Re: [PATCH v2 9/9] kselftest/arm64: Add 2024 dpISA extensions to hwcap test

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On 10/30/24 09:34, Mark Brown wrote:
We don't actually test SIGILL generation for CMPBR since the need to
branch makes it a pain to generate and the SIGILL detection would be
unreliable anyway. Since this should be very unusual we provide a stub
function rather than supporting a missing function.

The sigill functions aren't well sorted in the file so the ordering is a
bit random.
This is talking about the one that isn't implemented. Can you add
a sentence or two about the ones that this patch adds?


Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
  tools/testing/selftests/arm64/abi/hwcap.c | 273 +++++++++++++++++++++++++++++-
  1 file changed, 271 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c
index f2d6007a2b983eba77a880ec7e614396a6cb1377..beb380bc09b0d07269a85a60e5d2977367740473 100644
--- a/tools/testing/selftests/arm64/abi/hwcap.c
+++ b/tools/testing/selftests/arm64/abi/hwcap.c
@@ -46,6 +46,12 @@ static void atomics_sigill(void)
  	asm volatile(".inst 0xb82003ff" : : : );
  }
+static void cmpbr_sigill(void)
+{
+	/* Not implemented, too complicated and unreliable anyway */
+}
+

You anticpated "not used" messages looks like. I see that
this gets called - thanks.

Looks good to me. With the change to change log

Reviewed-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>

thanks,
-- Shuah




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