Merge 06a81c1c7d ("Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux") into android-mainline

Steps on the way to 5.9-rc1

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id74224d7f18ddadb68bee87a17093de49331c8be

Documentation/driver-api/ipmi.rst

@@ -516,6 +516,7 @@ at module load time (for a module) with::
 	slave_addrs=<addr1>,<addr2>,...
 	tryacpi=[0|1] trydmi=[0|1]
 	[dbg_probe=1]
+	alerts_broken
 
 The addresses are normal I2C addresses.  The adapter is the string
 name of the adapter, as shown in /sys/class/i2c-adapter/i2c-<n>/name.
@@ -537,6 +538,9 @@ The slave_addrs specifies the IPMI address of the local BMC.  This is
 usually 0x20 and the driver defaults to that, but in case it's not, it
 can be specified when the driver starts up.
 
+alerts_broken does not enable SMBus alert for SSIF. Otherwise SMBus
+alert will be enabled on supported hardware.
+
 Discovering the IPMI compliant BMC on the SMBus can cause devices on
 the I2C bus to fail. The SMBus driver writes a "Get Device ID" IPMI
 message as a block write to the I2C bus and waits for a response.

arch/arm64/include/asm/fixmap.h

@@ -28,10 +28,9 @@
  * compile time, but to set the physical address only
  * in the boot process.
  *
- * These 'compile-time allocated' memory buffers are
- * page-sized. Use set_fixmap(idx,phys) to associate
- * physical memory with fixmap indices.
- *
+ * Each enum increment in these 'compile-time allocated'
+ * memory buffers is page-sized. Use set_fixmap(idx,phys)
+ * to associate physical memory with a fixmap index.
  */
 enum fixed_addresses {
 	FIX_HOLE,

arch/arm64/include/asm/smp.h

@@ -46,7 +46,12 @@ DECLARE_PER_CPU_READ_MOSTLY(int, cpu_number);
  * Logical CPU mapping.
  */
 extern u64 __cpu_logical_map[NR_CPUS];
-#define cpu_logical_map(cpu)    __cpu_logical_map[cpu]
+extern u64 cpu_logical_map(int cpu);
+
+static inline void set_cpu_logical_map(int cpu, u64 hwid)
+{
+	__cpu_logical_map[cpu] = hwid;
+}
 
 struct seq_file;
 

arch/arm64/kernel/setup.c

@@ -85,7 +85,7 @@ u64 __cacheline_aligned boot_args[4];
 void __init smp_setup_processor_id(void)
 {
 	u64 mpidr = read_cpuid_mpidr() & MPIDR_HWID_BITMASK;
-	cpu_logical_map(0) = mpidr;
+	set_cpu_logical_map(0, mpidr);
 
 	/*
 	 * clear __my_cpu_offset on boot CPU to avoid hang caused by
@@ -276,6 +276,12 @@ arch_initcall(reserve_memblock_reserved_regions);
 
 u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
 
+u64 cpu_logical_map(int cpu)
+{
+	return __cpu_logical_map[cpu];
+}
+EXPORT_SYMBOL_GPL(cpu_logical_map);
+
 void __init __no_sanitize_address setup_arch(char **cmdline_p)
 {
 	init_mm.start_code = (unsigned long) _text;

arch/arm64/kernel/smp.c

@@ -566,7 +566,7 @@ acpi_map_gic_cpu_interface(struct acpi_madt_generic_interrupt *processor)
 		return;
 
 	/* map the logical cpu id to cpu MPIDR */
-	cpu_logical_map(cpu_count) = hwid;
+	set_cpu_logical_map(cpu_count, hwid);
 
 	cpu_madt_gicc[cpu_count] = *processor;
 
@@ -680,7 +680,7 @@ static void __init of_parse_and_init_cpus(void)
 			goto next;
 
 		pr_debug("cpu logical map 0x%llx\n", hwid);
-		cpu_logical_map(cpu_count) = hwid;
+		set_cpu_logical_map(cpu_count, hwid);
 
 		early_map_cpu_to_node(cpu_count, of_node_to_nid(dn));
 next:
@@ -721,7 +721,7 @@ void __init smp_init_cpus(void)
 	for (i = 1; i < nr_cpu_ids; i++) {
 		if (cpu_logical_map(i) != INVALID_HWID) {
 			if (smp_cpu_setup(i))
-				cpu_logical_map(i) = INVALID_HWID;
+				set_cpu_logical_map(i, INVALID_HWID);
 		}
 	}
 }

drivers/char/ipmi/ipmi_msghandler.c

@@ -3080,8 +3080,6 @@ static int __ipmi_bmc_register(struct ipmi_smi *intf,
 	rv = sysfs_create_link(&bmc->pdev.dev.kobj, &intf->si_dev->kobj,
 			       intf->my_dev_name);
 	if (rv) {
-		kfree(intf->my_dev_name);
-		intf->my_dev_name = NULL;
 		dev_err(intf->si_dev, "Unable to create symlink to bmc: %d\n",
 			rv);
 		goto out_free_my_dev_name;

drivers/char/ipmi/ipmi_ssif.c

@@ -22,11 +22,6 @@
  * and drives the real SSIF state machine.
  */
 
-/*
- * TODO: Figure out how to use SMB alerts.  This will require a new
- * interface into the I2C driver, I believe.
- */
-
 #define pr_fmt(fmt) "ipmi_ssif: " fmt
 #define dev_fmt(fmt) "ipmi_ssif: " fmt
 

drivers/char/ipmi/ipmi_watchdog.c

@@ -232,12 +232,17 @@ static int set_param_str(const char *val, const struct kernel_param *kp)
 static int get_param_str(char *buffer, const struct kernel_param *kp)
 {
 	action_fn fn = (action_fn) kp->arg;
-	int       rv;
+	int rv, len;
 
 	rv = fn(NULL, buffer);
 	if (rv)
 		return rv;
-	return strlen(buffer);
+
+	len = strlen(buffer);
+	buffer[len++] = '\n';
+	buffer[len] = 0;
+
+	return len;
 }