Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> writes: > 5.10-stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Christophe Leroy <christophe.leroy@xxxxxxxxxx> > > [ Upstream commit 5cd29b1fd3e8f2b45fe6d011588d832417defe31 ] > > 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@xxxxxxxxxx> > Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> > Link: https://lore.kernel.org/r/403745b5aaa1b315bb4e8e46c1ba949e77eecec0.1615398265.git.christophe.leroy@xxxxxxxxxx > Stable-dep-of: 50934945d542 ("powerpc/uaccess: Use YZ asm constraint for ld") > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> > --- > arch/powerpc/include/asm/uaccess.h | 55 ++++++++++++++++++++++++++++++ > 1 file changed, 55 insertions(+) This is causing a build break. Please drop it. There have been a lot of changes to uaccess.h since v5.10. I think rather than trying to pull in enough of them to allow backporting the recent uaccess fixes it'd be better to do a custom backport. I'll send one once I've done some build tests. cheers
