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[ Upstream commiteeb9f34df0] CONFIG_CPU_SRSO isn't dependent on CONFIG_CPU_UNRET_ENTRY (AMD Retbleed), so the two features are independently configurable. Fix several issues for the (presumably rare) case where CONFIG_CPU_SRSO is enabled but CONFIG_CPU_UNRET_ENTRY isn't. Fixes:fb3bd914b3("x86/srso: Add a Speculative RAS Overflow mitigation") Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Acked-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/r/299fb7740174d0f2335e91c58af0e9c242b4bac1.1693889988.git.jpoimboe@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org>