Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Mostly simple overlapping changes.

For example, David Ahern's adjacency list revamp in 'net-next'
conflicted with an adjacency list traversal bug fix in 'net'.

Signed-off-by: David S. Miller <davem@davemloft.net>

8 files changed, 37 insertions, 62 deletions

diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index 72ccc41444dc..1f0fe98f6db9 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -61,7 +61,7 @@ obj-y	+= entry.o reipl.o relocate_kernel.o
 
 extra-y				+= head.o head64.o vmlinux.lds
 
-obj-$(CONFIG_MODULES)		+= s390_ksyms.o module.o
+obj-$(CONFIG_MODULES)		+= module.o
 obj-$(CONFIG_SMP)		+= smp.o
 obj-$(CONFIG_SCHED_TOPOLOGY)	+= topology.o
 obj-$(CONFIG_HIBERNATION)	+= suspend.o swsusp.o
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index 43446fa2a4e5..c74c59236f44 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -2014,12 +2014,12 @@ void show_code(struct pt_regs *regs)
 			*ptr++ = '\t';
 		ptr += print_insn(ptr, code + start, addr);
 		start += opsize;
-		printk("%s", buffer);
+		pr_cont("%s", buffer);
 		ptr = buffer;
 		ptr += sprintf(ptr, "\n          ");
 		hops++;
 	}
-	printk("\n");
+	pr_cont("\n");
 }
 
 void print_fn_code(unsigned char *code, unsigned long len)
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 6693383bc01b..55d4fe174fd9 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -38,10 +38,10 @@ __dump_trace(dump_trace_func_t func, void *data, unsigned long sp,
 		if (sp < low || sp > high - sizeof(*sf))
 			return sp;
 		sf = (struct stack_frame *) sp;
+		if (func(data, sf->gprs[8], 0))
+			return sp;
 		/* Follow the backchain. */
 		while (1) {
-			if (func(data, sf->gprs[8]))
-				return sp;
 			low = sp;
 			sp = sf->back_chain;
 			if (!sp)
@@ -49,6 +49,8 @@ __dump_trace(dump_trace_func_t func, void *data, unsigned long sp,
 			if (sp <= low || sp > high - sizeof(*sf))
 				return sp;
 			sf = (struct stack_frame *) sp;
+			if (func(data, sf->gprs[8], 1))
+				return sp;
 		}
 		/* Zero backchain detected, check for interrupt frame. */
 		sp = (unsigned long) (sf + 1);
@@ -56,7 +58,7 @@ __dump_trace(dump_trace_func_t func, void *data, unsigned long sp,
 			return sp;
 		regs = (struct pt_regs *) sp;
 		if (!user_mode(regs)) {
-			if (func(data, regs->psw.addr))
+			if (func(data, regs->psw.addr, 1))
 				return sp;
 		}
 		low = sp;
@@ -85,33 +87,12 @@ void dump_trace(dump_trace_func_t func, void *data, struct task_struct *task,
 }
 EXPORT_SYMBOL_GPL(dump_trace);
 
-struct return_address_data {
-	unsigned long address;
-	int depth;
-};
-
-static int __return_address(void *data, unsigned long address)
-{
-	struct return_address_data *rd = data;
-
-	if (rd->depth--)
-		return 0;
-	rd->address = address;
-	return 1;
-}
-
-unsigned long return_address(int depth)
-{
-	struct return_address_data rd = { .depth = depth + 2 };
-
-	dump_trace(__return_address, &rd, NULL, current_stack_pointer());
-	return rd.address;
-}
-EXPORT_SYMBOL_GPL(return_address);
-
-static int show_address(void *data, unsigned long address)
+static int show_address(void *data, unsigned long address, int reliable)
 {
-	printk("([<%016lx>] %pSR)\n", address, (void *)address);
+	if (reliable)
+		printk(" [<%016lx>] %pSR \n", address, (void *)address);
+	else
+		printk("([<%016lx>] %pSR)\n", address, (void *)address);
 	return 0;
 }
 
@@ -138,14 +119,14 @@ void show_stack(struct task_struct *task, unsigned long *sp)
 		else
 			stack = (unsigned long *)task->thread.ksp;
 	}
+	printk(KERN_DEFAULT "Stack:\n");
 	for (i = 0; i < 20; i++) {
 		if (((addr_t) stack & (THREAD_SIZE-1)) == 0)
 			break;
-		if ((i * sizeof(long) % 32) == 0)
-			printk("%s       ", i == 0 ? "" : "\n");
-		printk("%016lx ", *stack++);
+		if (i % 4 == 0)
+			printk(KERN_DEFAULT "       ");
+		pr_cont("%016lx%c", *stack++, i % 4 == 3 ? '\n' : ' ');
 	}
-	printk("\n");
 	show_trace(task, (unsigned long)sp);
 }
 
@@ -163,13 +144,13 @@ void show_registers(struct pt_regs *regs)
 	mode = user_mode(regs) ? "User" : "Krnl";
 	printk("%s PSW : %p %p", mode, (void *)regs->psw.mask, (void *)regs->psw.addr);
 	if (!user_mode(regs))
-		printk(" (%pSR)", (void *)regs->psw.addr);
-	printk("\n");
+		pr_cont(" (%pSR)", (void *)regs->psw.addr);
+	pr_cont("\n");
 	printk("           R:%x T:%x IO:%x EX:%x Key:%x M:%x W:%x "
 	       "P:%x AS:%x CC:%x PM:%x", psw->r, psw->t, psw->i, psw->e,
 	       psw->key, psw->m, psw->w, psw->p, psw->as, psw->cc, psw->pm);
-	printk(" RI:%x EA:%x", psw->ri, psw->eaba);
-	printk("\n%s GPRS: %016lx %016lx %016lx %016lx\n", mode,
+	pr_cont(" RI:%x EA:%x\n", psw->ri, psw->eaba);
+	printk("%s GPRS: %016lx %016lx %016lx %016lx\n", mode,
 	       regs->gprs[0], regs->gprs[1], regs->gprs[2], regs->gprs[3]);
 	printk("           %016lx %016lx %016lx %016lx\n",
 	       regs->gprs[4], regs->gprs[5], regs->gprs[6], regs->gprs[7]);
@@ -205,14 +186,14 @@ void die(struct pt_regs *regs, const char *str)
 	printk("%s: %04x ilc:%d [#%d] ", str, regs->int_code & 0xffff,
 	       regs->int_code >> 17, ++die_counter);
 #ifdef CONFIG_PREEMPT
-	printk("PREEMPT ");
+	pr_cont("PREEMPT ");
 #endif
 #ifdef CONFIG_SMP
-	printk("SMP ");
+	pr_cont("SMP ");
 #endif
 	if (debug_pagealloc_enabled())
-		printk("DEBUG_PAGEALLOC");
-	printk("\n");
+		pr_cont("DEBUG_PAGEALLOC");
+	pr_cont("\n");
 	notify_die(DIE_OOPS, str, regs, 0, regs->int_code & 0xffff, SIGSEGV);
 	print_modules();
 	show_regs(regs);
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index c51650a1ed16..49a30737adde 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -23,6 +23,7 @@
 #include <asm/vx-insn.h>
 #include <asm/setup.h>
 #include <asm/nmi.h>
+#include <asm/export.h>
 
 __PT_R0      =	__PT_GPRS
 __PT_R1      =	__PT_GPRS + 8
@@ -259,6 +260,8 @@ sie_exit:
 
 	EX_TABLE(.Lrewind_pad,.Lsie_fault)
 	EX_TABLE(sie_exit,.Lsie_fault)
+EXPORT_SYMBOL(sie64a)
+EXPORT_SYMBOL(sie_exit)
 #endif
 
 /*
@@ -825,6 +828,9 @@ ENTRY(save_fpu_regs)
 	oi	__LC_CPU_FLAGS+7,_CIF_FPU
 	br	%r14
 .Lsave_fpu_regs_end:
+#if IS_ENABLED(CONFIG_KVM)
+EXPORT_SYMBOL(save_fpu_regs)
+#endif
 
 /*
  * Load floating-point controls and floating-point or vector registers.
diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S
index e499370fbccb..9a17e4475d27 100644
--- a/arch/s390/kernel/mcount.S
+++ b/arch/s390/kernel/mcount.S
@@ -9,6 +9,7 @@
 #include <asm/asm-offsets.h>
 #include <asm/ftrace.h>
 #include <asm/ptrace.h>
+#include <asm/export.h>
 
 	.section .kprobes.text, "ax"
 
@@ -23,6 +24,8 @@ ENTRY(ftrace_stub)
 ENTRY(_mcount)
 	br	%r14
 
+EXPORT_SYMBOL(_mcount)
+
 ENTRY(ftrace_caller)
 	.globl	ftrace_regs_caller
 	.set	ftrace_regs_caller,ftrace_caller
diff --git a/arch/s390/kernel/perf_event.c b/arch/s390/kernel/perf_event.c
index 17431f63de00..955a7b6fa0a4 100644
--- a/arch/s390/kernel/perf_event.c
+++ b/arch/s390/kernel/perf_event.c
@@ -222,7 +222,7 @@ static int __init service_level_perf_register(void)
 }
 arch_initcall(service_level_perf_register);
 
-static int __perf_callchain_kernel(void *data, unsigned long address)
+static int __perf_callchain_kernel(void *data, unsigned long address, int reliable)
 {
 	struct perf_callchain_entry_ctx *entry = data;
 
diff --git a/arch/s390/kernel/s390_ksyms.c b/arch/s390/kernel/s390_ksyms.c
deleted file mode 100644
index e67453b73c3c..000000000000
--- a/arch/s390/kernel/s390_ksyms.c
+++ /dev/null
@@ -1,15 +0,0 @@
-#include <linux/module.h>
-#include <linux/kvm_host.h>
-#include <asm/fpu/api.h>
-#include <asm/ftrace.h>
-
-#ifdef CONFIG_FUNCTION_TRACER
-EXPORT_SYMBOL(_mcount);
-#endif
-#if IS_ENABLED(CONFIG_KVM)
-EXPORT_SYMBOL(sie64a);
-EXPORT_SYMBOL(sie_exit);
-EXPORT_SYMBOL(save_fpu_regs);
-#endif
-EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(memset);
diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c
index 44f84b23d4e5..355db9db8210 100644
--- a/arch/s390/kernel/stacktrace.c
+++ b/arch/s390/kernel/stacktrace.c
@@ -27,12 +27,12 @@ static int __save_address(void *data, unsigned long address, int nosched)
 	return 1;
 }
 
-static int save_address(void *data, unsigned long address)
+static int save_address(void *data, unsigned long address, int reliable)
 {
 	return __save_address(data, address, 0);
 }
 
-static int save_address_nosched(void *data, unsigned long address)
+static int save_address_nosched(void *data, unsigned long address, int reliable)
 {
 	return __save_address(data, address, 1);
 }