Christophe Leroy 6f3a81b600 powerpc/code-patching: Remove protection against patching init addresses after init ...

Once init section is freed, attempting to patch init code
ends up in the weed.

Commit 51c3c62b58 ("powerpc: Avoid code patching freed init sections")
protected patch_instruction() against that, but it is the responsibility
of the caller to ensure that the patched memory is valid.

All callers have now been verified and fixed so the check
can be removed.

This improves ftrace activation by about 2% on 8xx.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/504310828f473d424e2ed229eff57bf075f52796.1669969781.git.christophe.leroy@csgroup.eu

2022-12-02 21:59:57 +11:00

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