Sparse picked up a number of functions that are implemented in C and
then only referred to in asm code.
This introduces asm-prototypes.h, which provides a place for
prototypes of these functions.
This silences some sparse warnings.
Signed-off-by: Daniel Axtens <dja at axtens.net>
---
arch/powerpc/include/asm/asm-prototypes.h | 79 +++++++++++++++++++++++
arch/powerpc/kernel/machine_kexec_64.c | 1 +
arch/powerpc/kernel/smp.c | 1 +
arch/powerpc/kernel/traps.c | 1 +
arch/powerpc/lib/vmx-helper.c | 1 +
arch/powerpc/platforms/powernv/opal-tracepoints.c | 1 +
arch/powerpc/platforms/pseries/lpar.c | 1 +
7 files changed, 85 insertions(+)
create mode 100644 arch/powerpc/include/asm/asm-prototypes.h
diff --git a/arch/powerpc/include/asm/asm-prototypes.h b/arch/powerpc/include/asm/asm-prototypes.h
new file mode 100644
index 000000000000..6ee0a9d80bbc
--- /dev/null
+++ b/arch/powerpc/include/asm/asm-prototypes.h
@@ -0,0 +1,79 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Copyright IBM Corp. 2016
+ *
+ * Authors: Daniel Axtens <dja at axtens.net>
+ */
+
+/*
+ * This file is for prototypes of C functions that are only called
+ * from asm, and any associated variables.
+ */
+
+#include <linux/threads.h>
+#include <linux/kprobes.h>
+
+/* SMP */
+extern struct thread_info *current_set[NR_CPUS];
+extern struct thread_info *secondary_ti;
+void start_secondary(void *unused);
+
+/* kexec */
+struct paca_struct;
+struct kimage;
+extern struct paca_struct kexec_paca;
+void kexec_copy_flush(struct kimage *image);
+
+/* pSeries hcall tracing */
+extern struct static_key hcall_tracepoint_key;
+void __trace_hcall_entry(unsigned long opcode, unsigned long *args);
+void __trace_hcall_exit(long opcode, unsigned long retval,
+ unsigned long *retbuf);
+/* OPAL tracing */
+#ifdef HAVE_JUMP_LABEL
+extern struct static_key opal_tracepoint_key;
+#endif
+
+void __trace_opal_entry(unsigned long opcode, unsigned long *args);
+void __trace_opal_exit(long opcode, unsigned long retval);
+
+/* VMX copying */
+int enter_vmx_usercopy(void);
+int exit_vmx_usercopy(void);
+int enter_vmx_copy(void);
+void * exit_vmx_copy(void *dest);
+
+/* Traps */
+long machine_check_early(struct pt_regs *regs);
+long hmi_exception_realmode(struct pt_regs *regs);
+void SMIException(struct pt_regs *regs);
+void handle_hmi_exception(struct pt_regs *regs);
+void instruction_breakpoint_exception(struct pt_regs *regs);
+void RunModeException(struct pt_regs *regs);
+void __kprobes single_step_exception(struct pt_regs *regs);
+void __kprobes program_check_exception(struct pt_regs *regs);
+void alignment_exception(struct pt_regs *regs);
+void StackOverflow(struct pt_regs *regs);
+void nonrecoverable_exception(struct pt_regs *regs);
+void kernel_fp_unavailable_exception(struct pt_regs *regs);
+void altivec_unavailable_exception(struct pt_regs *regs);
+void vsx_unavailable_exception(struct pt_regs *regs);
+void fp_unavailable_tm(struct pt_regs *regs);
+void altivec_unavailable_tm(struct pt_regs *regs);
+void vsx_unavailable_tm(struct pt_regs *regs);
+void facility_unavailable_exception(struct pt_regs *regs);
+void TAUException(struct pt_regs *regs);
+void altivec_assist_exception(struct pt_regs *regs);
+void unrecoverable_exception(struct pt_regs *regs);
+void kernel_bad_stack(struct pt_regs *regs);
+void system_reset_exception(struct pt_regs *regs);
+void machine_check_exception(struct pt_regs *regs);
+void __kprobes emulation_assist_interrupt(struct pt_regs *regs);
diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index b8c202d63ecb..50bf55135ef8 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -29,6 +29,7 @@
#include <asm/prom.h>
#include <asm/smp.h>
#include <asm/hw_breakpoint.h>
+#include <asm/asm-prototypes.h>
#ifdef CONFIG_PPC_BOOK3E
int default_machine_kexec_prepare(struct kimage *image)
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 55c924b65f71..f1adc3c4f4ca 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -53,6 +53,7 @@
#include <asm/vdso.h>
#include <asm/debug.h>
#include <asm/kexec.h>
+#include <asm/asm-prototypes.h>
#ifdef DEBUG
#include <asm/udbg.h>
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 9229ba63c370..11d15e7270e0 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -60,6 +60,7 @@
#include <asm/switch_to.h>
#include <asm/tm.h>
#include <asm/debug.h>
+#include <asm/asm-prototypes.h>
#include <sysdev/fsl_pci.h>
#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC)
diff --git a/arch/powerpc/lib/vmx-helper.c b/arch/powerpc/lib/vmx-helper.c
index b27e030fc9f8..bf925cdcaca9 100644
--- a/arch/powerpc/lib/vmx-helper.c
+++ b/arch/powerpc/lib/vmx-helper.c
@@ -21,6 +21,7 @@
#include <linux/uaccess.h>
#include <linux/hardirq.h>
#include <asm/switch_to.h>
+#include <asm/asm-prototypes.h>
int enter_vmx_usercopy(void)
{
diff --git a/arch/powerpc/platforms/powernv/opal-tracepoints.c b/arch/powerpc/platforms/powernv/opal-tracepoints.c
index e11273b2386d..1e496b780efd 100644
--- a/arch/powerpc/platforms/powernv/opal-tracepoints.c
+++ b/arch/powerpc/platforms/powernv/opal-tracepoints.c
@@ -1,6 +1,7 @@
#include <linux/percpu.h>
#include <linux/jump_label.h>
#include <asm/trace.h>
+#include <asm/asm-prototypes.h>
#ifdef HAVE_JUMP_LABEL
struct static_key opal_tracepoint_key = STATIC_KEY_INIT;
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 7f6100d91b4b..03ff9867a610 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -45,6 +45,7 @@
#include <asm/plpar_wrappers.h>
#include <asm/kexec.h>
#include <asm/fadump.h>
+#include <asm/asm-prototypes.h>
#include "pseries.h"
--
2.5.0