[PATCH 0/2] lib: sbi: Fix stale trap_context/prev_context linking

[Evgeny Voevodin]

LGTM, but please resend with some changes in the descriptions.

Patch 1/2: it clears trap_context and not tmp0 and tmp1, so the
_scratch_init mirroring mentioned is not precise. Also it avoids a
broken trap dump and a sbi_memcpy via scratch->trap_context with no
NULL check, which corrupts memory silently.

Add a Fixes tag, I think this is what gets fixed with this
patch:

      Fixes: 60ffc154c84d ("include: sbi: Add trap_context pointer in struct sbi_scratch")

Reviewed-by: Evgeny Voevodin <evvoevod at tenstorrent.com>

  Thanks,
  Evgeny