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ARCv2: Check for LL-SC livelock only if LLSC is enabled

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commit 4d0cb15fccd1db9dac0c964b2ccf10874e69f5b8 upstream.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vineet Gupta 2016-01-29 16:47:44 +05:30 committed by Greg Kroah-Hartman
parent 9c458a8668
commit f06a5a019b
1 changed files with 1 additions and 0 deletions
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arch/arc/kernel/setup.c
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@ -334,6 +334,7 @@ static void arc_chk_core_config(void)
panic("FPU non-existent, disable CONFIG_ARC_FPU_SAVE_RESTORE\n");
if (is_isa_arcv2() && IS_ENABLED(CONFIG_SMP) && cpu->isa.atomic &&
IS_ENABLED(CONFIG_ARC_HAS_LLSC) &&
!IS_ENABLED(CONFIG_ARC_STAR_9000923308))
panic("llock/scond livelock workaround missing\n");
}