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Michael Ellerman authored
Based on the x86 commit doing the same. See commit 304ec1b0 ("x86/uaccess: Use __uaccess_begin_nospec() and uaccess_try_nospec") and b3bbfb3f ("x86: Introduce __uaccess_begin_nospec() and uaccess_try_nospec") for more detail. In all cases we are ordering the load from the potentially user-controlled pointer vs a previous branch based on an access_ok() check or similar. Base on a patch from Michal Suchanek. Signed-off-by:
Michal Suchanek <msuchanek@suse.de> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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