aboutsummaryrefslogtreecommitdiff
path: root/drivers/thermal/mtk_thermal.c
diff options
context:
space:
mode:
authorArd Biesheuvel2021-04-06 16:25:23 +0200
committerHerbert Xu2021-04-16 21:16:31 +1000
commit0f19dbc994dcb7f7137f2e056e813c84530b7538 (patch)
tree09fd47a0abf110bc3e8e4521f515c657b4c9f544 /drivers/thermal/mtk_thermal.c
parent7ed83901326f781524af2d969185440efe23f964 (diff)
crypto: arm64/aes-ce - deal with oversight in new CTR carry code
The new carry handling code in the CTR driver can deal with a carry occurring in the 4x/5x parallel code path, by using a computed goto to jump into the carry sequence at the right place as to only apply the carry to a subset of the blocks being processed. If the lower half of the counter wraps and ends up at exactly 0x0, a carry needs to be applied to the counter, but not to the counter values taken for the 4x/5x parallel sequence. In this case, the computed goto skips all register assignments, and branches straight to the jump instruction that gets us back to the fast path. This produces the correct result, but due to the fact that this branch target does not carry the correct BTI annotation, this fails when BTI is enabled. Let's omit the computed goto entirely in this case, and jump straight back to the fast path after applying the carry to the main counter. Fixes: 5318d3db465d ("crypto: arm64/aes-ctr - improve tail handling") Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/thermal/mtk_thermal.c')
0 files changed, 0 insertions, 0 deletions