UPSTREAM: arm64: thread_info remove stale items
We have a comment claiming __switch_to() cares about where cpu_context is located relative to cpu_domain in thread_info. However arm64 has never had a thread_info::cpu_domain field, and neither __switch_to nor cpu_switch_to care where the cpu_context field is relative to others. Additionally, the init_thread_info alias is never used anywhere in the kernel, and will shortly become problematic when thread_info is moved into task_struct. This patch removes both. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Tested-by: Laura Abbott <labbott@redhat.com> Cc: James Morse <james.morse@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Bug: 38331309 Change-Id: Ia4769ddcc6fc556e9eb6193d64fc99fe2d9e39ab (cherry picked from commit dcbe02855f048fdf1e13ebc697e83c8d297f9f5a) Signed-off-by: Zubin Mithra <zsm@google.com>
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@ -42,7 +42,6 @@ typedef unsigned long mm_segment_t;
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/*
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* low level task data that entry.S needs immediate access to.
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* __switch_to() assumes cpu_context follows immediately after cpu_domain.
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*/
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struct thread_info {
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unsigned long flags; /* low level flags */
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@ -63,7 +62,6 @@ struct thread_info {
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.addr_limit = KERNEL_DS, \
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}
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#define init_thread_info (init_thread_union.thread_info)
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#define init_stack (init_thread_union.stack)
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/*
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