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

No conflicts.

Build issue in drivers/net/ethernet/sfc/ptp.c
  54fccfdd7c66 ("sfc: efx_default_channel_type APIs can be static")
  49e6123c65da ("net: sfc: fix memory leak due to ptp channel")
https://lore.kernel.org/all/20220510130556.52598fe2@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

36 files changed, 347 insertions, 191 deletions

diff --git a/arch/mips/include/asm/timex.h b/arch/mips/include/asm/timex.h
index b05bb70a2e46..8026baf46e72 100644
--- a/arch/mips/include/asm/timex.h
+++ b/arch/mips/include/asm/timex.h
@@ -40,9 +40,9 @@
 typedef unsigned int cycles_t;
 
 /*
- * On R4000/R4400 before version 5.0 an erratum exists such that if the
- * cycle counter is read in the exact moment that it is matching the
- * compare register, no interrupt will be generated.
+ * On R4000/R4400 an erratum exists such that if the cycle counter is
+ * read in the exact moment that it is matching the compare register,
+ * no interrupt will be generated.
  *
  * There is a suggested workaround and also the erratum can't strike if
  * the compare interrupt isn't being used as the clock source device.
@@ -63,7 +63,7 @@ static inline int can_use_mips_counter(unsigned int prid)
 	if (!__builtin_constant_p(cpu_has_counter))
 		asm volatile("" : "=m" (cpu_data[0].options));
 	if (likely(cpu_has_counter &&
-		   prid >= (PRID_IMP_R4000 | PRID_REV_ENCODE_44(5, 0))))
+		   prid > (PRID_IMP_R4000 | PRID_REV_ENCODE_44(15, 15))))
 		return 1;
 	else
 		return 0;
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index caa01457dce6..ed339d7979f3 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -141,15 +141,10 @@ static __init int cpu_has_mfc0_count_bug(void)
 	case CPU_R4400MC:
 		/*
 		 * The published errata for the R4400 up to 3.0 say the CPU
-		 * has the mfc0 from count bug.
+		 * has the mfc0 from count bug.  This seems the last version
+		 * produced.
 		 */
-		if ((current_cpu_data.processor_id & 0xff) <= 0x30)
-			return 1;
-
-		/*
-		 * we assume newer revisions are ok
-		 */
-		return 0;
+		return 1;
 	}
 
 	return 0;
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 52e550b45692..bd22578859d0 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -38,6 +38,7 @@ config PARISC
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_ARCH_TOPOLOGY if SMP
+	select GENERIC_CPU_DEVICES if !SMP
 	select GENERIC_LIB_DEVMEM_IS_ALLOWED
 	select SYSCTL_ARCH_UNALIGN_ALLOW
 	select SYSCTL_EXCEPTION_TRACE
diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
index a5fee10d76ee..8ce0ae370680 100644
--- a/arch/parisc/configs/generic-32bit_defconfig
+++ b/arch/parisc/configs/generic-32bit_defconfig
@@ -6,6 +6,9 @@ CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=16
+CONFIG_CGROUPS=y
+CONFIG_NAMESPACES=y
+CONFIG_USER_NS=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_EXPERT=y
 CONFIG_PERF_EVENTS=y
@@ -47,7 +50,6 @@ CONFIG_PARPORT=y
 CONFIG_PARPORT_PC=m
 CONFIG_PARPORT_1284=y
 CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_CRYPTOLOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=6144
 CONFIG_BLK_DEV_SD=y
diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
index 1b8fd80cbe7f..57501b0aed92 100644
--- a/arch/parisc/configs/generic-64bit_defconfig
+++ b/arch/parisc/configs/generic-64bit_defconfig
@@ -16,6 +16,7 @@ CONFIG_CGROUPS=y
 CONFIG_MEMCG=y
 CONFIG_CGROUP_PIDS=y
 CONFIG_CPUSETS=y
+CONFIG_USER_NS=y
 CONFIG_RELAY=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
@@ -267,9 +268,9 @@ CONFIG_CRYPTO_DEFLATE=m
 CONFIG_CRC_CCITT=m
 CONFIG_LIBCRC32C=y
 CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_KERNEL=y
 CONFIG_STRIP_ASM_SYMS=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_FS=y
-CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_STACKOVERFLOW=y
 # CONFIG_SCHED_DEBUG is not set
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 939db6fe620b..69765a6dbe89 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -160,7 +160,7 @@ extern void __update_cache(pte_t pte);
 #define SPACEID_SHIFT	(MAX_ADDRBITS - 32)
 #else
 #define MAX_ADDRBITS	(BITS_PER_LONG)
-#define MAX_ADDRESS	(1UL << MAX_ADDRBITS)
+#define MAX_ADDRESS	(1ULL << MAX_ADDRBITS)
 #define SPACEID_SHIFT	0
 #endif
 
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 23348199f3f8..e7911225a4f8 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -403,7 +403,7 @@ void __init parisc_setup_cache_timing(void)
 {
 	unsigned long rangetime, alltime;
 	unsigned long size;
-	unsigned long threshold, threshold2;
+	unsigned long threshold;
 
 	alltime = mfctl(16);
 	flush_data_cache();
@@ -418,20 +418,8 @@ void __init parisc_setup_cache_timing(void)
 		alltime, size, rangetime);
 
 	threshold = L1_CACHE_ALIGN(size * alltime / rangetime);
-
-	/*
-	 * The threshold computed above isn't very reliable since the
-	 * flush times depend greatly on the percentage of dirty lines
-	 * in the flush range. Further, the whole cache time doesn't
-	 * include the time to refill lines that aren't in the mm/vma
-	 * being flushed. By timing glibc build and checks on mako cpus,
-	 * the following formula seems to work reasonably well. The
-	 * value from the timing calculation is too small, and increases
-	 * build and check times by almost a factor two.
-	 */
-	threshold2 = cache_info.dc_size * num_online_cpus();
-	if (threshold2 > threshold)
-		threshold = threshold2;
+	if (threshold > cache_info.dc_size)
+		threshold = cache_info.dc_size;
 	if (threshold)
 		parisc_cache_flush_threshold = threshold;
 	printk(KERN_INFO "Cache flush threshold set to %lu KiB\n",
diff --git a/arch/parisc/kernel/kprobes.c b/arch/parisc/kernel/kprobes.c
index 3343d2fb7889..6e0b86652f30 100644
--- a/arch/parisc/kernel/kprobes.c
+++ b/arch/parisc/kernel/kprobes.c
@@ -152,7 +152,7 @@ int __kprobes parisc_kprobe_ss_handler(struct pt_regs *regs)
 	/* for absolute branch instructions we can copy iaoq_b. for relative
 	 * branch instructions we need to calculate the new address based on the
 	 * difference between iaoq_f and iaoq_b. We cannot use iaoq_b without
-	 * modificationt because it's based on our ainsn.insn address.
+	 * modifications because it's based on our ainsn.insn address.
 	 */
 
 	if (p->post_handler)
diff --git a/arch/parisc/kernel/patch.c b/arch/parisc/kernel/patch.c
index e59574f65e64..80a0ab372802 100644
--- a/arch/parisc/kernel/patch.c
+++ b/arch/parisc/kernel/patch.c
@@ -40,7 +40,10 @@ static void __kprobes *patch_map(void *addr, int fixmap, unsigned long *flags,
 
 	*need_unmap = 1;
 	set_fixmap(fixmap, page_to_phys(page));
-	raw_spin_lock_irqsave(&patch_lock, *flags);
+	if (flags)
+		raw_spin_lock_irqsave(&patch_lock, *flags);
+	else
+		__acquire(&patch_lock);
 
 	return (void *) (__fix_to_virt(fixmap) + (uintaddr & ~PAGE_MASK));
 }
@@ -49,7 +52,10 @@ static void __kprobes patch_unmap(int fixmap, unsigned long *flags)
 {
 	clear_fixmap(fixmap);
 
-	raw_spin_unlock_irqrestore(&patch_lock, *flags);
+	if (flags)
+		raw_spin_unlock_irqrestore(&patch_lock, *flags);
+	else
+		__release(&patch_lock);
 }
 
 void __kprobes __patch_text_multiple(void *addr, u32 *insn, unsigned int len)
@@ -61,9 +67,8 @@ void __kprobes __patch_text_multiple(void *addr, u32 *insn, unsigned int len)
 	int mapped;
 
 	/* Make sure we don't have any aliases in cache */
-	flush_kernel_dcache_range_asm(start, end);
-	flush_kernel_icache_range_asm(start, end);
-	flush_tlb_kernel_range(start, end);
+	flush_kernel_vmap_range(addr, len);
+	flush_icache_range(start, end);
 
 	p = fixmap = patch_map(addr, FIX_TEXT_POKE0, &flags, &mapped);
 
@@ -76,10 +81,8 @@ void __kprobes __patch_text_multiple(void *addr, u32 *insn, unsigned int len)
 			 * We're crossing a page boundary, so
 			 * need to remap
 			 */
-			flush_kernel_dcache_range_asm((unsigned long)fixmap,
-						      (unsigned long)p);
-			flush_tlb_kernel_range((unsigned long)fixmap,
-					       (unsigned long)p);
+			flush_kernel_vmap_range((void *)fixmap,
+						(p-fixmap) * sizeof(*p));
 			if (mapped)
 				patch_unmap(FIX_TEXT_POKE0, &flags);
 			p = fixmap = patch_map(addr, FIX_TEXT_POKE0, &flags,
@@ -87,10 +90,10 @@ void __kprobes __patch_text_multiple(void *addr, u32 *insn, unsigned int len)
 		}
 	}
 
-	flush_kernel_dcache_range_asm((unsigned long)fixmap, (unsigned long)p);
-	flush_tlb_kernel_range((unsigned long)fixmap, (unsigned long)p);
+	flush_kernel_vmap_range((void *)fixmap, (p-fixmap) * sizeof(*p));
 	if (mapped)
 		patch_unmap(FIX_TEXT_POKE0, &flags);
+	flush_icache_range(start, end);
 }
 
 void __kprobes __patch_text(void *addr, u32 insn)
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index d98692115221..26eb568f8b96 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -171,6 +171,7 @@ static int __init processor_probe(struct parisc_device *dev)
 	p->cpu_num = cpu_info.cpu_num;
 	p->cpu_loc = cpu_info.cpu_loc;
 
+	set_cpu_possible(cpuid, true);
 	store_cpu_topology(cpuid);
 
 #ifdef CONFIG_SMP
@@ -419,8 +420,7 @@ show_cpuinfo (struct seq_file *m, void *v)
 		}
 		seq_printf(m, " (0x%02lx)\n", boot_cpu_data.pdc.capabilities);
 
-		seq_printf(m, "model\t\t: %s\n"
-				"model name\t: %s\n",
+		seq_printf(m, "model\t\t: %s - %s\n",
 				 boot_cpu_data.pdc.sys_model_name,
 				 cpuinfo->dev ?
 				 cpuinfo->dev->name : "Unknown");
@@ -461,6 +461,13 @@ static struct parisc_driver cpu_driver __refdata = {
  */
 void __init processor_init(void)
 {
+	unsigned int cpu;
+
 	reset_cpu_topology();
+
+	/* reset possible mask. We will mark those which are possible. */
+	for_each_possible_cpu(cpu)
+		set_cpu_possible(cpu, false);
+
 	register_parisc_driver(&cpu_driver);
 }
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index b91cb45ffd4e..f005ddedb50e 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -161,6 +161,8 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_PA11
 	dma_ops_init();
 #endif
+
+	clear_sched_clock_stable();
 }
 
 /*
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index bb27dfeeddfc..9714fbd7c42d 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -251,13 +251,9 @@ void __init time_init(void)
 static int __init init_cr16_clocksource(void)
 {
 	/*
-	 * The cr16 interval timers are not syncronized across CPUs, even if
-	 * they share the same socket.
+	 * The cr16 interval timers are not synchronized across CPUs.
 	 */
 	if (num_online_cpus() > 1 && !running_on_qemu) {
-		/* mark sched_clock unstable */
-		clear_sched_clock_stable();
-
 		clocksource_cr16.name = "cr16_unstable";
 		clocksource_cr16.flags = CLOCK_SOURCE_UNSTABLE;
 		clocksource_cr16.rating = 0;
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index a6e61cf2cad0..b78f1b9d45c1 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -469,7 +469,7 @@ void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long o
 	 * panic notifiers, and we should call panic
 	 * directly from the location that we wish. 
 	 * e.g. We should not call panic from
-	 * parisc_terminate, but rather the oter way around.
+	 * parisc_terminate, but rather the other way around.
 	 * This hack works, prints the panic message twice,
 	 * and it enables reboot timers!
 	 */
diff --git a/arch/parisc/math-emu/dfadd.c b/arch/parisc/math-emu/dfadd.c
index ec487e07f004..00e561d4aa55 100644
--- a/arch/parisc/math-emu/dfadd.c
+++ b/arch/parisc/math-emu/dfadd.c
@@ -253,7 +253,7 @@ dbl_fadd(
 	    return(NOEXCEPTION);
 	    }
 	right_exponent = 1;	/* Set exponent to reflect different bias
-				 * with denomalized numbers. */
+				 * with denormalized numbers. */
 	}
     else
 	{
diff --git a/arch/parisc/math-emu/dfsub.c b/arch/parisc/math-emu/dfsub.c
index c4f30acf2d48..4f03782284bd 100644
--- a/arch/parisc/math-emu/dfsub.c
+++ b/arch/parisc/math-emu/dfsub.c
@@ -256,7 +256,7 @@ dbl_fsub(
 	    return(NOEXCEPTION);
 	    }
 	right_exponent = 1;	/* Set exponent to reflect different bias
-				 * with denomalized numbers. */
+				 * with denormalized numbers. */
 	}
     else
 	{
diff --git a/arch/parisc/math-emu/sfadd.c b/arch/parisc/math-emu/sfadd.c
index 838758279d5b..9b98c874dfac 100644
--- a/arch/parisc/math-emu/sfadd.c
+++ b/arch/parisc/math-emu/sfadd.c
@@ -249,7 +249,7 @@ sgl_fadd(
 	    return(NOEXCEPTION);
 	    }
 	right_exponent = 1;	/* Set exponent to reflect different bias
-				 * with denomalized numbers. */
+				 * with denormalized numbers. */
 	}
     else
 	{
diff --git a/arch/parisc/math-emu/sfsub.c b/arch/parisc/math-emu/sfsub.c
index 583d3ace4634..29d9eed09d12 100644
--- a/arch/parisc/math-emu/sfsub.c
+++ b/arch/parisc/math-emu/sfsub.c
@@ -252,7 +252,7 @@ sgl_fsub(
 	    return(NOEXCEPTION);
 	    }
 	right_exponent = 1;	/* Set exponent to reflect different bias
-				 * with denomalized numbers. */
+				 * with denormalized numbers. */
 	}
     else
 	{
diff --git a/arch/powerpc/kernel/vdso/gettimeofday.S b/arch/powerpc/kernel/vdso/gettimeofday.S
index eb9c81e1c218..0c4ecc8fec5a 100644
--- a/arch/powerpc/kernel/vdso/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso/gettimeofday.S
@@ -22,12 +22,15 @@
 .macro cvdso_call funct call_time=0
   .cfi_startproc
 	PPC_STLU	r1, -PPC_MIN_STKFRM(r1)
+  .cfi_adjust_cfa_offset PPC_MIN_STKFRM
 	mflr		r0
-  .cfi_register lr, r0
 	PPC_STLU	r1, -PPC_MIN_STKFRM(r1)
+  .cfi_adjust_cfa_offset PPC_MIN_STKFRM
 	PPC_STL		r0, PPC_MIN_STKFRM + PPC_LR_STKOFF(r1)
+  .cfi_rel_offset lr, PPC_MIN_STKFRM + PPC_LR_STKOFF
 #ifdef __powerpc64__
 	PPC_STL		r2, PPC_MIN_STKFRM + STK_GOT(r1)
+  .cfi_rel_offset r2, PPC_MIN_STKFRM + STK_GOT
 #endif
 	get_datapage	r5
 	.ifeq	\call_time
@@ -39,13 +42,15 @@
 	PPC_LL		r0, PPC_MIN_STKFRM + PPC_LR_STKOFF(r1)
 #ifdef __powerpc64__
 	PPC_LL		r2, PPC_MIN_STKFRM + STK_GOT(r1)
+  .cfi_restore r2
 #endif
 	.ifeq	\call_time
 	cmpwi		r3, 0
 	.endif
 	mtlr		r0
-  .cfi_restore lr
 	addi		r1, r1, 2 * PPC_MIN_STKFRM
+  .cfi_restore lr
+  .cfi_def_cfa_offset 0
 	crclr		so
 	.ifeq	\call_time
 	beqlr+
diff --git a/arch/powerpc/platforms/pseries/papr_scm.c b/arch/powerpc/platforms/pseries/papr_scm.c
index f58728d5f10d..39962c905542 100644
--- a/arch/powerpc/platforms/pseries/papr_scm.c
+++ b/arch/powerpc/platforms/pseries/papr_scm.c
@@ -462,7 +462,6 @@ static int papr_scm_pmu_check_events(struct papr_scm_priv *p, struct nvdimm_pmu
 {
 	struct papr_scm_perf_stat *stat;
 	struct papr_scm_perf_stats *stats;
-	char *statid;
 	int index, rc, count;
 	u32 available_events;
 
@@ -493,14 +492,12 @@ static int papr_scm_pmu_check_events(struct papr_scm_priv *p, struct nvdimm_pmu
 
 	for (index = 0, stat = stats->scm_statistic, count = 0;
 		     index < available_events; index++, ++stat) {
-		statid = kzalloc(strlen(stat->stat_id) + 1, GFP_KERNEL);
-		if (!statid) {
+		p->nvdimm_events_map[count] = kmemdup_nul(stat->stat_id, 8, GFP_KERNEL);
+		if (!p->nvdimm_events_map[count]) {
 			rc = -ENOMEM;
 			goto out_nvdimm_events_map;
 		}
 
-		strcpy(statid, stat->stat_id);
-		p->nvdimm_events_map[count] = statid;
 		count++;
 	}
 	p->nvdimm_events_map[count] = NULL;
diff --git a/arch/powerpc/platforms/pseries/vas-sysfs.c b/arch/powerpc/platforms/pseries/vas-sysfs.c
index 909535ca513a..ec65586cbeb3 100644
--- a/arch/powerpc/platforms/pseries/vas-sysfs.c
+++ b/arch/powerpc/platforms/pseries/vas-sysfs.c
@@ -27,22 +27,31 @@ struct vas_caps_entry {
 
 /*
  * This function is used to get the notification from the drmgr when
- * QoS credits are changed. Though receiving the target total QoS
- * credits here, get the official QoS capabilities from the hypervisor.
+ * QoS credits are changed.
  */
-static ssize_t update_total_credits_trigger(struct vas_cop_feat_caps *caps,
+static ssize_t update_total_credits_store(struct vas_cop_feat_caps *caps,
 						const char *buf, size_t count)
 {
 	int err;
 	u16 creds;
 
 	err = kstrtou16(buf, 0, &creds);
+	/*
+	 * The user space interface from the management console
+	 * notifies OS with the new QoS credits and then the
+	 * hypervisor. So OS has to use this new credits value
+	 * and reconfigure VAS windows (close or reopen depends
+	 * on the credits available) instead of depending on VAS
+	 * QoS capabilities from the hypervisor.
+	 */
 	if (!err)
-		err = vas_reconfig_capabilties(caps->win_type);
+		err = vas_reconfig_capabilties(caps->win_type, creds);
 
 	if (err)
 		return -EINVAL;
 
+	pr_info("Set QoS total credits %u\n", creds);
+
 	return count;
 }
 
@@ -92,7 +101,7 @@ VAS_ATTR_RO(nr_total_credits);
 VAS_ATTR_RO(nr_used_credits);
 
 static struct vas_sysfs_entry update_total_credits_attribute =
-	__ATTR(update_total_credits, 0200, NULL, update_total_credits_trigger);
+	__ATTR(update_total_credits, 0200, NULL, update_total_credits_store);
 
 static struct attribute *vas_def_capab_attrs[] = {
 	&nr_total_credits_attribute.attr,
diff --git a/arch/powerpc/platforms/pseries/vas.c b/arch/powerpc/platforms/pseries/vas.c
index 1f59d78c77a1..ec643bbdb67f 100644
--- a/arch/powerpc/platforms/pseries/vas.c
+++ b/arch/powerpc/platforms/pseries/vas.c
@@ -779,10 +779,10 @@ static int reconfig_close_windows(struct vas_caps *vcap, int excess_creds,
  * changes. Reconfig window configurations based on the credits
  * availability from this new capabilities.
  */
-int vas_reconfig_capabilties(u8 type)
+int vas_reconfig_capabilties(u8 type, int new_nr_creds)
 {
 	struct vas_cop_feat_caps *caps;
-	int old_nr_creds, new_nr_creds;
+	int old_nr_creds;
 	struct vas_caps *vcaps;
 	int rc = 0, nr_active_wins;
 
@@ -795,12 +795,6 @@ int vas_reconfig_capabilties(u8 type)
 	caps = &vcaps->caps;
 
 	mutex_lock(&vas_pseries_mutex);
-	rc = h_query_vas_capabilities(H_QUERY_VAS_CAPABILITIES, vcaps->feat,
-				      (u64)virt_to_phys(&hv_cop_caps));
-	if (rc)
-		goto out;
-
-	new_nr_creds = be16_to_cpu(hv_cop_caps.target_lpar_creds);
 
 	old_nr_creds = atomic_read(&caps->nr_total_credits);
 
@@ -832,7 +826,6 @@ int vas_reconfig_capabilties(u8 type)
 					false);
 	}
 
-out:
 	mutex_unlock(&vas_pseries_mutex);
 	return rc;
 }
@@ -850,7 +843,7 @@ static int pseries_vas_notifier(struct notifier_block *nb,
 	struct of_reconfig_data *rd = data;
 	struct device_node *dn = rd->dn;
 	const __be32 *intserv = NULL;
-	int len, rc = 0;
+	int new_nr_creds, len, rc = 0;
 
 	if ((action == OF_RECONFIG_ATTACH_NODE) ||
 		(action == OF_RECONFIG_DETACH_NODE))
@@ -862,7 +855,15 @@ static int pseries_vas_notifier(struct notifier_block *nb,
 	if (!intserv)
 		return NOTIFY_OK;
 
-	rc = vas_reconfig_capabilties(VAS_GZIP_DEF_FEAT_TYPE);
+	rc = h_query_vas_capabilities(H_QUERY_VAS_CAPABILITIES,
+					vascaps[VAS_GZIP_DEF_FEAT_TYPE].feat,
+					(u64)virt_to_phys(&hv_cop_caps));
+	if (!rc) {
+		new_nr_creds = be16_to_cpu(hv_cop_caps.target_lpar_creds);
+		rc = vas_reconfig_capabilties(VAS_GZIP_DEF_FEAT_TYPE,
+						new_nr_creds);
+	}
+
 	if (rc)
 		pr_err("Failed reconfig VAS capabilities with DLPAR\n");
 
diff --git a/arch/powerpc/platforms/pseries/vas.h b/arch/powerpc/platforms/pseries/vas.h
index 34177881e998..333ffa2f9f42 100644
--- a/arch/powerpc/platforms/pseries/vas.h
+++ b/arch/powerpc/platforms/pseries/vas.h
@@ -135,7 +135,7 @@ struct pseries_vas_window {
 };
 
 int sysfs_add_vas_caps(struct vas_cop_feat_caps *caps);
-int vas_reconfig_capabilties(u8 type);
+int vas_reconfig_capabilties(u8 type, int new_nr_creds);
 int __init sysfs_pseries_vas_init(struct vas_all_caps *vas_caps);
 
 #ifdef CONFIG_PPC_VAS
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index b0793dc0c291..05ed641a1134 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -208,8 +208,25 @@ static void __init setup_bootmem(void)
 	 * early_init_fdt_reserve_self() since __pa() does
 	 * not work for DTB pointers that are fixmap addresses
 	 */
-	if (!IS_ENABLED(CONFIG_BUILTIN_DTB))
-		memblock_reserve(dtb_early_pa, fdt_totalsize(dtb_early_va));
+	if (!IS_ENABLED(CONFIG_BUILTIN_DTB)) {
+		/*
+		 * In case the DTB is not located in a memory region we won't
+		 * be able to locate it later on via the linear mapping and
+		 * get a segfault when accessing it via __va(dtb_early_pa).
+		 * To avoid this situation copy DTB to a memory region.
+		 * Note that memblock_phys_alloc will also reserve DTB region.
+		 */
+		if (!memblock_is_memory(dtb_early_pa)) {
+			size_t fdt_size = fdt_totalsize(dtb_early_va);
+			phys_addr_t new_dtb_early_pa = memblock_phys_alloc(fdt_size, PAGE_SIZE);
+			void *new_dtb_early_va = early_memremap(new_dtb_early_pa, fdt_size);
+
+			memcpy(new_dtb_early_va, dtb_early_va, fdt_size);
+			early_memunmap(new_dtb_early_va, fdt_size);
+			_dtb_early_pa = new_dtb_early_pa;
+		} else
+			memblock_reserve(dtb_early_pa, fdt_totalsize(dtb_early_va));
+	}
 
 	early_init_fdt_scan_reserved_mem();
 	dma_contiguous_reserve(dma32_phys_limit);
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index e441b60b1812..df325eacf62d 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -30,6 +30,16 @@ KBUILD_CFLAGS_DECOMPRESSOR += -fno-stack-protector
 KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-disable-warning, address-of-packed-member)
 KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),-g)
 KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,))
+
+ifdef CONFIG_CC_IS_GCC
+	ifeq ($(call cc-ifversion, -ge, 1200, y), y)
+		ifeq ($(call cc-ifversion, -lt, 1300, y), y)
+			KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds)
+			KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-disable-warning, array-bounds)
+		endif
+	endif
+endif
+
 UTS_MACHINE	:= s390x
 STACK_SIZE	:= $(if $(CONFIG_KASAN),65536,16384)
 CHECKFLAGS	+= -D__s390__ -D__s390x__
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index da3dabda1a12..76ad6408cb2c 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2384,7 +2384,16 @@ static int kvm_s390_vm_mem_op(struct kvm *kvm, struct kvm_s390_mem_op *mop)
 		return -EINVAL;
 	if (mop->size > MEM_OP_MAX_SIZE)
 		return -E2BIG;
-	if (kvm_s390_pv_is_protected(kvm))
+