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f688979e42
[ Upstream commit3c3a24cb0a] This patch adds the helper crypto_clone_tfm. The purpose is to allocate a tfm object with GFP_ATOMIC. As we cannot sleep, the object has to be cloned from an existing tfm object. This allows code paths that cannot otherwise allocate a crypto_tfm object to do so. Once a new tfm has been obtained its key could then be changed without impacting other users. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Stable-dep-of:1465036b10("llc: Improve setsockopt() handling of malformed user input") Signed-off-by: Sasha Levin <sashal@kernel.org>