 +484,7 @@ static void __init setup_processor(void)
list->elf_name, ENDIANNESS);
elf_hwcap = list->elf_hwcap;
#ifndef CONFIG_ARM_THUMB
- elf_hwcap &= ~HWCAP_THUMB;
+ elf_hwcap &= ~(HWCAP_THUMB | HWCAP_IDIVT);
#endif

feat_v6_fixup();