x86/asm/entry/64: Remove thread_struct::usersp
Nothing uses thread_struct::usersp anymore, so remove it. Originally-from: Denys Vlasenko <dvlasenk@redhat.com> Tested-by: NBorislav Petkov <bp@alien8.de> Acked-by: NBorislav Petkov <bp@alien8.de> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kees Cook <keescook@chromium.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Will Drewry <wad@chromium.org> Signed-off-by: NIngo Molnar <mingo@kernel.org>
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