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-rw-r--r--arch/x86/boot/compressed/error.c2
-rw-r--r--arch/x86/boot/compressed/error.h2
-rw-r--r--arch/x86/include/asm/div64.h6
-rw-r--r--arch/x86/include/asm/microcode.h6
-rw-r--r--arch/x86/include/asm/paravirt.h7
-rw-r--r--arch/x86/include/asm/processor.h2
-rw-r--r--arch/x86/include/asm/qspinlock.h7
-rw-r--r--arch/x86/include/asm/qspinlock_paravirt.h2
-rw-r--r--arch/x86/kernel/alternative.c1
-rw-r--r--arch/x86/kernel/apic/ipi.c2
-rw-r--r--arch/x86/kernel/apic/x2apic_uv_x.c5
-rw-r--r--arch/x86/kernel/hpet.c2
-rw-r--r--arch/x86/kernel/paravirt.c3
-rw-r--r--arch/x86/platform/uv/uv_nmi.c12
-rw-r--r--arch/x86/purgatory/purgatory.c1
15 files changed, 33 insertions, 27 deletions
diff --git a/arch/x86/boot/compressed/error.c b/arch/x86/boot/compressed/error.c
index 5313c5cb2b80..19a8251de506 100644
--- a/arch/x86/boot/compressed/error.c
+++ b/arch/x86/boot/compressed/error.c
@@ -7,7 +7,7 @@
#include "misc.h"
#include "error.h"
-void warn(char *m)
+void warn(const char *m)
{
error_putstr("\n\n");
error_putstr(m);
diff --git a/arch/x86/boot/compressed/error.h b/arch/x86/boot/compressed/error.h
index 86fe33b93715..31f9e080d61a 100644
--- a/arch/x86/boot/compressed/error.h
+++ b/arch/x86/boot/compressed/error.h
@@ -4,7 +4,7 @@
#include <linux/compiler.h>
-void warn(char *m);
+void warn(const char *m);
void error(char *m) __noreturn;
void panic(const char *fmt, ...) __noreturn __cold;
diff --git a/arch/x86/include/asm/div64.h b/arch/x86/include/asm/div64.h
index b8f1dc0761e4..9931e4c7d73f 100644
--- a/arch/x86/include/asm/div64.h
+++ b/arch/x86/include/asm/div64.h
@@ -71,6 +71,12 @@ static inline u64 mul_u32_u32(u32 a, u32 b)
}
#define mul_u32_u32 mul_u32_u32
+/*
+ * __div64_32() is never called on x86, so prevent the
+ * generic definition from getting built.
+ */
+#define __div64_32
+
#else
# include <asm-generic/div64.h>
diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h
index 2f355b6cd682..bbbe9d744977 100644
--- a/arch/x86/include/asm/microcode.h
+++ b/arch/x86/include/asm/microcode.h
@@ -75,10 +75,4 @@ void show_ucode_info_early(void);
static inline void show_ucode_info_early(void) { }
#endif /* !CONFIG_CPU_SUP_INTEL */
-#ifdef CONFIG_CPU_SUP_AMD
-void amd_check_microcode(void);
-#else /* CONFIG_CPU_SUP_AMD */
-static inline void amd_check_microcode(void) {}
-#endif
-
#endif /* _ASM_X86_MICROCODE_H */
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index b49778664d2b..6c8ff12140ae 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -739,6 +739,7 @@ static __always_inline unsigned long arch_local_irq_save(void)
".popsection")
extern void default_banner(void);
+void native_pv_lock_init(void) __init;
#else /* __ASSEMBLY__ */
@@ -778,6 +779,12 @@ extern void default_banner(void);
#endif /* __ASSEMBLY__ */
#else /* CONFIG_PARAVIRT */
# define default_banner x86_init_noop
+
+#ifndef __ASSEMBLY__
+static inline void native_pv_lock_init(void)
+{
+}
+#endif
#endif /* !CONFIG_PARAVIRT */
#ifndef __ASSEMBLY__
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index fd750247ca89..861e53e201e9 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -678,11 +678,13 @@ extern u32 amd_get_nodes_per_socket(void);
extern u32 amd_get_highest_perf(void);
extern bool cpu_has_ibpb_brtype_microcode(void);
extern void amd_clear_divider(void);
+extern void amd_check_microcode(void);
#else
static inline u32 amd_get_nodes_per_socket(void) { return 0; }
static inline u32 amd_get_highest_perf(void) { return 0; }
static inline bool cpu_has_ibpb_brtype_microcode(void) { return false; }
static inline void amd_clear_divider(void) { }
+static inline void amd_check_microcode(void) { }
#endif
extern unsigned long arch_align_stack(unsigned long sp);
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index d87451df480b..cde8357bb226 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -74,8 +74,6 @@ static inline bool vcpu_is_preempted(long cpu)
*/
DECLARE_STATIC_KEY_TRUE(virt_spin_lock_key);
-void native_pv_lock_init(void) __init;
-
/*
* Shortcut for the queued_spin_lock_slowpath() function that allows
* virt to hijack it.
@@ -103,10 +101,7 @@ static inline bool virt_spin_lock(struct qspinlock *lock)
return true;
}
-#else
-static inline void native_pv_lock_init(void)
-{
-}
+
#endif /* CONFIG_PARAVIRT */
#include <asm-generic/qspinlock.h>
diff --git a/arch/x86/include/asm/qspinlock_paravirt.h b/arch/x86/include/asm/qspinlock_paravirt.h
index 42b17cf10b10..85b6e3609cb9 100644
--- a/arch/x86/include/asm/qspinlock_paravirt.h
+++ b/arch/x86/include/asm/qspinlock_paravirt.h
@@ -4,6 +4,8 @@
#include <asm/ibt.h>
+void __lockfunc __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked);
+
/*
* For x86-64, PV_CALLEE_SAVE_REGS_THUNK() saves and restores 8 64-bit
* registers. For i386, however, only 1 32-bit register needs to be saved
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 099d58d02a26..a5ead6a6d233 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -1527,6 +1527,7 @@ static noinline void __init int3_selftest(void)
static __initdata int __alt_reloc_selftest_addr;
+extern void __init __alt_reloc_selftest(void *arg);
__visible noinline void __init __alt_reloc_selftest(void *arg)
{
WARN_ON(arg != &__alt_reloc_selftest_addr);
diff --git a/arch/x86/kernel/apic/ipi.c b/arch/x86/kernel/apic/ipi.c
index 2a6509e8c840..9bfd6e397384 100644
--- a/arch/x86/kernel/apic/ipi.c
+++ b/arch/x86/kernel/apic/ipi.c
@@ -301,6 +301,7 @@ void default_send_IPI_mask_logical(const struct cpumask *cpumask, int vector)
local_irq_restore(flags);
}
+#ifdef CONFIG_SMP
/* must come after the send_IPI functions above for inlining */
static int convert_apicid_to_cpu(int apic_id)
{
@@ -329,3 +330,4 @@ int safe_smp_processor_id(void)
return cpuid >= 0 ? cpuid : 0;
}
#endif
+#endif
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index d9384d5b4b8e..b524dee1cbbb 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -294,8 +294,7 @@ static void __init early_get_apic_socketid_shift(void)
static void __init uv_stringify(int len, char *to, char *from)
{
- /* Relies on 'to' being NULL chars so result will be NULL terminated */
- strncpy(to, from, len-1);
+ strscpy(to, from, len);
/* Trim trailing spaces */
(void)strim(to);
@@ -1013,7 +1012,7 @@ static void __init calc_mmioh_map(enum mmioh_arch index,
/* One (UV2) mapping */
if (index == UV2_MMIOH) {
- strncpy(id, "MMIOH", sizeof(id));
+ strscpy(id, "MMIOH", sizeof(id));
max_io = max_pnode;
mapped = 0;
goto map_exit;
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index c8eb1ac5125a..1648aa0204d9 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -421,7 +421,7 @@ static void __init hpet_legacy_clockevent_register(struct hpet_channel *hc)
* the IO_APIC has been initialized.
*/
hc->cpu = boot_cpu_data.cpu_index;
- strncpy(hc->name, "hpet", sizeof(hc->name));
+ strscpy(hc->name, "hpet", sizeof(hc->name));
hpet_init_clockevent(hc, 50);
hc->evt.tick_resume = hpet_clkevt_legacy_resume;
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 23d4d7114473..975f98d5eee5 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -75,7 +75,8 @@ DEFINE_STATIC_KEY_TRUE(virt_spin_lock_key);
void __init native_pv_lock_init(void)
{
- if (!boot_cpu_has(X86_FEATURE_HYPERVISOR))
+ if (IS_ENABLED(CONFIG_PARAVIRT_SPINLOCKS) &&
+ !boot_cpu_has(X86_FEATURE_HYPERVISOR))
static_branch_disable(&virt_spin_lock_key);
}
diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c
index a60af0230e27..a6ab43f69b7d 100644
--- a/arch/x86/platform/uv/uv_nmi.c
+++ b/arch/x86/platform/uv/uv_nmi.c
@@ -202,21 +202,17 @@ static int param_set_action(const char *val, const struct kernel_param *kp)
{
int i;
int n = ARRAY_SIZE(valid_acts);
- char arg[ACTION_LEN], *p;
+ char arg[ACTION_LEN];
/* (remove possible '\n') */
- strncpy(arg, val, ACTION_LEN - 1);
- arg[ACTION_LEN - 1] = '\0';
- p = strchr(arg, '\n');
- if (p)
- *p = '\0';
+ strscpy(arg, val, strnchrnul(val, sizeof(arg)-1, '\n') - val + 1);
for (i = 0; i < n; i++)
if (!strcmp(arg, valid_acts[i].action))
break;
if (i < n) {
- strcpy(uv_nmi_action, arg);
+ strscpy(uv_nmi_action, arg, sizeof(uv_nmi_action));
pr_info("UV: New NMI action:%s\n", uv_nmi_action);
return 0;
}
@@ -959,7 +955,7 @@ static int uv_handle_nmi(unsigned int reason, struct pt_regs *regs)
/* Unexpected return, revert action to "dump" */
if (master)
- strncpy(uv_nmi_action, "dump", strlen(uv_nmi_action));
+ strscpy(uv_nmi_action, "dump", sizeof(uv_nmi_action));
}
/* Pause as all CPU's enter the NMI handler */
diff --git a/arch/x86/purgatory/purgatory.c b/arch/x86/purgatory/purgatory.c
index 7558139920f8..aea47e793963 100644
--- a/arch/x86/purgatory/purgatory.c
+++ b/arch/x86/purgatory/purgatory.c
@@ -14,6 +14,7 @@
#include <crypto/sha2.h>
#include <asm/purgatory.h>
+#include "../boot/compressed/error.h"
#include "../boot/string.h"
u8 purgatory_sha256_digest[SHA256_DIGEST_SIZE] __section(".kexec-purgatory");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 13:31:01 +0000