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    SubjectRe: [PATCH v2] hex2bin: make the function hex_to_bin constant-time
    On Wed, May 04, 2022 at 04:57:35AM -0400, Mikulas Patocka wrote:
    > On Wed, 4 May 2022, Stafford Horne wrote:
    > > On Mon, Apr 25, 2022 at 08:07:48AM -0400, Mikulas Patocka wrote:


    > > Just a heads up it seems this patch is causing some instability with crypto self
    > > tests on OpenRISC when using a PREEMPT kernel (no SMP).
    > >
    > > This was reported by Jason A. Donenfeld as it came up in wireguard testing.
    > >
    > > I am trying to figure out if this is an OpenRISC PREEMPT issue or something
    > > else.

    > That patch is so simple that I can't imagine how could it break the
    > curve25519 test. Are you sure that you bisected it correctly?

    Can you provide a test cases for hex_to_bin()?

    With Best Regards,
    Andy Shevchenko

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