From 9999e48639b3cecb08ffb37358bcba3b48161b29 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 08:50:17 +0000
Subject: [PATCH] add ax88772_rst
---
kernel/include/linux/random.h | 135 +++++++++++++++++++++++++--------------------
1 files changed, 75 insertions(+), 60 deletions(-)
diff --git a/kernel/include/linux/random.h b/kernel/include/linux/random.h
index 3728a12..5fdd133 100644
--- a/kernel/include/linux/random.h
+++ b/kernel/include/linux/random.h
@@ -1,52 +1,35 @@
/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * include/linux/random.h
- *
- * Include file for the random number generator.
- */
+
#ifndef _LINUX_RANDOM_H
#define _LINUX_RANDOM_H
+#include <linux/bug.h>
+#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/once.h>
#include <uapi/linux/random.h>
-struct random_ready_callback {
- struct list_head list;
- void (*func)(struct random_ready_callback *rdy);
- struct module *owner;
-};
+struct notifier_block;
-extern void add_device_randomness(const void *, unsigned int);
-extern void add_bootloader_randomness(const void *, unsigned int);
+void add_device_randomness(const void *buf, unsigned int len);
+void add_bootloader_randomness(const void *buf, size_t len);
+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 *buf, size_t len, size_t entropy);
-#if defined(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) && !defined(__CHECKER__)
static inline void add_latent_entropy(void)
{
- add_device_randomness((const void *)&latent_entropy,
- sizeof(latent_entropy));
-}
+#if defined(LATENT_ENTROPY_PLUGIN) && !defined(__CHECKER__)
+ add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
#else
-static inline void add_latent_entropy(void) {}
+ add_device_randomness(NULL, 0);
#endif
+}
-extern void add_input_randomness(unsigned int type, unsigned int code,
- unsigned int value) __latent_entropy;
-extern void add_interrupt_randomness(int irq, int irq_flags, __u64 ip) __latent_entropy;
-
-extern void get_random_bytes(void *buf, int nbytes);
-extern int wait_for_random_bytes(void);
-extern int __init rand_initialize(void);
-extern bool rng_is_initialized(void);
-extern int add_random_ready_callback(struct random_ready_callback *rdy);
-extern void del_random_ready_callback(struct random_ready_callback *rdy);
-extern int __must_check get_random_bytes_arch(void *buf, int nbytes);
-
-#ifndef MODULE
-extern const struct file_operations random_fops, urandom_fops;
-#endif
-
+void get_random_bytes(void *buf, int len);
+int __must_check get_random_bytes_arch(void *buf, int len);
u32 get_random_u32(void);
u64 get_random_u64(void);
static inline unsigned int get_random_int(void)
@@ -78,35 +61,37 @@
static inline unsigned long get_random_canary(void)
{
- unsigned long val = get_random_long();
-
- return val & CANARY_MASK;
+ return get_random_long() & CANARY_MASK;
}
+
+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, int nbytes)
+static inline int get_random_bytes_wait(void *buf, size_t nbytes)
{
int ret = wait_for_random_bytes();
get_random_bytes(buf, nbytes);
return ret;
}
-#define declare_get_random_var_wait(var) \
- static inline int get_random_ ## var ## _wait(var *out) { \
+#define declare_get_random_var_wait(name, ret_type) \
+ static inline int get_random_ ## name ## _wait(ret_type *out) { \
int ret = wait_for_random_bytes(); \
if (unlikely(ret)) \
return ret; \
- *out = get_random_ ## var(); \
+ *out = get_random_ ## name(); \
return 0; \
}
-declare_get_random_var_wait(u32)
-declare_get_random_var_wait(u64)
-declare_get_random_var_wait(int)
-declare_get_random_var_wait(long)
+declare_get_random_var_wait(u32, u32)
+declare_get_random_var_wait(u64, u32)
+declare_get_random_var_wait(int, unsigned int)
+declare_get_random_var_wait(long, unsigned 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
@@ -118,22 +103,52 @@
#ifdef CONFIG_ARCH_RANDOM
# include <asm/archrandom.h>
#else
-static inline bool __must_check arch_get_random_long(unsigned long *v)
+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
+
+/*
+ * Called from the boot CPU during startup; not valid to call once
+ * secondary CPUs are up and preemption is possible.
+ */
+#ifndef arch_get_random_seed_long_early
+static inline bool __init arch_get_random_seed_long_early(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;
+ WARN_ON(system_state != SYSTEM_BOOTING);
+ return arch_get_random_seed_long(v);
}
#endif
+#ifndef arch_get_random_long_early
+static inline bool __init arch_get_random_long_early(unsigned long *v)
+{
+ WARN_ON(system_state != SYSTEM_BOOTING);
+ return arch_get_random_long(v);
+}
+#endif
+
+#ifdef CONFIG_SMP
+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
+
+/*
+ * Android KABI fixups
+ * Added back the following structure and calls to preserve the ABI for
+ * out-of-tree drivers that were using them.
+ */
+struct random_ready_callback {
+ struct list_head list;
+ void (*func)(struct random_ready_callback *rdy);
+ struct module *owner;
+};
+extern int add_random_ready_callback(struct random_ready_callback *rdy);
+extern void del_random_ready_callback(struct random_ready_callback *rdy);
+
#endif /* _LINUX_RANDOM_H */
--
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