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x86: Add insn_decode_kernel()

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This was done by commit 52fa82c21f64e900a72437269a5cc9e0034b424e
upstream, but this backport avoids changing all callers of the
old decoder API.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ben Hutchings
2022-07-11 00:43:31 +02:00
committed by Greg Kroah-Hartman
parent d9cd219114
commit 9a6471666b
3 changed files with 5 additions and 1 deletions
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2
arch/x86/kernel/alternative.c
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@@ -1290,7 +1290,7 @@ static void text_poke_loc_init(struct text_poke_loc *tp, void *addr,
if (!emulate)
emulate = opcode;
ret = insn_decode(&insn, emulate, MAX_INSN_SIZE, INSN_MODE_KERN);
ret = insn_decode_kernel(&insn, emulate);
BUG_ON(ret < 0);
BUG_ON(len != insn.length);