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-rw-r--r--arch/arm/Kconfig8
-rw-r--r--arch/arm/include/asm/kvm_emulate.h10
-rw-r--r--arch/arm/include/asm/kvm_host.h18
-rw-r--r--arch/arm/include/asm/kvm_hyp.h13
-rw-r--r--arch/arm/include/asm/pgalloc.h41
-rw-r--r--arch/arm/include/asm/ptdump.h9
-rw-r--r--arch/arm/include/uapi/asm/kvm.h12
-rw-r--r--arch/arm/kernel/efi.c3
-rw-r--r--arch/arm/mach-omap1/clock.c64
-rw-r--r--arch/arm/mach-omap1/pm.c7
-rw-r--r--arch/arm/mach-omap2/pm-debug.c15
-rw-r--r--arch/arm/mm/dma-mapping-nommu.c24
-rw-r--r--arch/arm/mm/dma-mapping.c23
-rw-r--r--arch/arm/mm/dump.c4
-rw-r--r--arch/arm/mm/mmu.c2
-rw-r--r--arch/arm/mm/pageattr.c3
-rw-r--r--arch/arm/mm/ptdump_debugfs.c8
17 files changed, 89 insertions, 175 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index d850feb5cc0a..2bf1ce39a96d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -75,6 +75,7 @@ config ARM
select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
select HAVE_EXIT_THREAD
+ select HAVE_FAST_GUP if ARM_LPAE
select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL
select HAVE_FUNCTION_GRAPH_TRACER if !THUMB2_KERNEL && !CC_IS_CLANG
select HAVE_FUNCTION_TRACER if !XIP_KERNEL
@@ -1622,16 +1623,9 @@ config ARCH_SPARSEMEM_ENABLE
config ARCH_SPARSEMEM_DEFAULT
def_bool ARCH_SPARSEMEM_ENABLE
-config ARCH_SELECT_MEMORY_MODEL
- def_bool ARCH_SPARSEMEM_ENABLE
-
config HAVE_ARCH_PFN_VALID
def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
-config HAVE_GENERIC_GUP
- def_bool y
- depends on ARM_LPAE
-
config HIGHMEM
bool "High Memory Support"
depends on MMU
diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h
index 6b7644a383f6..40002416efec 100644
--- a/arch/arm/include/asm/kvm_emulate.h
+++ b/arch/arm/include/asm/kvm_emulate.h
@@ -271,6 +271,16 @@ static inline unsigned long kvm_vcpu_get_mpidr_aff(struct kvm_vcpu *vcpu)
return vcpu_cp15(vcpu, c0_MPIDR) & MPIDR_HWID_BITMASK;
}
+static inline bool kvm_arm_get_vcpu_workaround_2_flag(struct kvm_vcpu *vcpu)
+{
+ return false;
+}
+
+static inline void kvm_arm_set_vcpu_workaround_2_flag(struct kvm_vcpu *vcpu,
+ bool flag)
+{
+}
+
static inline void kvm_vcpu_set_be(struct kvm_vcpu *vcpu)
{
*vcpu_cpsr(vcpu) |= PSR_E_BIT;
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index f80418ddeb60..8a37c8e89777 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -15,7 +15,6 @@
#include <asm/kvm_asm.h>
#include <asm/kvm_mmio.h>
#include <asm/fpstate.h>
-#include <asm/smp_plat.h>
#include <kvm/arm_arch_timer.h>
#define __KVM_HAVE_ARCH_INTC_INITIALIZED
@@ -147,11 +146,10 @@ struct kvm_host_data {
typedef struct kvm_host_data kvm_host_data_t;
-static inline void kvm_init_host_cpu_context(struct kvm_cpu_context *cpu_ctxt,
- int cpu)
+static inline void kvm_init_host_cpu_context(struct kvm_cpu_context *cpu_ctxt)
{
/* The host's MPIDR is immutable, so let's set it up at boot time */
- cpu_ctxt->cp15[c0_MPIDR] = cpu_logical_map(cpu);
+ cpu_ctxt->cp15[c0_MPIDR] = read_cpuid_mpidr();
}
struct vcpu_reset_state {
@@ -362,7 +360,11 @@ static inline void kvm_vcpu_pmu_restore_host(struct kvm_vcpu *vcpu) {}
static inline void kvm_arm_vhe_guest_enter(void) {}
static inline void kvm_arm_vhe_guest_exit(void) {}
-static inline bool kvm_arm_harden_branch_predictor(void)
+#define KVM_BP_HARDEN_UNKNOWN -1
+#define KVM_BP_HARDEN_WA_NEEDED 0
+#define KVM_BP_HARDEN_NOT_REQUIRED 1
+
+static inline int kvm_arm_harden_branch_predictor(void)
{
switch(read_cpuid_part()) {
#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
@@ -370,10 +372,12 @@ static inline bool kvm_arm_harden_branch_predictor(void)
case ARM_CPU_PART_CORTEX_A12:
case ARM_CPU_PART_CORTEX_A15:
case ARM_CPU_PART_CORTEX_A17:
- return true;
+ return KVM_BP_HARDEN_WA_NEEDED;
#endif
+ case ARM_CPU_PART_CORTEX_A7:
+ return KVM_BP_HARDEN_NOT_REQUIRED;
default:
- return false;
+ return KVM_BP_HARDEN_UNKNOWN;
}
}
diff --git a/arch/arm/include/asm/kvm_hyp.h b/arch/arm/include/asm/kvm_hyp.h
index 71ac1c8d101c..40e9034db601 100644
--- a/arch/arm/include/asm/kvm_hyp.h
+++ b/arch/arm/include/asm/kvm_hyp.h
@@ -82,13 +82,14 @@
#define VFP_FPEXC __ACCESS_VFP(FPEXC)
/* AArch64 compatibility macros, only for the timer so far */
-#define read_sysreg_el0(r) read_sysreg(r##_el0)
-#define write_sysreg_el0(v, r) write_sysreg(v, r##_el0)
+#define read_sysreg_el0(r) read_sysreg(r##_EL0)
+#define write_sysreg_el0(v, r) write_sysreg(v, r##_EL0)
+
+#define SYS_CNTP_CTL_EL0 CNTP_CTL
+#define SYS_CNTP_CVAL_EL0 CNTP_CVAL
+#define SYS_CNTV_CTL_EL0 CNTV_CTL
+#define SYS_CNTV_CVAL_EL0 CNTV_CVAL
-#define cntp_ctl_el0 CNTP_CTL
-#define cntp_cval_el0 CNTP_CVAL
-#define cntv_ctl_el0 CNTV_CTL
-#define cntv_cval_el0 CNTV_CVAL
#define cntvoff_el2 CNTVOFF
#define cnthctl_el2 CNTHCTL
diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
index c038cff6fdd3..a2a68b751971 100644
--- a/arch/arm/include/asm/pgalloc.h
+++ b/arch/arm/include/asm/pgalloc.h
@@ -54,8 +54,6 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
extern pgd_t *pgd_alloc(struct mm_struct *mm);
extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
-#define PGALLOC_GFP (GFP_KERNEL | __GFP_ZERO)
-
static inline void clean_pte_table(pte_t *pte)
{
clean_dcache_area(pte + PTE_HWTABLE_PTRS, PTE_HWTABLE_SIZE);
@@ -77,54 +75,41 @@ static inline void clean_pte_table(pte_t *pte)
* | h/w pt 1 |
* +------------+
*/
+
+#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL
+#define __HAVE_ARCH_PTE_ALLOC_ONE
+#include <asm-generic/pgalloc.h>
+
static inline pte_t *
pte_alloc_one_kernel(struct mm_struct *mm)
{
- pte_t *pte;
+ pte_t *pte = __pte_alloc_one_kernel(mm);
- pte = (pte_t *)__get_free_page(PGALLOC_GFP);
if (pte)
clean_pte_table(pte);
return pte;
}
+#ifdef CONFIG_HIGHPTE
+#define PGTABLE_HIGHMEM __GFP_HIGHMEM
+#else
+#define PGTABLE_HIGHMEM 0
+#endif
+
static inline pgtable_t
pte_alloc_one(struct mm_struct *mm)
{
struct page *pte;
-#ifdef CONFIG_HIGHPTE
- pte = alloc_pages(PGALLOC_GFP | __GFP_HIGHMEM, 0);
-#else
- pte = alloc_pages(PGALLOC_GFP, 0);
-#endif
+ pte = __pte_alloc_one(mm, GFP_PGTABLE_USER | PGTABLE_HIGHMEM);
if (!pte)
return NULL;
if (!PageHighMem(pte))
clean_pte_table(page_address(pte));
- if (!pgtable_page_ctor(pte)) {
- __free_page(pte);
- return NULL;
- }
return pte;
}
-/*
- * Free one PTE table.
- */
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
- if (pte)
- free_page((unsigned long)pte);
-}
-
-static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
-{
- pgtable_page_dtor(pte);
- __free_page(pte);
-}
-
static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte,
pmdval_t prot)
{
diff --git a/arch/arm/include/asm/ptdump.h b/arch/arm/include/asm/ptdump.h
index 3ebf9718288d..0c2d3d0d4cc6 100644
--- a/arch/arm/include/asm/ptdump.h
+++ b/arch/arm/include/asm/ptdump.h
@@ -21,13 +21,10 @@ struct ptdump_info {
void ptdump_walk_pgd(struct seq_file *s, struct ptdump_info *info);
#ifdef CONFIG_ARM_PTDUMP_DEBUGFS
-int ptdump_debugfs_register(struct ptdump_info *info, const char *name);
+void ptdump_debugfs_register(struct ptdump_info *info, const char *name);
#else
-static inline int ptdump_debugfs_register(struct ptdump_info *info,
- const char *name)
-{
- return 0;
-}
+static inline void ptdump_debugfs_register(struct ptdump_info *info,
+ const char *name) { }
#endif /* CONFIG_ARM_PTDUMP_DEBUGFS */
void ptdump_check_wx(void);
diff --git a/arch/arm/include/uapi/asm/kvm.h b/arch/arm/include/uapi/asm/kvm.h
index 4602464ebdfb..a4217c1a5d01 100644
--- a/arch/arm/include/uapi/asm/kvm.h
+++ b/arch/arm/include/uapi/asm/kvm.h
@@ -214,6 +214,18 @@ struct kvm_vcpu_events {
#define KVM_REG_ARM_FW_REG(r) (KVM_REG_ARM | KVM_REG_SIZE_U64 | \
KVM_REG_ARM_FW | ((r) & 0xffff))
#define KVM_REG_ARM_PSCI_VERSION KVM_REG_ARM_FW_REG(0)
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1 KVM_REG_ARM_FW_REG(1)
+ /* Higher values mean better protection. */
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_AVAIL 0
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_AVAIL 1
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_REQUIRED 2
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2 KVM_REG_ARM_FW_REG(2)
+ /* Higher values mean better protection. */
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_AVAIL 0
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_UNKNOWN 1
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_AVAIL 2
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_REQUIRED 3
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_ENABLED (1U << 4)
/* Device Control API: ARM VGIC */
#define KVM_DEV_ARM_VGIC_GRP_ADDR 0
diff --git a/arch/arm/kernel/efi.c b/arch/arm/kernel/efi.c
index ed005870671a..e57dbcc89123 100644
--- a/arch/arm/kernel/efi.c
+++ b/arch/arm/kernel/efi.c
@@ -8,8 +8,7 @@
#include <asm/mach/map.h>
#include <asm/mmu_context.h>
-static int __init set_permissions(pte_t *ptep, pgtable_t token,
- unsigned long addr, void *data)
+static int __init set_permissions(pte_t *ptep, unsigned long addr, void *data)
{
efi_memory_desc_t *md = data;
pte_t pte = *ptep;
diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
index 406fd2a9a88f..bd5be82101f3 100644
--- a/arch/arm/mach-omap1/clock.c
+++ b/arch/arm/mach-omap1/clock.c
@@ -987,84 +987,44 @@ static int debug_clock_show(struct seq_file *s, void *unused)
DEFINE_SHOW_ATTRIBUTE(debug_clock);
-static int clk_debugfs_register_one(struct clk *c)
+static void clk_debugfs_register_one(struct clk *c)
{
- int err;
struct dentry *d;
struct clk *pa = c->parent;
d = debugfs_create_dir(c->name, pa ? pa->dent : clk_debugfs_root);
- if (!d)
- return -ENOMEM;
c->dent = d;
- d = debugfs_create_u8("usecount", S_IRUGO, c->dent, &c->usecount);
- if (!d) {
- err = -ENOMEM;
- goto err_out;
- }
- d = debugfs_create_ulong("rate", S_IRUGO, c->dent, &c->rate);
- if (!d) {
- err = -ENOMEM;
- goto err_out;
- }
- d = debugfs_create_x8("flags", S_IRUGO, c->dent, &c->flags);
- if (!d) {
- err = -ENOMEM;
- goto err_out;
- }
- return 0;
-
-err_out:
- debugfs_remove_recursive(c->dent);
- return err;
+ debugfs_create_u8("usecount", S_IRUGO, c->dent, &c->usecount);
+ debugfs_create_ulong("rate", S_IRUGO, c->dent, &c->rate);
+ debugfs_create_x8("flags", S_IRUGO, c->dent, &c->flags);
}
-static int clk_debugfs_register(struct clk *c)
+static void clk_debugfs_register(struct clk *c)
{
- int err;
struct clk *pa = c->parent;
- if (pa && !pa->dent) {
- err = clk_debugfs_register(pa);
- if (err)
- return err;
- }
+ if (pa && !pa->dent)
+ clk_debugfs_register(pa);
- if (!c->dent) {
- err = clk_debugfs_register_one(c);
- if (err)
- return err;
- }
- return 0;
+ if (!c->dent)
+ clk_debugfs_register_one(c);
}
static int __init clk_debugfs_init(void)
{
struct clk *c;
struct dentry *d;
- int err;
d = debugfs_create_dir("clock", NULL);
- if (!d)
- return -ENOMEM;
clk_debugfs_root = d;
- list_for_each_entry(c, &clocks, node) {
- err = clk_debugfs_register(c);
- if (err)
- goto err_out;
- }
+ list_for_each_entry(c, &clocks, node)
+ clk_debugfs_register(c);
- d = debugfs_create_file("summary", S_IRUGO,
- d, NULL, &debug_clock_fops);
- if (!d)
- return -ENOMEM;
+ debugfs_create_file("summary", S_IRUGO, d, NULL, &debug_clock_fops);
return 0;
-err_out:
- debugfs_remove_recursive(clk_debugfs_root);
- return err;
}
late_initcall(clk_debugfs_init);
diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index 998075d3ef86..d068958d6f8a 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -539,11 +539,8 @@ static void omap_pm_init_debugfs(void)
struct dentry *d;
d = debugfs_create_dir("pm_debug", NULL);
- if (!d)
- return;
-
- (void) debugfs_create_file("omap_pm", S_IWUSR | S_IRUGO,
- d, NULL, &omap_pm_debug_fops);
+ debugfs_create_file("omap_pm", S_IWUSR | S_IRUGO, d, NULL,
+ &omap_pm_debug_fops);
}
#endif /* CONFIG_DEBUG_FS */
diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
index fe6ec9b580b9..fceb1e525d26 100644
--- a/arch/arm/mach-omap2/pm-debug.c
+++ b/arch/arm/mach-omap2/pm-debug.c
@@ -190,9 +190,8 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *dir)
return 0;
d = debugfs_create_dir(pwrdm->name, (struct dentry *)dir);
- if (d)
- (void) debugfs_create_file("suspend", S_IRUGO|S_IWUSR, d,
- (void *)pwrdm, &pwrdm_suspend_fops);
+ debugfs_create_file("suspend", S_IRUGO|S_IWUSR, d, pwrdm,
+ &pwrdm_suspend_fops);
return 0;
}
@@ -230,16 +229,14 @@ static int __init pm_dbg_init(void)
return 0;
d = debugfs_create_dir("pm_debug", NULL);
- if (!d)
- return -EINVAL;
- (void) debugfs_create_file("count", 0444, d, NULL, &pm_dbg_counters_fops);
- (void) debugfs_create_file("time", 0444, d, NULL, &pm_dbg_timers_fops);
+ debugfs_create_file("count", 0444, d, NULL, &pm_dbg_counters_fops);
+ debugfs_create_file("time", 0444, d, NULL, &pm_dbg_timers_fops);
pwrdm_for_each(pwrdms_setup, (void *)d);
- (void) debugfs_create_file("enable_off_mode", S_IRUGO | S_IWUSR, d,
- &enable_off_mode, &pm_dbg_option_fops);
+ debugfs_create_file("enable_off_mode", S_IRUGO | S_IWUSR, d,
+ &enable_off_mode, &pm_dbg_option_fops);
pm_dbg_init_done = 1;
return 0;
diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index 1aea01ba1262..52b82559d99b 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -35,18 +35,7 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
unsigned long attrs)
{
- void *ret;
-
- /*
- * Try generic allocator first if we are advertised that
- * consistency is not required.
- */
-
- if (attrs & DMA_ATTR_NON_CONSISTENT)
- return dma_direct_alloc_pages(dev, size, dma_handle, gfp,
- attrs);
-
- ret = dma_alloc_from_global_coherent(size, dma_handle);
+ void *ret = dma_alloc_from_global_coherent(size, dma_handle);
/*
* dma_alloc_from_global_coherent() may fail because:
@@ -66,16 +55,9 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
void *cpu_addr, dma_addr_t dma_addr,
unsigned long attrs)
{
- if (attrs & DMA_ATTR_NON_CONSISTENT) {
- dma_direct_free_pages(dev, size, cpu_addr, dma_addr, attrs);
- } else {
- int ret = dma_release_from_global_coherent(get_order(size),
- cpu_addr);
-
- WARN_ON_ONCE(ret == 0);
- }
+ int ret = dma_release_from_global_coherent(get_order(size), cpu_addr);
- return;
+ WARN_ON_ONCE(ret == 0);
}
static int arm_nommu_dma_mmap(struct device *dev, struct vm_area_struct *vma,
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 439bb6a59a04..4789c60a86e3 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -216,25 +216,7 @@ EXPORT_SYMBOL(arm_coherent_dma_ops);
static int __dma_supported(struct device *dev, u64 mask, bool warn)
{
- unsigned long max_dma_pfn;
-
- /*
- * If the mask allows for more memory than we can address,
- * and we actually have that much memory, then we must
- * indicate that DMA to this device is not supported.
- */
- if (sizeof(mask) != sizeof(dma_addr_t) &&
- mask > (dma_addr_t)~0 &&
- dma_to_pfn(dev, ~0) < max_pfn - 1) {
- if (warn) {
- dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n",
- mask);
- dev_warn(dev, "Driver did not use or check the return value from dma_set_coherent_mask()?\n");
- }
- return 0;
- }
-
- max_dma_pfn = min(max_pfn, arm_dma_pfn_limit);
+ unsigned long max_dma_pfn = min(max_pfn, arm_dma_pfn_limit);
/*
* Translate the device's DMA mask to a PFN limit. This
@@ -493,8 +475,7 @@ void __init dma_contiguous_remap(void)
}
}
-static int __dma_update_pte(pte_t *pte, pgtable_t token, unsigned long addr,
- void *data)
+static int __dma_update_pte(pte_t *pte, unsigned long addr, void *data)
{
struct page *page = virt_to_page(addr);
pgprot_t prot = *(pgprot_t *)data;
diff --git a/arch/arm/mm/dump.c b/arch/arm/mm/dump.c
index 006d27ee4fc6..7d6291f23251 100644
--- a/arch/arm/mm/dump.c
+++ b/arch/arm/mm/dump.c
@@ -446,7 +446,7 @@ void ptdump_check_wx(void)
static int ptdump_init(void)
{
ptdump_initialize();
- return ptdump_debugfs_register(&kernel_ptdump_info,
- "kernel_page_tables");
+ ptdump_debugfs_register(&kernel_ptdump_info, "kernel_page_tables");
+ return 0;
}
__initcall(ptdump_init);
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 1aa2586fa597..d9a0038774a6 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -729,7 +729,7 @@ static void __init *early_alloc(unsigned long sz)
static void *__init late_alloc(unsigned long sz)
{
- void *ptr = (void *)__get_free_pages(PGALLOC_GFP, get_order(sz));
+ void *ptr = (void *)__get_free_pages(GFP_PGTABLE_KERNEL, get_order(sz));
if (!ptr || !pgtable_page_ctor(virt_to_page(ptr)))
BUG();
diff --git a/arch/arm/mm/pageattr.c b/arch/arm/mm/pageattr.c
index 0f5faf30d9bf..d546efad7e97 100644
--- a/arch/arm/mm/pageattr.c
+++ b/arch/arm/mm/pageattr.c
@@ -14,8 +14,7 @@ struct page_change_data {
pgprot_t clear_mask;
};
-static int change_page_range(pte_t *ptep, pgtable_t token, unsigned long addr,
- void *data)
+static int change_page_range(pte_t *ptep, unsigned long addr, void *data)
{
struct page_change_data *cdata = data;
pte_t pte = *ptep;
diff --git a/arch/arm/mm/ptdump_debugfs.c b/arch/arm/mm/ptdump_debugfs.c
index be8d87be4b93..598b636615a2 100644
--- a/arch/arm/mm/ptdump_debugfs.c
+++ b/arch/arm/mm/ptdump_debugfs.c
@@ -24,11 +24,7 @@ static const struct file_operations ptdump_fops = {
.release = single_release,
};
-int ptdump_debugfs_register(struct ptdump_info *info, const char *name)
+void ptdump_debugfs_register(struct ptdump_info *info, const char *name)
{
- struct dentry *pe;
-
- pe = debugfs_create_file(name, 0400, NULL, info, &ptdump_fops);
- return pe ? 0 : -ENOMEM;
-
+ debugfs_create_file(name, 0400, NULL, info, &ptdump_fops);
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.