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From: Ingo Molnar <mingo@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Juergen Gross <jgross@suse.com>,
	"H . Peter Anvin" <hpa@zytor.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Borislav Petkov <bp@alien8.de>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH 05/41] x86/alternatives: Rename 'poke_int3_handler()' to 'text_poke_int3_handler()'
Date: Thu, 27 Mar 2025 21:53:18 +0100	[thread overview]
Message-ID: <20250327205355.378659-6-mingo@kernel.org> (raw)
In-Reply-To: <20250327205355.378659-1-mingo@kernel.org>

All related functions in this subsystem already have a
text_poke_int3_ prefix - add it to the trap handler
as well.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/text-patching.h | 2 +-
 arch/x86/kernel/alternative.c        | 2 +-
 arch/x86/kernel/traps.c              | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/include/asm/text-patching.h b/arch/x86/include/asm/text-patching.h
index 944b2aad4351..fbca0bd725b6 100644
--- a/arch/x86/include/asm/text-patching.h
+++ b/arch/x86/include/asm/text-patching.h
@@ -38,7 +38,7 @@ extern void *text_poke_copy(void *addr, const void *opcode, size_t len);
 #define text_poke_copy text_poke_copy
 extern void *text_poke_copy_locked(void *addr, const void *opcode, size_t len, bool core_ok);
 extern void *text_poke_set(void *addr, int c, size_t len);
-extern int poke_int3_handler(struct pt_regs *regs);
+extern int text_poke_int3_handler(struct pt_regs *regs);
 extern void text_poke_int3(void *addr, const void *opcode, size_t len, const void *emulate);
 
 extern void text_poke_queue(void *addr, const void *opcode, size_t len, const void *emulate);
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 661cb6b1fbc3..5d410c97d451 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -2515,7 +2515,7 @@ static __always_inline int patch_cmp(const void *key, const void *elt)
 	return 0;
 }
 
-noinstr int poke_int3_handler(struct pt_regs *regs)
+noinstr int text_poke_int3_handler(struct pt_regs *regs)
 {
 	struct int3_patching_desc *desc;
 	struct text_poke_loc *tp;
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 9f88b8a78e50..b4c7bfb06ea1 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -882,16 +882,16 @@ static void do_int3_user(struct pt_regs *regs)
 DEFINE_IDTENTRY_RAW(exc_int3)
 {
 	/*
-	 * poke_int3_handler() is completely self contained code; it does (and
+	 * text_poke_int3_handler() is completely self contained code; it does (and
 	 * must) *NOT* call out to anything, lest it hits upon yet another
 	 * INT3.
 	 */
-	if (poke_int3_handler(regs))
+	if (text_poke_int3_handler(regs))
 		return;
 
 	/*
 	 * irqentry_enter_from_user_mode() uses static_branch_{,un}likely()
-	 * and therefore can trigger INT3, hence poke_int3_handler() must
+	 * and therefore can trigger INT3, hence text_poke_int3_handler() must
 	 * be done before. If the entry came from kernel mode, then use
 	 * nmi_enter() because the INT3 could have been hit in any context
 	 * including NMI.
-- 
2.45.2


  parent reply	other threads:[~2025-03-27 20:54 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-27 20:53 [PATCH 00/41] Simplify, reorganize and clean up the x86 INT3 based batch-patching code (alternative.c) Ingo Molnar
2025-03-27 20:53 ` [PATCH 01/41] x86/alternatives: Rename 'struct bp_patching_desc' to 'struct int3_patching_desc' Ingo Molnar
2025-03-27 20:53 ` [PATCH 02/41] x86/alternatives: Rename 'bp_refs' to 'int3_refs' Ingo Molnar
2025-03-27 20:53 ` [PATCH 03/41] x86/alternatives: Rename 'text_poke_bp_batch()' to 'text_poke_int3_batch()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 04/41] x86/alternatives: Rename 'text_poke_bp()' to 'text_poke_int3()' Ingo Molnar
2025-03-27 20:53 ` Ingo Molnar [this message]
2025-03-27 20:53 ` [PATCH 06/41] x86/alternatives: Rename 'poking_mm' to 'text_poke_mm' Ingo Molnar
2025-03-27 20:53 ` [PATCH 07/41] x86/alternatives: Rename 'text_poke_addr' to 'text_poke_int3_addr' Ingo Molnar
2025-03-27 20:53 ` [PATCH 08/41] x86/alternatives: Rename 'poking_addr' to 'text_poke_addr' Ingo Molnar
2025-03-27 20:53 ` [PATCH 09/41] x86/alternatives: Rename 'bp_desc' to 'int3_desc' Ingo Molnar
2025-03-27 20:53 ` [PATCH 10/41] x86/alternatives: Remove duplicate 'text_poke_early()' prototype Ingo Molnar
2025-03-27 20:53 ` [PATCH 11/41] x86/alternatives: Update comments in int3_emulate_push() Ingo Molnar
2025-03-27 20:53 ` [PATCH 12/41] x86/alternatives: Remove the confusing, inaccurate & unnecessary 'temp_mm_state_t' abstraction Ingo Molnar
2025-03-27 20:53 ` [PATCH 13/41] x86/alternatives: Rename 'text_poke_flush()' to 'text_poke_int3_flush()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 14/41] x86/alternatives: Rename 'text_poke_finish()' to 'text_poke_int3_finish()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 15/41] x86/alternatives: Rename 'text_poke_queue()' to 'text_poke_int3_queue()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 16/41] x86/alternatives: Rename 'text_poke_loc_init()' to 'text_poke_int3_loc_init()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 17/41] x86/alternatives: Rename 'struct text_poke_loc' to 'struct text_poke_int3_loc' Ingo Molnar
2025-03-27 20:53 ` [PATCH 18/41] x86/alternatives: Rename 'struct int3_patching_desc' to 'struct text_poke_int3_vec' Ingo Molnar
2025-03-27 20:53 ` [PATCH 19/41] x86/alternatives: Rename 'int3_desc' to 'int3_vec' Ingo Molnar
2025-03-27 20:53 ` [PATCH 20/41] x86/alternatives: Add text_mutex) assert to text_poke_int3_flush() Ingo Molnar
2025-03-27 20:53 ` [PATCH 21/41] x86/alternatives: Assert that text_poke_int3_handler() can only ever handle 'tp_vec[]' based requests Ingo Molnar
2025-03-27 20:53 ` [PATCH 22/41] x86/alternatives: Use non-inverted logic instead of 'tp_order_fail()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 23/41] x86/alternatives: Remove the 'addr == NULL means forced-flush' hack from text_poke_int3_finish()/text_poke_int3_flush()/tp_addr_ordered() Ingo Molnar
2025-03-27 20:53 ` [PATCH 24/41] x86/alternatives: Simplify text_poke_int3() by using tp_vec and existing APIs Ingo Molnar
2025-03-27 20:53 ` [PATCH 25/41] x86/alternatives: Assert input parameters in text_poke_int3_batch() Ingo Molnar
2025-03-27 20:53 ` [PATCH 26/41] x86/alternatives: Introduce 'struct text_poke_int3_array' and move tp_vec and tp_vec_nr to it Ingo Molnar
2025-03-27 20:53 ` [PATCH 27/41] x86/alternatives: Remove the tp_vec indirection Ingo Molnar
2025-03-27 20:53 ` [PATCH 28/41] x86/alternatives: Rename 'try_get_desc()' to 'try_get_tp_array()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 29/41] x86/alternatives: Rename 'put_desc()' to 'put_tp_array()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 30/41] x86/alternatives: Simplify try_get_tp_array() Ingo Molnar
2025-03-27 20:53 ` [PATCH 31/41] x86/alternatives: Simplify text_poke_int3_handler() Ingo Molnar
2025-03-27 20:53 ` [PATCH 32/41] x86/alternatives: Simplify text_poke_int3_batch() Ingo Molnar
2025-03-27 20:53 ` [PATCH 33/41] x86/alternatives: Rename 'text_poke_int3_batch()' to 'text_poke_int3_batch_process()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 34/41] x86/alternatives: Rename 'int3_refs' to 'tp_array_refs' Ingo Molnar
2025-03-27 20:53 ` [PATCH 35/41] x86/alternatives: Move the tp_array manipulation into text_poke_int3_loc_init() and rename it to text_poke_int3_loc_add() Ingo Molnar
2025-03-27 20:53 ` [PATCH 36/41] x86/alternatives: Remove the mixed-patching restriction on text_poke_int3() Ingo Molnar
2025-03-27 20:53 ` [PATCH 37/41] x86/alternatives: Rename 'text_poke_int3()' to 'text_poke_int3_now()' Ingo Molnar
2025-03-27 20:53 ` [PATCH 38/41] x86/alternatives: Add documentation for text_poke_int3_queue() Ingo Molnar
2025-03-27 20:53 ` [PATCH 39/41] x86/alternatives: Move tp_array completion from text_poke_int3_finish() and text_poke_int3_flush() to text_poke_int3_batch_process() Ingo Molnar
2025-03-27 20:53 ` [PATCH 40/41] x86/alternatives: Rename 'text_poke_sync()' to 'text_poke_sync_each_cpu()' Ingo Molnar
2025-04-02  4:10   ` H. Peter Anvin
2025-04-03 15:05     ` Ingo Molnar
2025-03-27 20:53 ` [PATCH 41/41] x86/alternatives: Simplify tp_addr_ordered() Ingo Molnar
2025-03-27 22:19 ` [PATCH 00/41] Simplify, reorganize and clean up the x86 INT3 based batch-patching code (alternative.c) Linus Torvalds
2025-03-28 10:10   ` Ingo Molnar
2025-04-01 14:55   ` Peter Zijlstra

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