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random: remove extern from functions in header

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Accoriding to the kernel style guide, having `extern` on functions in
headers is old school and deprecated, and doesn't add anything. So remove
them from random.h, and tidy up the file a little bit too.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2022-05-13 12:29:38 +02:00
parent f5bda35fba
commit 7782cfeca7
1 changed files with 31 additions and 46 deletions
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77
include/linux/random.h
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@ -12,13 +12,12 @@
struct notifier_block;
extern void add_device_randomness(const void *, size_t);
extern void add_bootloader_randomness(const void *, size_t);
extern void add_input_randomness(unsigned int type, unsigned int code,
unsigned int value) __latent_entropy;
extern void add_interrupt_randomness(int irq) __latent_entropy;
extern void add_hwgenerator_randomness(const void *buffer, size_t count,
size_t entropy);
void add_device_randomness(const void *, size_t);
void add_bootloader_randomness(const void *, size_t);
void add_input_randomness(unsigned int type, unsigned int code,
unsigned int value) __latent_entropy;
void add_interrupt_randomness(int irq) __latent_entropy;
void add_hwgenerator_randomness(const void *buffer, size_t count, size_t entropy);
#if defined(LATENT_ENTROPY_PLUGIN) && !defined(__CHECKER__)
static inline void add_latent_entropy(void)
@ -26,30 +25,20 @@ static inline void add_latent_entropy(void)
add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
}
#else
static inline void add_latent_entropy(void) {}
static inline void add_latent_entropy(void) { }
#endif
#if IS_ENABLED(CONFIG_VMGENID)
extern void add_vmfork_randomness(const void *unique_vm_id, size_t size);
extern int register_random_vmfork_notifier(struct notifier_block *nb);
extern int unregister_random_vmfork_notifier(struct notifier_block *nb);
void add_vmfork_randomness(const void *unique_vm_id, size_t size);
int register_random_vmfork_notifier(struct notifier_block *nb);
int unregister_random_vmfork_notifier(struct notifier_block *nb);
#else
static inline int register_random_vmfork_notifier(struct notifier_block *nb) { return 0; }
static inline int unregister_random_vmfork_notifier(struct notifier_block *nb) { return 0; }
#endif
extern void get_random_bytes(void *buf, size_t nbytes);
extern int wait_for_random_bytes(void);
extern int __init random_init(const char *command_line);
extern bool rng_is_initialized(void);
extern int register_random_ready_notifier(struct notifier_block *nb);
extern int unregister_random_ready_notifier(struct notifier_block *nb);
extern size_t __must_check get_random_bytes_arch(void *buf, size_t nbytes);
#ifndef MODULE
extern const struct file_operations random_fops, urandom_fops;
#endif
void get_random_bytes(void *buf, size_t nbytes);
size_t __must_check get_random_bytes_arch(void *buf, size_t nbytes);
u32 get_random_u32(void);
u64 get_random_u64(void);
static inline unsigned int get_random_int(void)
@ -81,11 +70,17 @@ static inline unsigned long get_random_long(void)
static inline unsigned long get_random_canary(void)
{
unsigned long val = get_random_long();
return val & CANARY_MASK;
return get_random_long() & CANARY_MASK;
}
unsigned long randomize_page(unsigned long start, unsigned long range);
int __init random_init(const char *command_line);
bool rng_is_initialized(void);
int wait_for_random_bytes(void);
int register_random_ready_notifier(struct notifier_block *nb);
int unregister_random_ready_notifier(struct notifier_block *nb);
/* Calls wait_for_random_bytes() and then calls get_random_bytes(buf, nbytes).
* Returns the result of the call to wait_for_random_bytes. */
static inline int get_random_bytes_wait(void *buf, size_t nbytes)
@ -109,8 +104,6 @@ declare_get_random_var_wait(int)
declare_get_random_var_wait(long)
#undef declare_get_random_var
unsigned long randomize_page(unsigned long start, unsigned long range);
/*
* This is designed to be standalone for just prandom
* users, but for now we include it from <linux/random.h>
@ -121,22 +114,10 @@ unsigned long randomize_page(unsigned long start, unsigned long range);
#ifdef CONFIG_ARCH_RANDOM
# include <asm/archrandom.h>
#else
static inline bool __must_check arch_get_random_long(unsigned long *v)
{
return false;
}
static inline bool __must_check arch_get_random_int(unsigned int *v)
{
return false;
}
static inline bool __must_check arch_get_random_seed_long(unsigned long *v)
{
return false;
}
static inline bool __must_check arch_get_random_seed_int(unsigned int *v)
{
return false;
}
static inline bool __must_check arch_get_random_long(unsigned long *v) { return false; }
static inline bool __must_check arch_get_random_int(unsigned int *v) { return false; }
static inline bool __must_check arch_get_random_seed_long(unsigned long *v) { return false; }
static inline bool __must_check arch_get_random_seed_int(unsigned int *v) { return false; }
#endif
/*
@ -160,8 +141,12 @@ static inline bool __init arch_get_random_long_early(unsigned long *v)
#endif
#ifdef CONFIG_SMP
extern int random_prepare_cpu(unsigned int cpu);
extern int random_online_cpu(unsigned int cpu);
int random_prepare_cpu(unsigned int cpu);
int random_online_cpu(unsigned int cpu);
#endif
#ifndef MODULE
extern const struct file_operations random_fops, urandom_fops;
#endif
#endif /* _LINUX_RANDOM_H */