mirror of https://gitee.com/openkylin/linux.git
5cd29b1fd3
clang 11 and future GCC are supporting asm goto with outputs. Use it to implement get_user in order to get better generated code. Note that clang requires to set x in the default branch of __get_user_size_goto() otherwise is compliant about x not being initialised :puzzled: Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/403745b5aaa1b315bb4e8e46c1ba949e77eecec0.1615398265.git.christophe.leroy@csgroup.eu |
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