From: mark.rutland@arm.com (Mark Rutland)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv2 01/11] arm64: thread_info remove stale items
Date: Thu, 3 Nov 2016 20:23:03 +0000 [thread overview]
Message-ID: <1478204593-29145-2-git-send-email-mark.rutland@arm.com> (raw)
In-Reply-To: <1478204593-29145-1-git-send-email-mark.rutland@arm.com>
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: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
---
arch/arm64/include/asm/thread_info.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h
index e9ea5a6..76a9559 100644
--- a/arch/arm64/include/asm/thread_info.h
+++ b/arch/arm64/include/asm/thread_info.h
@@ -42,7 +42,6 @@ typedef unsigned long mm_segment_t;
/*
* low level task data that entry.S needs immediate access to.
- * __switch_to() assumes cpu_context follows immediately after cpu_domain.
*/
struct thread_info {
unsigned long flags; /* low level flags */
@@ -60,7 +59,6 @@ struct thread_info {
.addr_limit = KERNEL_DS, \
}
-#define init_thread_info (init_thread_union.thread_info)
#define init_stack (init_thread_union.stack)
/*
--
2.7.4
next prev parent reply other threads:[~2016-11-03 20:23 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-03 20:23 [PATCHv2 00/11] arm64: move thread_info off of the task stack Mark Rutland
2016-11-03 20:23 ` Mark Rutland [this message]
2016-11-03 20:23 ` [PATCHv2 02/11] arm64: asm-offsets: remove unused definitions Mark Rutland
2016-11-03 20:23 ` [PATCHv2 03/11] arm64: factor out current_stack_pointer Mark Rutland
2016-11-03 20:23 ` [PATCHv2 04/11] arm64: traps: simplify die() and __die() Mark Rutland
2016-11-03 20:23 ` [PATCHv2 05/11] arm64: unexport walk_stackframe Mark Rutland
2016-11-03 20:23 ` [PATCHv2 06/11] arm64: prep stack walkers for THREAD_INFO_IN_TASK Mark Rutland
2016-11-03 20:23 ` [PATCHv2 07/11] arm64: move sp_el0 and tpidr_el1 into cpu_suspend_ctx Mark Rutland
2016-11-03 20:23 ` [PATCHv2 08/11] arm64: smp: prepare for smp_processor_id() rework Mark Rutland
2016-11-03 20:23 ` [PATCHv2 09/11] arm64: make cpu number a percpu variable Mark Rutland
2016-11-03 20:23 ` [PATCHv2 10/11] arm64: assembler: introduce ldr_this_cpu Mark Rutland
2016-11-03 20:23 ` [PATCHv2 11/11] arm64: split thread_info from task stack Mark Rutland
2016-11-14 17:50 ` [PATCHv2 00/11] arm64: move thread_info off of the " Catalin Marinas
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