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From: Andi Kleen <andi@firstfloor.org>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 6/6] x86/idt: Make const __initconst
Date: Thu, 21 Dec 2017 16:18:21 -0800	[thread overview]
Message-ID: <20171222001821.2157-7-andi@firstfloor.org> (raw)
In-Reply-To: <20171222001821.2157-1-andi@firstfloor.org>

From: Andi Kleen <ak@linux.intel.com>

const variables must use __initconst, not __initdata. Fix this up
for the new IDT tables recently added, which got it consistently wrong.

Fixes a whole range of commits between
16bc18d895ce x86/idt: Move 32-bit idt_descr to C code
and
dc20b2d52653 x86/idt: Move interrupt gate initialization to IDT code

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
 arch/x86/kernel/idt.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c
index d985cef3984f..56d99be3706a 100644
--- a/arch/x86/kernel/idt.c
+++ b/arch/x86/kernel/idt.c
@@ -56,7 +56,7 @@ struct idt_data {
  * Early traps running on the DEFAULT_STACK because the other interrupt
  * stacks work only after cpu_init().
  */
-static const __initdata struct idt_data early_idts[] = {
+static const __initconst struct idt_data early_idts[] = {
 	INTG(X86_TRAP_DB,		debug),
 	SYSG(X86_TRAP_BP,		int3),
 #ifdef CONFIG_X86_32
@@ -70,7 +70,7 @@ static const __initdata struct idt_data early_idts[] = {
  * the traps which use them are reinitialized with IST after cpu_init() has
  * set up TSS.
  */
-static const __initdata struct idt_data def_idts[] = {
+static const __initconst struct idt_data def_idts[] = {
 	INTG(X86_TRAP_DE,		divide_error),
 	INTG(X86_TRAP_NMI,		nmi),
 	INTG(X86_TRAP_BR,		bounds),
@@ -108,7 +108,7 @@ static const __initdata struct idt_data def_idts[] = {
 /*
  * The APIC and SMP idt entries
  */
-static const __initdata struct idt_data apic_idts[] = {
+static const __initconst struct idt_data apic_idts[] = {
 #ifdef CONFIG_SMP
 	INTG(RESCHEDULE_VECTOR,		reschedule_interrupt),
 	INTG(CALL_FUNCTION_VECTOR,	call_function_interrupt),
@@ -150,7 +150,7 @@ static const __initdata struct idt_data apic_idts[] = {
  * Early traps running on the DEFAULT_STACK because the other interrupt
  * stacks work only after cpu_init().
  */
-static const __initdata struct idt_data early_pf_idts[] = {
+static const __initconst struct idt_data early_pf_idts[] = {
 	INTG(X86_TRAP_PF,		page_fault),
 };
 
@@ -158,7 +158,7 @@ static const __initdata struct idt_data early_pf_idts[] = {
  * Override for the debug_idt. Same as the default, but with interrupt
  * stack set to DEFAULT_STACK (0). Required for NMI trap handling.
  */
-static const __initdata struct idt_data dbg_idts[] = {
+static const __initconst struct idt_data dbg_idts[] = {
 	INTG(X86_TRAP_DB,	debug),
 	INTG(X86_TRAP_BP,	int3),
 };
@@ -180,7 +180,7 @@ gate_desc debug_idt_table[IDT_ENTRIES] __page_aligned_bss;
  * The exceptions which use Interrupt stacks. They are setup after
  * cpu_init() when the TSS has been initialized.
  */
-static const __initdata struct idt_data ist_idts[] = {
+static const __initconst struct idt_data ist_idts[] = {
 	ISTG(X86_TRAP_DB,	debug,		DEBUG_STACK),
 	ISTG(X86_TRAP_NMI,	nmi,		NMI_STACK),
 	SISTG(X86_TRAP_BP,	int3,		DEBUG_STACK),
-- 
2.15.0

  parent reply	other threads:[~2017-12-22  0:27 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-22  0:18 x86 cleanups from the LTO tree Andi Kleen
2017-12-22  0:18 ` [PATCH 1/6] x86/timer: Don't inline __const_udelay Andi Kleen
2018-01-14 19:10   ` [tip:x86/cleanups] " tip-bot for Andi Kleen
2018-01-14 19:16     ` Joe Perches
2017-12-22  0:18 ` [PATCH 2/6] x86/xen: Mark pv stub assembler symbol visible Andi Kleen
2018-01-14 18:14   ` Thomas Gleixner
2018-01-15 17:17   ` Boris Ostrovsky
2017-12-22  0:18 ` [PATCH 3/6] locking/spinlocks: Mark spinlocks noinline when inline spinlocks are disabled Andi Kleen
2018-01-14 18:13   ` Thomas Gleixner
2017-12-22  0:18 ` [PATCH 4/6] x86/kvm: Make steal_time visible Andi Kleen
2018-01-14 18:14   ` Thomas Gleixner
2017-12-22  0:18 ` [PATCH 5/6] x86: Make exception handler functions visible Andi Kleen
2018-01-14 19:10   ` [tip:x86/cleanups] x86/extable: Mark " tip-bot for Andi Kleen
2017-12-22  0:18 ` Andi Kleen [this message]
2018-01-14 19:12   ` [tip:x86/urgent] x86/idt: Mark IDT tables __initconst tip-bot for Andi Kleen

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