Linux 6.17.4

index fcf3d557aa78..3cdf223addcc 100644
@@ -2,12 +2,46 @@
 /*
  * am33xx-restart.c - Code common to all AM33xx machines.
  */
+#include <dt-bindings/pinctrl/am33xx.h>
+#include <linux/delay.h>
 #include <linux/kernel.h>
 #include <linux/reboot.h>
 
 #include "common.h"
+#include "control.h"
 #include "prm.h"
 
+/*
+ * Advisory 1.0.36 EMU0 and EMU1: Terminals Must be Pulled High Before
+ * ICEPick Samples
+ *
+ * If EMU0/EMU1 pins have been used as GPIO outputs and actively driving low
+ * level, the device might not reboot in normal mode. We are in a bad position
+ * to override GPIO state here, so just switch the pins into EMU input mode
+ * (that's what reset will do anyway) and wait a bit, because the state will be
+ * latched 190 ns after reset.
+ */
+static void am33xx_advisory_1_0_36(void)
+{
+	u32 emu0 = omap_ctrl_readl(AM335X_PIN_EMU0);
+	u32 emu1 = omap_ctrl_readl(AM335X_PIN_EMU1);
+
+	/* If both pins are in EMU mode, nothing to do */
+	if (!(emu0 & 7) && !(emu1 & 7))
+		return;
+
+	/* Switch GPIO3_7/GPIO3_8 into EMU0/EMU1 modes respectively */
+	omap_ctrl_writel(emu0 & ~7, AM335X_PIN_EMU0);
+	omap_ctrl_writel(emu1 & ~7, AM335X_PIN_EMU1);
+
+	/*
+	 * Give pull-ups time to load the pin/PCB trace capacity.
+	 * 5 ms shall be enough to load 1 uF (would be huge capacity for these
+	 * pins) with TI-recommended 4k7 external pull-ups.
+	 */
+	mdelay(5);
+}
+
 /**
  * am33xx_restart - trigger a software restart of the SoC
  * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c

@@ -18,6 +52,8 @@
  */
 void am33xx_restart(enum reboot_mode mode, const char *cmd)
 {
+	am33xx_advisory_1_0_36();
+
 	/* TODO: Handle cmd if necessary */
 	prm_reboot_mode = mode;
 

index c907478be196..4abb86dc98fd 100644
@@ -388,12 +388,15 @@ static int __init amx3_idle_init(struct device_node *cpu_node, int cpu)
 		if (!state_node)
 			break;
 
-		if (!of_device_is_available(state_node))
+		if (!of_device_is_available(state_node)) {
+			of_node_put(state_node);
 			continue;
+		}
 
 		if (i == CPUIDLE_STATE_MAX) {
 			pr_warn("%s: cpuidle states reached max possible\n",
 				__func__);
+			of_node_put(state_node);
 			break;
 		}
 

@@ -403,6 +406,7 @@ static int __init amx3_idle_init(struct device_node *cpu_node, int cpu)
 			states[state_count].wfi_flags |= WFI_FLAG_WAKE_M3 |
 							 WFI_FLAG_FLUSH_CACHE;
 
+		of_node_put(state_node);
 		state_count++;
 	}
 

index bfe3ce9df197..ba7cf7fec5e9 100644
@@ -153,6 +153,7 @@ ftrace_partial_regs(const struct ftrace_regs *fregs, struct pt_regs *regs)
 	regs->pc = afregs->pc;
 	regs->regs[29] = afregs->fp;
 	regs->regs[30] = afregs->lr;
+	regs->pstate = PSR_MODE_EL1h;
 	return regs;
 }
 

index ef269a5a37e1..3e9d1aa37bbf 100644
@@ -2408,17 +2408,21 @@ static void bti_enable(const struct arm64_cpu_capabilities *__unused)
 #ifdef CONFIG_ARM64_MTE
 static void cpu_enable_mte(struct arm64_cpu_capabilities const *cap)
 {
+	static bool cleared_zero_page = false;
+
 	sysreg_clear_set(sctlr_el1, 0, SCTLR_ELx_ATA | SCTLR_EL1_ATA0);
 
 	mte_cpu_setup();
 
 	/*
 	 * Clear the tags in the zero page. This needs to be done via the
-	 * linear map which has the Tagged attribute.
+	 * linear map which has the Tagged attribute. Since this page is
+	 * always mapped as pte_special(), set_pte_at() will not attempt to
+	 * clear the tags or set PG_mte_tagged.
 	 */
-	if (try_page_mte_tagging(ZERO_PAGE(0))) {
+	if (!cleared_zero_page) {
+		cleared_zero_page = true;
 		mte_clear_page_tags(lm_alias(empty_zero_page));
-		set_page_mte_tagged(ZERO_PAGE(0));
 	}
 
 	kasan_init_hw_tags_cpu();

index e5e773844889..63aed49ac181 100644
@@ -460,7 +460,7 @@ static int __access_remote_tags(struct mm_struct *mm, unsigned long addr,
 		if (folio_test_hugetlb(folio))
 			WARN_ON_ONCE(!folio_test_hugetlb_mte_tagged(folio));
 		else
-			WARN_ON_ONCE(!page_mte_tagged(page));
+			WARN_ON_ONCE(!page_mte_tagged(page) && !is_zero_page(page));
 
 		/* limit access to the end of the page */
 		offset = offset_in_page(addr);

index 0f4bd7771859..a8d76d0354da 100644
@@ -78,6 +78,12 @@ static void __init map_kernel(u64 kaslr_offset, u64 va_offset, int root_level)
 	twopass |= enable_scs;
 	prot = twopass ? data_prot : text_prot;
 
+	/*
+	 * [_stext, _text) isn't executed after boot and contains some
+	 * non-executable, unpredictable data, so map it non-executable.
+	 */
+	map_segment(init_pg_dir, &pgdp, va_offset, _text, _stext, data_prot,
+		    false, root_level);
 	map_segment(init_pg_dir, &pgdp, va_offset, _stext, _etext, prot,
 		    !twopass, root_level);
 	map_segment(init_pg_dir, &pgdp, va_offset, __start_rodata,

index 0c5d408afd95..8ab6104a4883 100644
@@ -10,6 +10,7 @@
 
 #define pr_fmt(fmt) "kprobes: " fmt
 
+#include <linux/execmem.h>
 #include <linux/extable.h>
 #include <linux/kasan.h>
 #include <linux/kernel.h>

@@ -41,6 +42,17 @@ DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 static void __kprobes
 post_kprobe_handler(struct kprobe *, struct kprobe_ctlblk *, struct pt_regs *);
 
+void *alloc_insn_page(void)
+{
+	void *addr;
+
+	addr = execmem_alloc(EXECMEM_KPROBES, PAGE_SIZE);
+	if (!addr)
+		return NULL;
+	set_memory_rox((unsigned long)addr, 1);
+	return addr;
+}
+
 static void __kprobes arch_prepare_ss_slot(struct kprobe *p)
 {
 	kprobe_opcode_t *addr = p->ainsn.xol_insn;

index 77c7926a4df6..23c05dc7a8f2 100644
@@ -214,7 +214,7 @@ static void __init request_standard_resources(void)
 	unsigned long i = 0;
 	size_t res_size;
 
-	kernel_code.start   = __pa_symbol(_stext);
+	kernel_code.start   = __pa_symbol(_text);
 	kernel_code.end     = __pa_symbol(__init_begin - 1);
 	kernel_data.start   = __pa_symbol(_sdata);
 	kernel_data.end     = __pa_symbol(_end - 1);

@@ -280,7 +280,7 @@ u64 cpu_logical_map(unsigned int cpu)
 
 void __init __no_sanitize_address setup_arch(char **cmdline_p)
 {
-	setup_initial_init_mm(_stext, _etext, _edata, _end);
+	setup_initial_init_mm(_text, _etext, _edata, _end);
 
 	*cmdline_p = boot_command_line;
 

index 8957734d6183..ddc8beb55eee 100644
@@ -1010,9 +1010,12 @@ static int __check_host_shared_guest(struct pkvm_hyp_vm *vm, u64 *__phys, u64 ip
 		return ret;
 	if (!kvm_pte_valid(pte))
 		return -ENOENT;
-	if (kvm_granule_size(level) != size)
+	if (size && kvm_granule_size(level) != size)
 		return -E2BIG;
 
+	if (!size)
+		size = kvm_granule_size(level);
+
 	state = guest_get_page_state(pte, ipa);
 	if (state != PKVM_PAGE_SHARED_BORROWED)
 		return -EPERM;

@@ -1100,7 +1103,7 @@ int __pkvm_host_relax_perms_guest(u64 gfn, struct pkvm_hyp_vcpu *vcpu, enum kvm_
 	if (prot & ~KVM_PGTABLE_PROT_RWX)
 		return -EINVAL;
 
-	assert_host_shared_guest(vm, ipa, PAGE_SIZE);
+	assert_host_shared_guest(vm, ipa, 0);
 	guest_lock_component(vm);
 	ret = kvm_pgtable_stage2_relax_perms(&vm->pgt, ipa, prot, 0);
 	guest_unlock_component(vm);

@@ -1156,7 +1159,7 @@ int __pkvm_host_mkyoung_guest(u64 gfn, struct pkvm_hyp_vcpu *vcpu)
 	if (pkvm_hyp_vm_is_protected(vm))
 		return -EPERM;
 
-	assert_host_shared_guest(vm, ipa, PAGE_SIZE);
+	assert_host_shared_guest(vm, ipa, 0);
 	guest_lock_component(vm);
 	kvm_pgtable_stage2_mkyoung(&vm->pgt, ipa, 0);
 	guest_unlock_component(vm);

index 736394292503..705c06d6752d 100644
@@ -1673,7 +1673,7 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 			 * cache maintenance.
 			 */
 			if (!kvm_supports_cacheable_pfnmap())
-				return -EFAULT;
+				ret = -EFAULT;
 		} else {
 			/*
 			 * If the page was identified as device early by looking at

@@ -1696,7 +1696,12 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 	}
 
 	if (exec_fault && s2_force_noncacheable)
-		return -ENOEXEC;
+		ret = -ENOEXEC;
+
+	if (ret) {
+		kvm_release_page_unused(page);
+		return ret;
+	}
 
 	/*
 	 * Potentially reduce shadow S2 permissions to match the guest's own

index ea84a61ed508..0dd558613bd7 100644
@@ -279,7 +279,7 @@ void __init arm64_memblock_init(void)
 	 * Register the kernel text, kernel data, initrd, and initial
 	 * pagetables with memblock.
 	 */
-	memblock_reserve(__pa_symbol(_stext), _end - _stext);
+	memblock_reserve(__pa_symbol(_text), _end - _text);
 	if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && phys_initrd_size) {
 		/* the generic initrd code expects virtual addresses */
 		initrd_start = __phys_to_virt(phys_initrd_start);

index 183801520740..324b96e3632c 100644
@@ -574,8 +574,8 @@ void __init mark_linear_text_alias_ro(void)
 	/*
 	 * Remove the write permissions from the linear alias of .text/.rodata
 	 */
-	update_mapping_prot(__pa_symbol(_stext), (unsigned long)lm_alias(_stext),
-			    (unsigned long)__init_begin - (unsigned long)_stext,
+	update_mapping_prot(__pa_symbol(_text), (unsigned long)lm_alias(_text),
+			    (unsigned long)__init_begin - (unsigned long)_text,
 			    PAGE_KERNEL_RO);
 }
 

@@ -636,7 +636,7 @@ static inline void arm64_kfence_map_pool(phys_addr_t kfence_pool, pgd_t *pgdp) {
 static void __init map_mem(pgd_t *pgdp)
 {
 	static const u64 direct_map_end = _PAGE_END(VA_BITS_MIN);
-	phys_addr_t kernel_start = __pa_symbol(_stext);
+	phys_addr_t kernel_start = __pa_symbol(_text);
 	phys_addr_t kernel_end = __pa_symbol(__init_begin);
 	phys_addr_t start, end;
 	phys_addr_t early_kfence_pool;

@@ -683,7 +683,7 @@ static void __init map_mem(pgd_t *pgdp)
 	}
 
 	/*
-	 * Map the linear alias of the [_stext, __init_begin) interval
+	 * Map the linear alias of the [_text, __init_begin) interval
 	 * as non-executable now, and remove the write permission in
 	 * mark_linear_text_alias_ro() below (which will be called after
 	 * alternative patching has completed). This makes the contents

@@ -710,6 +710,10 @@ void mark_rodata_ro(void)
 	WRITE_ONCE(rodata_is_rw, false);
 	update_mapping_prot(__pa_symbol(__start_rodata), (unsigned long)__start_rodata,
 			    section_size, PAGE_KERNEL_RO);
+	/* mark the range between _text and _stext as read only. */
+	update_mapping_prot(__pa_symbol(_text), (unsigned long)_text,
+			    (unsigned long)_stext - (unsigned long)_text,
+			    PAGE_KERNEL_RO);
 }
 
 static void __init declare_vma(struct vm_struct *vma,

@@ -780,7 +784,7 @@ static void __init declare_kernel_vmas(void)
 {
 	static struct vm_struct vmlinux_seg[KERNEL_SEGMENT_COUNT];
 
-	declare_vma(&vmlinux_seg[0], _stext, _etext, VM_NO_GUARD);
+	declare_vma(&vmlinux_seg[0], _text, _etext, VM_NO_GUARD);
 	declare_vma(&vmlinux_seg[1], __start_rodata, __inittext_begin, VM_NO_GUARD);
 	declare_vma(&vmlinux_seg[2], __inittext_begin, __inittext_end, VM_NO_GUARD);
 	declare_vma(&vmlinux_seg[3], __initdata_begin, __initdata_end, VM_NO_GUARD);

index 075b79b2c1d3..69c17d162fff 100644
@@ -355,6 +355,7 @@ void __init platform_init(void)
 
 #ifdef CONFIG_ACPI
 	acpi_table_upgrade();
+	acpi_gbl_use_global_lock = false;
 	acpi_gbl_use_default_register_widths = false;
 	acpi_boot_table_init();
 #endif

index 82d1148c6379..74b4027a4e80 100644
@@ -10,10 +10,10 @@
 #define TCSETS		_IOW('T', 17, struct termios) /* TCSETATTR */
 #define TCSETSW		_IOW('T', 18, struct termios) /* TCSETATTRD */
 #define TCSETSF		_IOW('T', 19, struct termios) /* TCSETATTRF */
-#define TCGETA		_IOR('T', 1, struct termio)
-#define TCSETA		_IOW('T', 2, struct termio)
-#define TCSETAW		_IOW('T', 3, struct termio)
-#define TCSETAF		_IOW('T', 4, struct termio)
+#define TCGETA          0x40125401
+#define TCSETA          0x80125402
+#define TCSETAW         0x80125403
+#define TCSETAF         0x80125404
 #define TCSBRK		_IO('T', 5)
 #define TCXONC		_IO('T', 6)
 #define TCFLSH		_IO('T', 7)

index 69d65ffab312..03165c82dfdb 100644
@@ -41,7 +41,6 @@ unsigned long raw_copy_from_user(void *dst, const void __user *src,
 	mtsp(get_kernel_space(), SR_TEMP2);
 
 	/* Check region is user accessible */
-	if (start)
 	while (start < end) {
 		if (!prober_user(SR_TEMP1, start)) {
 			newlen = (start - (unsigned long) src);

index d8ccf2c9b98a..0166bf39ce1e 100644
@@ -1854,7 +1854,7 @@ static int pnv_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 	return 0;
 
 out:
-	irq_domain_free_irqs_parent(domain, virq, i - 1);
+	irq_domain_free_irqs_parent(domain, virq, i);
 	msi_bitmap_free_hwirqs(&phb->msi_bmp, hwirq, nr_irqs);
 	return ret;
 }

index ee1c8c6898a3..9dc294de631f 100644
@@ -593,7 +593,7 @@ static int pseries_irq_domain_alloc(struct irq_domain *domain, unsigned int virq
 
 out:
 	/* TODO: handle RTAS cleanup in ->msi_finish() ? */
-	irq_domain_free_irqs_parent(domain, virq, i - 1);
+	irq_domain_free_irqs_parent(domain, virq, i);
 	return ret;
 }
 

index c1a7a92f0575..b7100c6a4054 100644
@@ -2055,4 +2055,26 @@ static inline unsigned long gmap_pgste_get_pgt_addr(unsigned long *pgt)
 	return res;
 }
 
+static inline pgste_t pgste_get_lock(pte_t *ptep)
+{
+	unsigned long value = 0;
+#ifdef CONFIG_PGSTE
+	unsigned long *ptr = (unsigned long *)(ptep + PTRS_PER_PTE);
+
+	do {
+		value = __atomic64_or_barrier(PGSTE_PCL_BIT, ptr);
+	} while (value & PGSTE_PCL_BIT);
+	value |= PGSTE_PCL_BIT;
+#endif
+	return __pgste(value);
+}
+
+static inline void pgste_set_unlock(pte_t *ptep, pgste_t pgste)
+{
+#ifdef CONFIG_PGSTE
+	barrier();
+	WRITE_ONCE(*(unsigned long *)(ptep + PTRS_PER_PTE), pgste_val(pgste) & ~PGSTE_PCL_BIT);
+#endif
+}
+
 #endif /* _S390_PAGE_H */

index b63f427e7289..d4c3c36855e2 100644
@@ -15,6 +15,7 @@
 #include <linux/pagewalk.h>
 #include <linux/ksm.h>
 #include <asm/gmap_helpers.h>
+#include <asm/pgtable.h>
 
 /**
  * ptep_zap_swap_entry() - discard a swap entry.

@@ -47,6 +48,7 @@ void gmap_helper_zap_one_page(struct mm_struct *mm, unsigned long vmaddr)
 {
 	struct vm_area_struct *vma;
 	spinlock_t *ptl;
+	pgste_t pgste;
 	pte_t *ptep;
 
 	mmap_assert_locked(mm);

@@ -60,8 +62,16 @@ void gmap_helper_zap_one_page(struct mm_struct *mm, unsigned long vmaddr)
 	ptep = get_locked_pte(mm, vmaddr, &ptl);
 	if (unlikely(!ptep))
 		return;
-	if (pte_swap(*ptep))
+	if (pte_swap(*ptep)) {
+		preempt_disable();
+		pgste = pgste_get_lock(ptep);
+
 		ptep_zap_swap_entry(mm, pte_to_swp_entry(*ptep));
+		pte_clear(mm, vmaddr, ptep);
+
+		pgste_set_unlock(ptep, pgste);
+		preempt_enable();
+	}
 	pte_unmap_unlock(ptep, ptl);
 }
 EXPORT_SYMBOL_GPL(gmap_helper_zap_one_page);

index 50eb57c976bc..0fde20bbc50b 100644
@@ -24,6 +24,7 @@
 #include <asm/tlbflush.h>
 #include <asm/mmu_context.h>
 #include <asm/page-states.h>
+#include <asm/pgtable.h>
 #include <asm/machine.h>
 
 pgprot_t pgprot_writecombine(pgprot_t prot)

@@ -115,28 +116,6 @@ static inline pte_t ptep_flush_lazy(struct mm_struct *mm,
 	return old;
 }
 
-static inline pgste_t pgste_get_lock(pte_t *ptep)
-{
-	unsigned long value = 0;
-#ifdef CONFIG_PGSTE
-	unsigned long *ptr = (unsigned long *)(ptep + PTRS_PER_PTE);
-
-	do {
-		value = __atomic64_or_barrier(PGSTE_PCL_BIT, ptr);
-	} while (value & PGSTE_PCL_BIT);
-	value |= PGSTE_PCL_BIT;
-#endif
-	return __pgste(value);
-}
-
-static inline void pgste_set_unlock(pte_t *ptep, pgste_t pgste)
-{
-#ifdef CONFIG_PGSTE
-	barrier();
-	WRITE_ONCE(*(unsigned long *)(ptep + PTRS_PER_PTE), pgste_val(pgste) & ~PGSTE_PCL_BIT);
-#endif
-}
-
 static inline pgste_t pgste_get(pte_t *ptep)
 {
 	unsigned long pgste = 0;

index 06012e68bdca..284a4cafa432 100644
@@ -387,6 +387,7 @@ static struct platform_device * __init scan_one_device(struct device_node *dp,
 
 	if (of_device_register(op)) {
 		printk("%pOF: Could not register of device.\n", dp);
+		put_device(&op->dev);
 		kfree(op);
 		op = NULL;
 	}

index f98c2901f335..f53092b07b9e 100644
@@ -677,6 +677,7 @@ static struct platform_device * __init scan_one_device(struct device_node *dp,
 
 	if (of_device_register(op)) {
 		printk("%pOF: Could not register of device.\n", dp);
+		put_device(&op->dev);
 		kfree(op);
 		op = NULL;
 	}

index 4b9431311e05..4652e868663b 100644
@@ -22,6 +22,26 @@
 
 static pte_t sun4u_hugepage_shift_to_tte(pte_t entry, unsigned int shift)
 {
+	unsigned long hugepage_size = _PAGE_SZ4MB_4U;
+
+	pte_val(entry) = pte_val(entry) & ~_PAGE_SZALL_4U;
+
+	switch (shift) {
+	case HPAGE_256MB_SHIFT:
+		hugepage_size = _PAGE_SZ256MB_4U;
+		pte_val(entry) |= _PAGE_PMD_HUGE;
+		break;
+	case HPAGE_SHIFT:
+		pte_val(entry) |= _PAGE_PMD_HUGE;
+		break;
+	case HPAGE_64K_SHIFT:
+		hugepage_size = _PAGE_SZ64K_4U;
+		break;
+	default:
+		WARN_ONCE(1, "unsupported hugepage shift=%u\n", shift);
+	}
+
+	pte_val(entry) = pte_val(entry) | hugepage_size;
 	return entry;
 }
 

index f19a76d3ca0e..a35ee44ec70a 100644
@@ -2356,6 +2356,7 @@ int kvm_add_user_return_msr(u32 msr);
 int kvm_find_user_return_msr(u32 msr);
 int kvm_set_user_return_msr(unsigned index, u64 val, u64 mask);
 void kvm_user_return_msr_update_cache(unsigned int index, u64 val);
+u64 kvm_get_user_return_msr(unsigned int slot);
 
 static inline bool kvm_is_supported_user_return_msr(u32 msr)
 {

index b65c3ba5fa14..20fa4a79df13 100644
@@ -733,6 +733,7 @@
 #define MSR_AMD64_PERF_CNTR_GLOBAL_STATUS	0xc0000300
 #define MSR_AMD64_PERF_CNTR_GLOBAL_CTL		0xc0000301
 #define MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_CLR	0xc0000302
+#define MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_SET	0xc0000303
 
 /* AMD Hardware Feedback Support MSRs */
 #define MSR_AMD_WORKLOAD_CLASS_CONFIG		0xc0000500

index 8ae750cde0c6..57379698015e 100644
@@ -933,6 +933,19 @@ static void kvm_sev_hc_page_enc_status(unsigned long pfn, int npages, bool enc)
 
 static void __init kvm_init_platform(void)
 {
+	u64 tolud = PFN_PHYS(e820__end_of_low_ram_pfn());
+	/*
+	 * Note, hardware requires variable MTRR ranges to be power-of-2 sized
+	 * and naturally aligned.  But when forcing guest MTRR state, Linux
+	 * doesn't program the forced ranges into hardware.  Don't bother doing
+	 * the math to generate a technically-legal range.
+	 */
+	struct mtrr_var_range pci_hole = {
+		.base_lo = tolud | X86_MEMTYPE_UC,
+		.mask_lo = (u32)(~(SZ_4G - tolud - 1)) | MTRR_PHYSMASK_V,
+		.mask_hi = (BIT_ULL(boot_cpu_data.x86_phys_bits) - 1) >> 32,
+	};
+
 	if (cc_platform_has(CC_ATTR_GUEST_MEM_ENCRYPT) &&
 	    kvm_para_has_feature(KVM_FEATURE_MIGRATION_CONTROL)) {
 		unsigned long nr_pages;

@@ -982,8 +995,12 @@ static void __init kvm_init_platform(void)
 	kvmclock_init();
 	x86_platform.apic_post_init = kvm_apic_init;
 
-	/* Set WB as the default cache mode for SEV-SNP and TDX */
-	guest_force_mtrr_state(NULL, 0, MTRR_TYPE_WRBACK);
+	/*
+	 * Set WB as the default cache mode for SEV-SNP and TDX, with a single
+	 * UC range for the legacy PCI hole, e.g. so that devices that expect
+	 * to get UC/WC mappings don't get surprised with WB.
+	 */
+	guest_force_mtrr_state(&pci_hole, 1, MTRR_TYPE_WRBACK);
 }
 
 #if defined(CONFIG_AMD_MEM_ENCRYPT)

index 5a4b21389b1d..d432f3824f0c 100644
@@ -156,15 +156,26 @@ static int identify_insn(struct insn *insn)
 	if (!insn->modrm.nbytes)
 		return -EINVAL;
 
-	/* All the instructions of interest start with 0x0f. */
-	if (insn->opcode.bytes[0] != 0xf)
+	/* The instructions of interest have 2-byte opcodes: 0F 00 or 0F 01. */
+	if (insn->opcode.nbytes < 2 || insn->opcode.bytes[0] != 0xf)
 		return -EINVAL;
 
 	if (insn->opcode.bytes[1] == 0x1) {
 		switch (X86_MODRM_REG(insn->modrm.value)) {
 		case 0:
+			/* The reg form of 0F 01 /0 encodes VMX instructions. */
+			if (X86_MODRM_MOD(insn->modrm.value) == 3)
+				return -EINVAL;
+
 			return UMIP_INST_SGDT;
 		case 1:
+			/*
+			 * The reg form of 0F 01 /1 encodes MONITOR/MWAIT,
+			 * STAC/CLAC, and ENCLS.
+			 */
+			if (X86_MODRM_MOD(insn->modrm.value) == 3)
+				return -EINVAL;
+
 			return UMIP_INST_SIDT;
 		case 4:
 			return UMIP_INST_SMSW;

index 75e9cfc689f8..a84fb3d28885 100644
@@ -650,6 +650,7 @@ int kvm_pmu_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		msr_info->data = pmu->global_ctrl;
 		break;
 	case MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_CLR:
+	case MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_SET:
 	case MSR_CORE_PERF_GLOBAL_OVF_CTRL:
 		msr_info->data = 0;
 		break;

@@ -711,6 +712,10 @@ int kvm_pmu_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		if (!msr_info->host_initiated)
 			pmu->global_status &= ~data;
 		break;
+	case MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_SET:
+		if (!msr_info->host_initiated)
+			pmu->global_status |= data & ~pmu->global_status_rsvd;
+		break;
 	default:
 		kvm_pmu_mark_pmc_in_use(vcpu, msr_info->index);
 		return kvm_pmu_call(set_msr)(vcpu, msr_info);

index 288f7f2a46f2..aa4379e46e96 100644
@@ -113,6 +113,7 @@ static bool amd_is_valid_msr(struct kvm_vcpu *vcpu, u32 msr)
 	case MSR_AMD64_PERF_CNTR_GLOBAL_STATUS:
 	case MSR_AMD64_PERF_CNTR_GLOBAL_CTL:
 	case MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_CLR:
+	case MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_SET:
 		return pmu->version > 1;
 	default:
 		if (msr > MSR_F15H_PERF_CTR5 &&

index 0635bd71c10e..7b1e9424af15 100644
@@ -4618,6 +4618,16 @@ void sev_es_prepare_switch_to_guest(struct vcpu_svm *svm, struct sev_es_save_are
 		hostsa->dr2_addr_mask = amd_get_dr_addr_mask(2);
 		hostsa->dr3_addr_mask = amd_get_dr_addr_mask(3);
 	}
+
+	/*
+	 * TSC_AUX is always virtualized for SEV-ES guests when the feature is
+	 * available, i.e. TSC_AUX is loaded on #VMEXIT from the host save area.
+	 * Set the save area to the current hardware value, i.e. the current
+	 * user return value, so that the correct value is restored on #VMEXIT.
+	 */
+	if (cpu_feature_enabled(X86_FEATURE_V_TSC_AUX) &&
+	    !WARN_ON_ONCE(tsc_aux_uret_slot < 0))
+		hostsa->tsc_aux = kvm_get_user_return_msr(tsc_aux_uret_slot);
 }
 
 void sev_vcpu_deliver_sipi_vector(struct kvm_vcpu *vcpu, u8 vector)

index c813d6cce69f..83ca0b05abc1 100644
@@ -195,7 +195,7 @@ static DEFINE_MUTEX(vmcb_dump_mutex);
  * RDTSCP and RDPID are not used in the kernel, specifically to allow KVM to
  * defer the restoration of TSC_AUX until the CPU returns to userspace.
  */
-static int tsc_aux_uret_slot __read_mostly = -1;
+int tsc_aux_uret_slot __ro_after_init = -1;
 
 static int get_npt_level(void)
 {

@@ -577,18 +577,6 @@ static int svm_enable_virtualization_cpu(void)
 
 	amd_pmu_enable_virt();
 
-	/*
-	 * If TSC_AUX virtualization is supported, TSC_AUX becomes a swap type
-	 * "B" field (see sev_es_prepare_switch_to_guest()) for SEV-ES guests.
-	 * Since Linux does not change the value of TSC_AUX once set, prime the
-	 * TSC_AUX field now to avoid a RDMSR on every vCPU run.
-	 */
-	if (boot_cpu_has(X86_FEATURE_V_TSC_AUX)) {
-		u32 __maybe_unused msr_hi;
-
-		rdmsr(MSR_TSC_AUX, sev_es_host_save_area(sd)->tsc_aux, msr_hi);
-	}
-
 	return 0;
 }
 

@@ -1423,10 +1411,10 @@ static void svm_prepare_switch_to_guest(struct kvm_vcpu *vcpu)
 		__svm_write_tsc_multiplier(vcpu->arch.tsc_scaling_ratio);
 
 	/*
-	 * TSC_AUX is always virtualized for SEV-ES guests when the feature is
-	 * available. The user return MSR support is not required in this case
-	 * because TSC_AUX is restored on #VMEXIT from the host save area
-	 * (which has been initialized in svm_enable_virtualization_cpu()).
+	 * TSC_AUX is always virtualized (context switched by hardware) for
+	 * SEV-ES guests when the feature is available.  For non-SEV-ES guests,
+	 * context switch TSC_AUX via the user_return MSR infrastructure (not
+	 * all CPUs support TSC_AUX virtualization).
 	 */
 	if (likely(tsc_aux_uret_slot >= 0) &&
 	    (!boot_cpu_has(X86_FEATURE_V_TSC_AUX) || !sev_es_guest(vcpu->kvm)))

@@ -3021,8 +3009,7 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
 		 * TSC_AUX is always virtualized for SEV-ES guests when the
 		 * feature is available. The user return MSR support is not
 		 * required in this case because TSC_AUX is restored on #VMEXIT
-		 * from the host save area (which has been initialized in
-		 * svm_enable_virtualization_cpu()).
+		 * from the host save area.
 		 */
 		if (boot_cpu_has(X86_FEATURE_V_TSC_AUX) && sev_es_guest(vcpu->kvm))
 			break;

index 58b9d168e0c8..04371aa8c8f2 100644
@@ -52,6 +52,8 @@ extern bool x2avic_enabled;
 extern bool vnmi;
 extern int lbrv;
 
+extern int tsc_aux_uret_slot __ro_after_init;
+
 /*
  * Clean bits in VMCB.
  * VMCB_ALL_CLEAN_MASK might also need to

index 66744f5768c8..d91d9d6bb26c 100644
@@ -3457,12 +3457,11 @@ static int __init __tdx_bringup(void)
 	if (r)
 		goto tdx_bringup_err;
 
+	r = -EINVAL;
 	/* Get TDX global information for later use */
 	tdx_sysinfo = tdx_get_sysinfo();
-	if (WARN_ON_ONCE(!tdx_sysinfo)) {
-		r = -EINVAL;
+	if (WARN_ON_ONCE(!tdx_sysinfo))
 		goto get_sysinfo_err;
-	}
 
 	/* Check TDX module and KVM capabilities */
 	if (!tdx_get_supported_attrs(&tdx_sysinfo->td_conf) ||

@@ -3505,14 +3504,11 @@ static int __init __tdx_bringup(void)
 	if (td_conf->max_vcpus_per_td < num_present_cpus()) {
 		pr_err("Disable TDX: MAX_VCPU_PER_TD (%u) smaller than number of logical CPUs (%u).\n",
 				td_conf->max_vcpus_per_td, num_present_cpus());
-		r = -EINVAL;
 		goto get_sysinfo_err;
 	}
 
-	if (misc_cg_set_capacity(MISC_CG_RES_TDX, tdx_get_nr_guest_keyids())) {
-		r = -EINVAL;
+	if (misc_cg_set_capacity(MISC_CG_RES_TDX, tdx_get_nr_guest_keyids()))
 		goto get_sysinfo_err;
-	}
 
 	/*
 	 * Leave hardware virtualization enabled after TDX is enabled

index e6ae226704cb..0affe0ec34dc 100644
@@ -367,6 +367,7 @@ static const u32 msrs_to_save_pmu[] = {
 	MSR_AMD64_PERF_CNTR_GLOBAL_CTL,
 	MSR_AMD64_PERF_CNTR_GLOBAL_STATUS,
 	MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_CLR,
+	MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_SET,
 };
 
 static u32 msrs_to_save[ARRAY_SIZE(msrs_to_save_base) +

@@ -677,6 +678,12 @@ void kvm_user_return_msr_update_cache(unsigned int slot, u64 value)
 }
 EXPORT_SYMBOL_GPL(kvm_user_return_msr_update_cache);
 
+u64 kvm_get_user_return_msr(unsigned int slot)
+{
+	return this_cpu_ptr(user_return_msrs)->values[slot].curr;
+}
+EXPORT_SYMBOL_GPL(kvm_get_user_return_msr);
+
 static void drop_user_return_notifiers(void)
 {
 	struct kvm_user_return_msrs *msrs = this_cpu_ptr(user_return_msrs);

@@ -7353,6 +7360,7 @@ static void kvm_probe_msr_to_save(u32 msr_index)
 	case MSR_AMD64_PERF_CNTR_GLOBAL_CTL:
 	case MSR_AMD64_PERF_CNTR_GLOBAL_STATUS:
 	case MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_CLR:
+	case MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_SET:
 		if (!kvm_cpu_cap_has(X86_FEATURE_PERFMON_V2))
 			return;
 		break;

index 6ed009318d24..3cafc8feddee 100644
@@ -231,10 +231,14 @@ static ssize_t proc_read_simdisk(struct file *file, char __user *buf,
 static ssize_t proc_write_simdisk(struct file *file, const char __user *buf,
 			size_t count, loff_t *ppos)
 {
-	char *tmp = memdup_user_nul(buf, count);
+	char *tmp;
 	struct simdisk *dev = pde_data(file_inode(file));
 	int err;
 
+	if (count == 0 || count > PAGE_SIZE)
+		return -EINVAL;
+
+	tmp = memdup_user_nul(buf, count);
 	if (IS_ERR(tmp))
 		return PTR_ERR(tmp);
 

index 005c9157ffb3..1f9a4c33d2bd 100644
@@ -18,6 +18,7 @@
 #include <linux/module.h>
 #include <linux/random.h>
 #include <linux/scatterlist.h>
+#include <trace/events/block.h>
 
 #include "blk-cgroup.h"
 #include "blk-crypto-internal.h"

@@ -231,7 +232,9 @@ static bool blk_crypto_fallback_split_bio_if_needed(struct bio **bio_ptr)
 			bio->bi_status = BLK_STS_RESOURCE;
 			return false;
 		}
+
 		bio_chain(split_bio, bio);
+		trace_block_split(split_bio, bio->bi_iter.bi_sector);
 		submit_bio_noacct(bio);
 		*bio_ptr = split_bio;
 	}

index d003b78fcd85..a47a3eab6935 100644
@@ -186,9 +186,14 @@ static int essiv_aead_crypt(struct aead_request *req, bool enc)
 	const struct essiv_tfm_ctx *tctx = crypto_aead_ctx(tfm);
 	struct essiv_aead_request_ctx *rctx = aead_request_ctx(req);
 	struct aead_request *subreq = &rctx->aead_req;
+	int ivsize = crypto_aead_ivsize(tfm);
+	int ssize = req->assoclen - ivsize;
 	struct scatterlist *src = req->src;
 	int err;
 
+	if (ssize < 0)
+		return -EINVAL;
+
 	crypto_cipher_encrypt_one(tctx->essiv_cipher, req->iv, req->iv);
 
 	/*

@@ -198,19 +203,12 @@ static int essiv_aead_crypt(struct aead_request *req, bool enc)
 	 */
 	rctx->assoc = NULL;
 	if (req->src == req->dst || !enc) {
-		scatterwalk_map_and_copy(req->iv, req->dst,
-					 req->assoclen - crypto_aead_ivsize(tfm),
-					 crypto_aead_ivsize(tfm), 1);
+		scatterwalk_map_and_copy(req->iv, req->dst, ssize, ivsize, 1);
 	} else {
 		u8 *iv = (u8 *)aead_request_ctx(req) + tctx->ivoffset;
-		int ivsize = crypto_aead_ivsize(tfm);
-		int ssize = req->assoclen - ivsize;
 		struct scatterlist *sg;
 		int nents;
 
-		if (ssize < 0)
-			return -EINVAL;
-
 		nents = sg_nents_for_len(req->src, ssize);
 		if (nents < 0)
 			return -EINVAL;

index de5fc91bba26..8fa5d9686d08 100644
@@ -294,6 +294,8 @@ static int crypto_skcipher_init_tfm(struct crypto_tfm *tfm)
 		return crypto_init_lskcipher_ops_sg(tfm);
 	}
 
+	crypto_skcipher_set_reqsize(skcipher, crypto_tfm_alg_reqsize(tfm));
+
 	if (alg->exit)
 		skcipher->base.exit = crypto_skcipher_exit_tfm;
 

index d50261d05f3a..515b20d0b698 100644
@@ -569,11 +569,11 @@ static int acpi_aml_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static int acpi_aml_read_user(char __user *buf, int len)
+static ssize_t acpi_aml_read_user(char __user *buf, size_t len)
 {
-	int ret;
 	struct circ_buf *crc = &acpi_aml_io.out_crc;
-	int n;
+	ssize_t ret;
+	size_t n;
 	char *p;
 
 	ret = acpi_aml_lock_read(crc, ACPI_AML_OUT_USER);

@@ -582,7 +582,7 @@ static int acpi_aml_read_user(char __user *buf, int len)
 	/* sync head before removing logs */
 	smp_rmb();
 	p = &crc->buf[crc->tail];
-	n = min(len, circ_count_to_end(crc));
+	n = min_t(size_t, len, circ_count_to_end(crc));
 	if (copy_to_user(buf, p, n)) {
 		ret = -EFAULT;
 		goto out;

@@ -599,8 +599,8 @@ static int acpi_aml_read_user(char __user *buf, int len)
 static ssize_t acpi_aml_read(struct file *file, char __user *buf,
 			     size_t count, loff_t *ppos)
 {
-	int ret = 0;
-	int size = 0;
+	ssize_t ret = 0;
+	ssize_t size = 0;
 
 	if (!count)
 		return 0;

@@ -639,11 +639,11 @@ static ssize_t acpi_aml_read(struct file *file, char __user *buf,
 	return size > 0 ? size : ret;
 }
 
-static int acpi_aml_write_user(const char __user *buf, int len)
+static ssize_t acpi_aml_write_user(const char __user *buf, size_t len)
 {
-	int ret;
 	struct circ_buf *crc = &acpi_aml_io.in_crc;
-	int n;
+	ssize_t ret;
+	size_t n;
 	char *p;
 
 	ret = acpi_aml_lock_write(crc, ACPI_AML_IN_USER);

@@ -652,7 +652,7 @@ static int acpi_aml_write_user(const char __user *buf, int len)
 	/* sync tail before inserting cmds */
 	smp_mb();
 	p = &crc->buf[crc->head];
-	n = min(len, circ_space_to_end(crc));
+	n = min_t(size_t, len, circ_space_to_end(crc));
 	if (copy_from_user(p, buf, n)) {
 		ret = -EFAULT;
 		goto out;

@@ -663,14 +663,14 @@ static int acpi_aml_write_user(const char __user *buf, int len)
 	ret = n;
 out:
 	acpi_aml_unlock_fifo(ACPI_AML_IN_USER, ret >= 0);
-	return n;
+	return ret;
 }
 
 static ssize_t acpi_aml_write(struct file *file, const char __user *buf,
 			      size_t count, loff_t *ppos)
 {
-	int ret = 0;
-	int size = 0;
+	ssize_t ret = 0;
+	ssize_t size = 0;
 
 	if (!count)
 		return 0;

index 91d7d90c47da..33418dd6768a 100644
@@ -565,6 +565,9 @@ static void acpi_tad_remove(struct platform_device *pdev)
 
 	pm_runtime_get_sync(dev);
 
+	if (dd->capabilities & ACPI_TAD_RT)
+		sysfs_remove_group(&dev->kobj, &acpi_tad_time_attr_group);
+
 	if (dd->capabilities & ACPI_TAD_DC_WAKE)
 		sysfs_remove_group(&dev->kobj, &acpi_tad_dc_attr_group);
 

index fe6d38b43c9a..91241bd6917a 100644
@@ -37,7 +37,7 @@ struct acpi_db_argument_info {
 struct acpi_db_execute_walk {
 	u32 count;
 	u32 max_count;
-	char name_seg[ACPI_NAMESEG_SIZE + 1] ACPI_NONSTRING;
+	char name_seg[ACPI_NAMESEG_SIZE + 1];
 };
 
 #define PARAM_LIST(pl)                  pl

index fa3e0d00d1ca..df2a4ab0e0da 100644
@@ -42,6 +42,10 @@ acpi_status acpi_ev_init_global_lock_handler(void)
 		return_ACPI_STATUS(AE_OK);
 	}
 
+	if (!acpi_gbl_use_global_lock) {
+		return_ACPI_STATUS(AE_OK);
+	}
+
 	/* Attempt installation of the global lock handler */
 
 	status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL,

123 lines not on this page · raw message

212 lines not on this page · raw message

index 123031a757d9..86fa7fbb3548 100644
@@ -248,9 +248,18 @@ void device_links_driver_cleanup(struct device *dev);
 void device_links_no_driver(struct device *dev);
 bool device_links_busy(struct device *dev);
 void device_links_unbind_consumers(struct device *dev);
+bool device_link_flag_is_sync_state_only(u32 flags);
 void fw_devlink_drivers_done(void);
 void fw_devlink_probing_done(void);
 
+#define dev_for_each_link_to_supplier(__link, __dev)	\
+	list_for_each_entry_srcu(__link, &(__dev)->links.suppliers, c_node, \
+				 device_links_read_lock_held())
+
+#define dev_for_each_link_to_consumer(__link, __dev)	\
+	list_for_each_entry_srcu(__link, &(__dev)->links.consumers, s_node, \
+				 device_links_read_lock_held())
+
 /* device pm support */
 void device_pm_move_to_tail(struct device *dev);
 

index d22d6b23e758..a54ec6df1058 100644
@@ -287,7 +287,7 @@ static bool device_is_ancestor(struct device *dev, struct device *target)
 #define DL_MARKER_FLAGS		(DL_FLAG_INFERRED | \
 				 DL_FLAG_CYCLE | \
 				 DL_FLAG_MANAGED)
-static inline bool device_link_flag_is_sync_state_only(u32 flags)
+bool device_link_flag_is_sync_state_only(u32 flags)
 {
 	return (flags & ~DL_MARKER_FLAGS) == DL_FLAG_SYNC_STATE_ONLY;
 }

index c883b01ffbdd..e83503bdc1fd 100644
@@ -40,10 +40,6 @@
 
 typedef int (*pm_callback_t)(struct device *);
 
-#define list_for_each_entry_rcu_locked(pos, head, member) \
-	list_for_each_entry_rcu(pos, head, member, \
-			device_links_read_lock_held())
-
 /*
  * The entries in the dpm_list list are in a depth first order, simply
  * because children are guaranteed to be discovered after parents, and

@@ -281,8 +277,9 @@ static void dpm_wait_for_suppliers(struct device *dev, bool async)
 	 * callbacks freeing the link objects for the links in the list we're
 	 * walking.
 	 */
-	list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node)
-		if (READ_ONCE(link->status) != DL_STATE_DORMANT)
+	dev_for_each_link_to_supplier(link, dev)
+		if (READ_ONCE(link->status) != DL_STATE_DORMANT &&
+		    !device_link_flag_is_sync_state_only(link->flags))
 			dpm_wait(link->supplier, async);
 
 	device_links_read_unlock(idx);

@@ -338,8 +335,9 @@ static void dpm_wait_for_consumers(struct device *dev, bool async)
 	 * continue instead of trying to continue in parallel with its
 	 * unregistration).
 	 */
-	list_for_each_entry_rcu_locked(link, &dev->links.consumers, s_node)
-		if (READ_ONCE(link->status) != DL_STATE_DORMANT)
+	dev_for_each_link_to_consumer(link, dev)
+		if (READ_ONCE(link->status) != DL_STATE_DORMANT &&
+		    !device_link_flag_is_sync_state_only(link->flags))
 			dpm_wait(link->consumer, async);
 
 	device_links_read_unlock(idx);

@@ -675,7 +673,7 @@ static void dpm_async_resume_subordinate(struct device *dev, async_func_t func)
 	idx = device_links_read_lock();
 
 	/* Start processing the device's "async" consumers. */
-	list_for_each_entry_rcu_locked(link, &dev->links.consumers, s_node)
+	dev_for_each_link_to_consumer(link, dev)
 		if (READ_ONCE(link->status) != DL_STATE_DORMANT)
 			dpm_async_with_cleanup(link->consumer, func);
 

@@ -1342,7 +1340,7 @@ static void dpm_async_suspend_superior(struct device *dev, async_func_t func)
 	idx = device_links_read_lock();
 
 	/* Start processing the device's "async" suppliers. */
-	list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node)
+	dev_for_each_link_to_supplier(link, dev)
 		if (READ_ONCE(link->status) != DL_STATE_DORMANT)
 			dpm_async_with_cleanup(link->supplier, func);
 

@@ -1396,7 +1394,7 @@ static void dpm_superior_set_must_resume(struct device *dev)
 
 	idx = device_links_read_lock();
 
-	list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node)
+	dev_for_each_link_to_supplier(link, dev)
 		link->supplier->power.must_resume = true;
 
 	device_links_read_unlock(idx);

@@ -1825,7 +1823,7 @@ static void dpm_clear_superiors_direct_complete(struct device *dev)
 
 	idx = device_links_read_lock();
 
-	list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node) {
+	dev_for_each_link_to_supplier(link, dev) {
 		spin_lock_irq(&link->supplier->power.lock);
 		link->supplier->power.direct_complete = false;
 		spin_unlock_irq(&link->supplier->power.lock);

@@ -2077,7 +2075,7 @@ static bool device_prepare_smart_suspend(struct device *dev)
 
 	idx = device_links_read_lock();
 
-	list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node) {
+	dev_for_each_link_to_supplier(link, dev) {
 		if (!device_link_test(link, DL_FLAG_PM_RUNTIME))
 			continue;
 

index 3e84dc4122de..7420b9851fe0 100644
@@ -1903,8 +1903,7 @@ void pm_runtime_get_suppliers(struct device *dev)
 
 	idx = device_links_read_lock();
 
-	list_for_each_entry_rcu(link, &dev->links.suppliers, c_node,
-				device_links_read_lock_held())
+	dev_for_each_link_to_supplier(link, dev)
 		if (device_link_test(link, DL_FLAG_PM_RUNTIME)) {
 			link->supplier_preactivated = true;
 			pm_runtime_get_sync(link->supplier);

index 053a086d547e..94ec7f747f36 100644
@@ -551,8 +551,10 @@ static int loop_change_fd(struct loop_device *lo, struct block_device *bdev,
 		return -EBADF;
 
 	error = loop_check_backing_file(file);
-	if (error)
+	if (error) {
+		fput(file);
 		return error;
+	}
 
 	/* suppress uevents while reconfiguring the device */
 	dev_set_uevent_suppress(disk_to_dev(lo->lo_disk), 1);

@@ -993,8 +995,10 @@ static int loop_configure(struct loop_device *lo, blk_mode_t mode,
 		return -EBADF;
 
 	error = loop_check_backing_file(file);
-	if (error)
+	if (error) {
+		fput(file);
 		return error;
+	}
 
 	is_loop = is_loop_device(file);
 

index b3eafcf2a2c5..cdea24e92919 100644
@@ -403,17 +403,13 @@ static int mhi_ep_read_channel(struct mhi_ep_cntrl *mhi_cntrl,
 {
 	struct mhi_ep_chan *mhi_chan = &mhi_cntrl->mhi_chan[ring->ch_id];
 	struct device *dev = &mhi_cntrl->mhi_dev->dev;
-	size_t tr_len, read_offset, write_offset;
+	size_t tr_len, read_offset;
 	struct mhi_ep_buf_info buf_info = {};
 	u32 len = MHI_EP_DEFAULT_MTU;
 	struct mhi_ring_element *el;
-	bool tr_done = false;
 	void *buf_addr;
-	u32 buf_left;
 	int ret;
 
-	buf_left = len;
-
 	do {
 		/* Don't process the transfer ring if the channel is not in RUNNING state */
 		if (mhi_chan->state != MHI_CH_STATE_RUNNING) {

@@ -426,24 +422,23 @@ static int mhi_ep_read_channel(struct mhi_ep_cntrl *mhi_cntrl,
 		/* Check if there is data pending to be read from previous read operation */
 		if (mhi_chan->tre_bytes_left) {
 			dev_dbg(dev, "TRE bytes remaining: %u\n", mhi_chan->tre_bytes_left);
-			tr_len = min(buf_left, mhi_chan->tre_bytes_left);
+			tr_len = min(len, mhi_chan->tre_bytes_left);
 		} else {
 			mhi_chan->tre_loc = MHI_TRE_DATA_GET_PTR(el);
 			mhi_chan->tre_size = MHI_TRE_DATA_GET_LEN(el);
 			mhi_chan->tre_bytes_left = mhi_chan->tre_size;
 
-			tr_len = min(buf_left, mhi_chan->tre_size);
+			tr_len = min(len, mhi_chan->tre_size);
 		}
 
 		read_offset = mhi_chan->tre_size - mhi_chan->tre_bytes_left;
-		write_offset = len - buf_left;
 
 		buf_addr = kmem_cache_zalloc(mhi_cntrl->tre_buf_cache, GFP_KERNEL);
 		if (!buf_addr)
 			return -ENOMEM;
 
 		buf_info.host_addr = mhi_chan->tre_loc + read_offset;
-		buf_info.dev_addr = buf_addr + write_offset;
+		buf_info.dev_addr = buf_addr;
 		buf_info.size = tr_len;
 		buf_info.cb = mhi_ep_read_completion;
 		buf_info.cb_buf = buf_addr;

@@ -459,16 +454,12 @@ static int mhi_ep_read_channel(struct mhi_ep_cntrl *mhi_cntrl,
 			goto err_free_buf_addr;
 		}
 
-		buf_left -= tr_len;
 		mhi_chan->tre_bytes_left -= tr_len;
 
-		if (!mhi_chan->tre_bytes_left) {
-			if (MHI_TRE_DATA_GET_IEOT(el))
-				tr_done = true;
-
+		if (!mhi_chan->tre_bytes_left)
 			mhi_chan->rd_offset = (mhi_chan->rd_offset + 1) % ring->ring_size;
-		}
-	} while (buf_left && !tr_done);
+	/* Read until the some buffer is left or the ring becomes not empty */
+	} while (!mhi_ep_queue_is_empty(mhi_chan->mhi_dev, DMA_TO_DEVICE));
 
 	return 0;
 

@@ -502,15 +493,11 @@ static int mhi_ep_process_ch_ring(struct mhi_ep_ring *ring)
 		mhi_chan->xfer_cb(mhi_chan->mhi_dev, &result);
 	} else {
 		/* UL channel */
-		do {
-			ret = mhi_ep_read_channel(mhi_cntrl, ring);
-			if (ret < 0) {
-				dev_err(&mhi_chan->mhi_dev->dev, "Failed to read channel\n");
-				return ret;
-			}
-
-			/* Read until the ring becomes empty */
-		} while (!mhi_ep_queue_is_empty(mhi_chan->mhi_dev, DMA_TO_DEVICE));
+		ret = mhi_ep_read_channel(mhi_cntrl, ring);
+		if (ret < 0) {
+			dev_err(&mhi_chan->mhi_dev->dev, "Failed to read channel\n");
+			return ret;
+		}
 	}
 
 	return 0;

index 7f72aab38ce9..099be8dd1900 100644
@@ -194,7 +194,6 @@ static void mhi_deinit_free_irq(struct mhi_controller *mhi_cntrl)
 static int mhi_init_irq_setup(struct mhi_controller *mhi_cntrl)
 {
 	struct mhi_event *mhi_event = mhi_cntrl->mhi_event;
-	struct device *dev = &mhi_cntrl->mhi_dev->dev;
 	unsigned long irq_flags = IRQF_SHARED | IRQF_NO_SUSPEND;
 	int i, ret;
 

@@ -221,7 +220,7 @@ static int mhi_init_irq_setup(struct mhi_controller *mhi_cntrl)
 			continue;
 
 		if (mhi_event->irq >= mhi_cntrl->nr_irqs) {
-			dev_err(dev, "irq %d not available for event ring\n",
+			dev_err(mhi_cntrl->cntrl_dev, "irq %d not available for event ring\n",
 				mhi_event->irq);
 			ret = -EINVAL;
 			goto error_request;

@@ -232,7 +231,7 @@ static int mhi_init_irq_setup(struct mhi_controller *mhi_cntrl)
 				  irq_flags,
 				  "mhi", mhi_event);
 		if (ret) {
-			dev_err(dev, "Error requesting irq:%d for ev:%d\n",
+			dev_err(mhi_cntrl->cntrl_dev, "Error requesting irq:%d for ev:%d\n",
 				mhi_cntrl->irq[mhi_event->irq], i);
 			goto error_request;
 		}

index 3388a5d1462c..91b95422b263 100644
@@ -174,6 +174,7 @@ struct irq_domain *cdx_msi_domain_init(struct device *dev)
 	}
 
 	parent = irq_find_matching_fwnode(of_fwnode_handle(parent_node), DOMAIN_BUS_NEXUS);
+	of_node_put(parent_node);
 	if (!parent || !msi_get_domain_info(parent)) {
 		dev_err(dev, "unable to locate ITS domain\n");
 		return NULL;

index ecfcb50302f6..efda90dcf5b3 100644
@@ -122,10 +122,10 @@ struct si_sm_data {
 	unsigned long  error0_timeout;
 };
 
-static unsigned int init_kcs_data_with_state(struct si_sm_data *kcs,
-				  struct si_sm_io *io, enum kcs_states state)
+static unsigned int init_kcs_data(struct si_sm_data *kcs,
+				  struct si_sm_io *io)
 {
-	kcs->state = state;
+	kcs->state = KCS_IDLE;
 	kcs->io = io;
 	kcs->write_pos = 0;
 	kcs->write_count = 0;

@@ -140,12 +140,6 @@ static unsigned int init_kcs_data_with_state(struct si_sm_data *kcs,
 	return 2;
 }
 
-static unsigned int init_kcs_data(struct si_sm_data *kcs,
-				  struct si_sm_io *io)
-{
-	return init_kcs_data_with_state(kcs, io, KCS_IDLE);
-}
-
 static inline unsigned char read_status(struct si_sm_data *kcs)
 {
 	return kcs->io->inputb(kcs->io, 1);

@@ -276,7 +270,7 @@ static int start_kcs_transaction(struct si_sm_data *kcs, unsigned char *data,
 	if (size > MAX_KCS_WRITE_SIZE)
 		return IPMI_REQ_LEN_EXCEEDED_ERR;
 
-	if (kcs->state != KCS_IDLE) {
+	if ((kcs->state != KCS_IDLE) && (kcs->state != KCS_HOSED)) {
 		dev_warn(kcs->io->dev, "KCS in invalid state %d\n", kcs->state);
 		return IPMI_NOT_IN_MY_STATE_ERR;
 	}

@@ -501,7 +495,7 @@ static enum si_sm_result kcs_event(struct si_sm_data *kcs, long time)
 	}
 
 	if (kcs->state == KCS_HOSED) {
-		init_kcs_data_with_state(kcs, kcs->io, KCS_ERROR0);
+		init_kcs_data(kcs, kcs->io);
 		return SI_SM_HOSED;
 	}
 

814 lines not on this page · raw message

index 4b12c4b9da8b..8954a8660ffc 100644
@@ -978,8 +978,8 @@ static int tpm_tis_probe_irq_single(struct tpm_chip *chip, u32 intmask,
 	 * will call disable_irq which undoes all of the above.
 	 */
 	if (!(chip->flags & TPM_CHIP_FLAG_IRQ)) {
-		tpm_tis_write8(priv, original_int_vec,
-			       TPM_INT_VECTOR(priv->locality));
+		tpm_tis_write8(priv, TPM_INT_VECTOR(priv->locality),
+			       original_int_vec);
 		rc = -1;
 	}
 

index c173a44c800a..629f050a855a 100644
@@ -279,8 +279,11 @@ static int clk_sam9x5_peripheral_determine_rate(struct clk_hw *hw,
 	long best_diff = LONG_MIN;
 	u32 shift;
 
-	if (periph->id < PERIPHERAL_ID_MIN || !periph->range.max)
-		return parent_rate;
+	if (periph->id < PERIPHERAL_ID_MIN || !periph->range.max) {
+		req->rate = parent_rate;
+
+		return 0;
+	}
 
 	/* Fist step: check the available dividers. */
 	for (shift = 0; shift <= PERIPHERAL_MAX_SHIFT; shift++) {

index bb648a88e43a..ad47fdb23460 100644
@@ -103,7 +103,7 @@ static const struct mtk_gate infra_ao_clks[] = {
 	GATE_INFRA_AO0(CLK_INFRA_AO_CQ_DMA_FPC, "infra_ao_cq_dma_fpc", "fpc", 28),
 	GATE_INFRA_AO0(CLK_INFRA_AO_UART5, "infra_ao_uart5", "top_uart", 29),
 	/* INFRA_AO1 */
-	GATE_INFRA_AO1(CLK_INFRA_AO_HDMI_26M, "infra_ao_hdmi_26m", "clk26m", 0),
+	GATE_INFRA_AO1(CLK_INFRA_AO_HDMI_26M, "infra_ao_hdmi_26m", "top_hdmi_xtal", 0),
 	GATE_INFRA_AO1(CLK_INFRA_AO_SPI0, "infra_ao_spi0", "top_spi", 1),
 	GATE_INFRA_AO1(CLK_INFRA_AO_MSDC0, "infra_ao_msdc0", "top_msdc50_0_hclk", 2),
 	GATE_INFRA_AO1(CLK_INFRA_AO_MSDC1, "infra_ao_msdc1", "top_axi", 4),

index 60990296450b..9a12e58230be 100644
@@ -146,9 +146,7 @@ static int mtk_clk_mux_set_parent_setclr_lock(struct clk_hw *hw, u8 index)
 static int mtk_clk_mux_determine_rate(struct clk_hw *hw,
 				      struct clk_rate_request *req)
 {
-	struct mtk_clk_mux *mux = to_mtk_clk_mux(hw);
-
-	return clk_mux_determine_rate_flags(hw, req, mux->data->flags);
+	return clk_mux_determine_rate_flags(hw, req, 0);
 }
 
 const struct clk_ops mtk_mux_clr_set_upd_ops = {

index 81efa885069b..b9e204d63a97 100644
@@ -370,23 +370,25 @@ static unsigned long lpc18xx_pll0_recalc_rate(struct clk_hw *hw,
 	return 0;
 }
 
-static long lpc18xx_pll0_round_rate(struct clk_hw *hw, unsigned long rate,
-				    unsigned long *prate)
+static int lpc18xx_pll0_determine_rate(struct clk_hw *hw,
+				       struct clk_rate_request *req)
 {
 	unsigned long m;
 
-	if (*prate < rate) {
+	if (req->best_parent_rate < req->rate) {
 		pr_warn("%s: pll dividers not supported\n", __func__);
 		return -EINVAL;
 	}
 
-	m = DIV_ROUND_UP_ULL(*prate, rate * 2);
-	if (m <= 0 && m > LPC18XX_PLL0_MSEL_MAX) {
-		pr_warn("%s: unable to support rate %lu\n", __func__, rate);
+	m = DIV_ROUND_UP_ULL(req->best_parent_rate, req->rate * 2);
+	if (m == 0 || m > LPC18XX_PLL0_MSEL_MAX) {
+		pr_warn("%s: unable to support rate %lu\n", __func__, req->rate);
 		return -EINVAL;
 	}
 
-	return 2 * *prate * m;
+	req->rate = 2 * req->best_parent_rate * m;
+
+	return 0;
 }
 
 static int lpc18xx_pll0_set_rate(struct clk_hw *hw, unsigned long rate,

@@ -402,7 +404,7 @@ static int lpc18xx_pll0_set_rate(struct clk_hw *hw, unsigned long rate,
 	}
 
 	m = DIV_ROUND_UP_ULL(parent_rate, rate * 2);
-	if (m <= 0 && m > LPC18XX_PLL0_MSEL_MAX) {
+	if (m == 0 || m > LPC18XX_PLL0_MSEL_MAX) {
 		pr_warn("%s: unable to support rate %lu\n", __func__, rate);
 		return -EINVAL;
 	}

@@ -443,7 +445,7 @@ static int lpc18xx_pll0_set_rate(struct clk_hw *hw, unsigned long rate,
 
 static const struct clk_ops lpc18xx_pll0_ops = {
 	.recalc_rate	= lpc18xx_pll0_recalc_rate,
-	.round_rate	= lpc18xx_pll0_round_rate,
+	.determine_rate = lpc18xx_pll0_determine_rate,
 	.set_rate	= lpc18xx_pll0_set_rate,
 };
 

index 37c3008e6c1b..121591886774 100644
@@ -277,8 +277,8 @@ static int qcom_cc_icc_register(struct device *dev,
 		icd[i].slave_id = desc->icc_hws[i].slave_id;
 		hws = &desc->clks[desc->icc_hws[i].clk_id]->hw;
 		icd[i].clk = devm_clk_hw_get_clk(dev, hws, "icc");
-		if (!icd[i].clk)
-			return dev_err_probe(dev, -ENOENT,
+		if (IS_ERR(icd[i].clk))
+			return dev_err_probe(dev, PTR_ERR(icd[i].clk),
 					     "(%d) clock entry is null\n", i);
 		icd[i].name = clk_hw_get_name(hws);
 	}

index ff61769a0807..a367e1f55622 100644
@@ -29,6 +29,10 @@ static struct clk_branch tcsr_edp_clkref_en = {
 		.enable_mask = BIT(0),
 		.hw.init = &(const struct clk_init_data) {
 			.name = "tcsr_edp_clkref_en",
+			.parent_data = &(const struct clk_parent_data){
+				.index = DT_BI_TCXO_PAD,
+			},
+			.num_parents = 1,
 			.ops = &clk_branch2_ops,
 		},
 	},

index ed0661997928..3b28edfabc34 100644
@@ -284,7 +284,8 @@ static const struct rzg2l_mod_clk r9a08g045_mod_clks[] = {
 					MSTOP(BUS_MCPU2, BIT(5))),
 	DEF_MOD("scif5_clk_pck",	R9A08G045_SCIF5_CLK_PCK, R9A08G045_CLK_P0, 0x584, 5,
 					MSTOP(BUS_MCPU3, BIT(4))),
-	DEF_MOD("gpio_hclk",		R9A08G045_GPIO_HCLK, R9A08G045_OSCCLK, 0x598, 0, 0),
+	DEF_MOD("gpio_hclk",		R9A08G045_GPIO_HCLK, R9A08G045_OSCCLK, 0x598, 0,
+					MSTOP(BUS_PERI_CPU, BIT(6))),
 	DEF_MOD("adc_adclk",		R9A08G045_ADC_ADCLK, R9A08G045_CLK_TSU, 0x5a8, 0,
 					MSTOP(BUS_MCPU2, BIT(14))),
 	DEF_MOD("adc_pclk",		R9A08G045_ADC_PCLK, R9A08G045_CLK_TSU, 0x5a8, 1,

index 5ff6ee1f7d4b..de1cf7ba45b7 100644
@@ -1082,6 +1082,7 @@ static int __init cpg_mssr_reserved_init(struct cpg_mssr_priv *priv,
 
 		of_for_each_phandle(&it, rc, node, "clocks", "#clock-cells", -1) {
 			int idx;
+			unsigned int *new_ids;
 
 			if (it.node != priv->np)
 				continue;

@@ -1092,11 +1093,13 @@ static int __init cpg_mssr_reserved_init(struct cpg_mssr_priv *priv,
 			if (args[0] != CPG_MOD)
 				continue;
 
-			ids = krealloc_array(ids, (num + 1), sizeof(*ids), GFP_KERNEL);
-			if (!ids) {
+			new_ids = krealloc_array(ids, (num + 1), sizeof(*ids), GFP_KERNEL);
+			if (!new_ids) {
 				of_node_put(it.node);
+				kfree(ids);
 				return -ENOMEM;
 			}
+			ids = new_ids;
 
 			if (priv->reg_layout == CLK_REG_LAYOUT_RZ_A)
 				idx = MOD_CLK_PACK_10(args[1]);	/* for DEF_MOD_STB() */

136 lines not on this page · raw message

index b2323cb8eddc..77a2586dbe00 100644
@@ -635,7 +635,7 @@ static int tegra_bpmp_register_clocks(struct tegra_bpmp *bpmp,
 
 	bpmp->num_clocks = count;
 
-	bpmp->clocks = devm_kcalloc(bpmp->dev, count, sizeof(struct tegra_bpmp_clk), GFP_KERNEL);
+	bpmp->clocks = devm_kcalloc(bpmp->dev, count, sizeof(*bpmp->clocks), GFP_KERNEL);
 	if (!bpmp->clocks)
 		return -ENOMEM;
 

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