hexagon: Remove unusable symbols from the ptrace.h uapi

Kernel-internal prototypes, references to current_thread_info()
and code hidden behind a CONFIG_HEXAGON_ARCH_VERSION switch are
certainly not usable in userspace, so this should not reside
in a uapi header. Move the code into an internal version of
ptrace.h instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/hexagon/include/asm/ptrace.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Ptrace definitions for the Hexagon architecture
+ *
+ * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _ASM_HEXAGON_PTRACE_H
+#define _ASM_HEXAGON_PTRACE_H
+
+#include <uapi/asm/ptrace.h>
+
+/* kprobe-based event tracer support */
+extern int regs_query_register_offset(const char *name);
+extern const char *regs_query_register_name(unsigned int offset);
+
+#define current_pt_regs() \
+	((struct pt_regs *) \
+	 ((unsigned long)current_thread_info() + THREAD_SIZE) - 1)
+
+#if CONFIG_HEXAGON_ARCH_VERSION >= 4
+#define arch_has_single_step()	(1)
+#endif
+
+#endif

arch/hexagon/include/uapi/asm/ptrace.h

@@ -29,17 +29,4 @@
 
 #define profile_pc(regs) instruction_pointer(regs)
 
-/* kprobe-based event tracer support */
-extern int regs_query_register_offset(const char *name);
-extern const char *regs_query_register_name(unsigned int offset);
-
-#define current_pt_regs() \
-	((struct pt_regs *) \
-	 ((unsigned long)current_thread_info() + THREAD_SIZE) - 1)
-
-#if CONFIG_HEXAGON_ARCH_VERSION >= 4
-#define arch_has_single_step()	(1)
-#endif
-
-
 #endif

scripts/headers_install.sh

@@ -74,7 +74,6 @@ arch/arc/include/uapi/asm/page.h:CONFIG_ARC_PAGE_SIZE_16K
 arch/arc/include/uapi/asm/page.h:CONFIG_ARC_PAGE_SIZE_4K
 arch/arc/include/uapi/asm/swab.h:CONFIG_ARC_HAS_SWAPE
 arch/arm/include/uapi/asm/ptrace.h:CONFIG_CPU_ENDIAN_BE8
-arch/hexagon/include/uapi/asm/ptrace.h:CONFIG_HEXAGON_ARCH_VERSION
 arch/hexagon/include/uapi/asm/user.h:CONFIG_HEXAGON_ARCH_VERSION
 arch/m68k/include/uapi/asm/ptrace.h:CONFIG_COLDFIRE
 arch/nios2/include/uapi/asm/swab.h:CONFIG_NIOS2_CI_SWAB_NO