linux-kernel - [PATCH 10/28] uprobes.h: move declarations to uprobes

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Message-Id: <20240131145008.1345531-11-max.kellermann@ionos.com>
Date: Wed, 31 Jan 2024 15:49:50 +0100
From: Max Kellermann <max.kellermann@...os.com>
To: linux-kernel@...r.kernel.org
Cc: Max Kellermann <max.kellermann@...os.com>
Subject: [PATCH 10/28] uprobes.h: move declarations to uprobes_types.h

By providing declarations in a lean header, we can reduce header
dependencies.

Signed-off-by: Max Kellermann <max.kellermann@...os.com>
---
 arch/arm64/kernel/signal.c    |  1 +
 include/linux/mm_types.h      |  2 +-
 include/linux/uprobes.h       | 10 +---------
 include/linux/uprobes_types.h | 25 +++++++++++++++++++++++++
 kernel/entry/common.c         |  1 +
 kernel/trace/bpf_trace.c      |  1 +
 mm/memory.c                   |  1 +
 7 files changed, 31 insertions(+), 10 deletions(-)
 create mode 100644 include/linux/uprobes_types.h

diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
index 0e8beb3349ea..8990975d0c37 100644
--- a/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@ -14,6 +14,7 @@
 #include <linux/freezer.h>
 #include <linux/stddef.h>
 #include <linux/uaccess.h>
+#include <linux/uprobes.h>
 #include <linux/sizes.h>
 #include <linux/string.h>
 #include <linux/resume_user_mode.h>
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 6ee90f81e01d..88bbb724080f 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -12,7 +12,7 @@
 #include <linux/maple_tree_types.h>
 #include <linux/rwsem_types.h>
 #include <linux/cpumask.h>
-#include <linux/uprobes.h>
+#include <linux/uprobes_types.h>
 #include <linux/rcupdate.h>
 #include <linux/page-flags-layout.h>
 #include <linux/workqueue_types.h>
diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h
index a76155cf8ceb..6ab950cce8a9 100644
--- a/include/linux/uprobes.h
+++ b/include/linux/uprobes.h
@@ -11,6 +11,7 @@
  * Copyright (C) 2011-2012 Red Hat, Inc., Peter Zijlstra
  */
 
+#include <linux/uprobes_types.h>
 #include <linux/errno.h>
 #include <linux/types.h>
 
@@ -94,12 +95,6 @@ enum rp_check {
 	RP_CHECK_RET,
 };
 
-struct xol_area;
-
-struct uprobes_state {
-	struct xol_area		*xol_area;
-};
-
 extern void __init uprobes_init(void);
 extern int set_swbp(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr);
 extern int set_orig_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr);
@@ -137,9 +132,6 @@ extern bool arch_uprobe_ignore(struct arch_uprobe *aup, struct pt_regs *regs);
 extern void arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr,
 					 void *src, unsigned long len);
 #else /* !CONFIG_UPROBES */
-struct uprobes_state {
-};
-
 static inline void uprobes_init(void)
 {
 }
diff --git a/include/linux/uprobes_types.h b/include/linux/uprobes_types.h
new file mode 100644
index 000000000000..0ce0fe3801ea
--- /dev/null
+++ b/include/linux/uprobes_types.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _LINUX_UPROBES_TYPES_H
+#define _LINUX_UPROBES_TYPES_H
+/*
+ * User-space Probes (UProbes)
+ *
+ * Copyright (C) IBM Corporation, 2008-2012
+ * Authors:
+ *	Srikar Dronamraju
+ *	Jim Keniston
+ * Copyright (C) 2011-2012 Red Hat, Inc., Peter Zijlstra
+ */
+
+#ifdef CONFIG_UPROBES
+
+struct xol_area;
+
+struct uprobes_state {
+	struct xol_area		*xol_area;
+};
+#else /* !CONFIG_UPROBES */
+struct uprobes_state {
+};
+#endif /* !CONFIG_UPROBES */
+#endif	/* _LINUX_UPROBES_TYPES_H */
diff --git a/kernel/entry/common.c b/kernel/entry/common.c
index 88cb3c88aaa5..364ea38c868e 100644
--- a/kernel/entry/common.c
+++ b/kernel/entry/common.c
@@ -9,6 +9,7 @@
 #include <linux/livepatch.h>
 #include <linux/audit.h>
 #include <linux/tick.h>
+#include <linux/uprobes.h>
 
 #include "common.h"
 
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index 64fdaf79d113..1f314e6461e5 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -11,6 +11,7 @@
 #include <linux/btf.h>
 #include <linux/filter.h>
 #include <linux/uaccess.h>
+#include <linux/uprobes.h>
 #include <linux/ctype.h>
 #include <linux/kprobes.h>
 #include <linux/spinlock.h>
diff --git a/mm/memory.c b/mm/memory.c
index 8d14ba440929..909a98b3d142 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -70,6 +70,7 @@
 #include <linux/string.h>
 #include <linux/memory-tiers.h>
 #include <linux/debugfs.h>
+#include <linux/uprobes.h>
 #include <linux/userfaultfd_k.h>
 #include <linux/dax.h>
 #include <linux/oom.h>
-- 
2.39.2