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    Subject[PATCH v5 1/2] ARM: kprobes: fix UNPREDICTABLE warnings
    From
    GNU as warns twice for this file:
    Warning: using r15 results in unpredictable behaviour

    via the Arm ARM:
    K1.1.1 Overview of the constraints on Armv7 UNPREDICTABLE behaviors

    The term UNPREDICTABLE describes a number of cases where the
    architecture has a feature that software must not use.

    Link: https://github.com/ClangBuiltLinux/linux/issues/1271
    Link: https://reviews.llvm.org/D95586
    Reported-by: kernelci.org bot <bot@kernelci.org>
    Suggested-by: Peter Smith <peter.smith@arm.com>
    Suggested-by: Renato Golin <rengolin@systemcall.eu>
    Suggested-by: David Spickett <david.spickett@linaro.org>
    Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
    ---
    arch/arm/probes/kprobes/test-arm.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/arch/arm/probes/kprobes/test-arm.c b/arch/arm/probes/kprobes/test-arm.c
    index 977369f1aa48..2543106a203e 100644
    --- a/arch/arm/probes/kprobes/test-arm.c
    +++ b/arch/arm/probes/kprobes/test-arm.c
    @@ -166,10 +166,10 @@ void kprobe_arm_test_cases(void)

    /* Data-processing with PC as a target and status registers updated */
    TEST_UNSUPPORTED("movs pc, r1")
    - TEST_UNSUPPORTED("movs pc, r1, lsl r2")
    + TEST_UNSUPPORTED(__inst_arm(0xe1b0f211) " @movs pc, r1, lsl r2")
    TEST_UNSUPPORTED("movs pc, #0x10000")
    TEST_UNSUPPORTED("adds pc, lr, r1")
    - TEST_UNSUPPORTED("adds pc, lr, r1, lsl r2")
    + TEST_UNSUPPORTED(__inst_arm(0xe09ef211) " @adds pc, lr, r1, lsl r2")
    TEST_UNSUPPORTED("adds pc, lr, #4")

    /* Data-processing with SP as target */
    --
    2.30.0.478.g8a0d178c01-goog
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