disable pwm7

hc

2024-05-10 23fa18eaa71266feff7ba8d83022d9e1cc83c65a

 kernel/include/linux/random.h
..
..
@@ -1,52 +1,35 @@
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 /* SPDX-License-Identifier: GPL-2.0 */
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-/*
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- * include/linux/random.h
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- *
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- * Include file for the random number generator.
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- */
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+
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 #ifndef _LINUX_RANDOM_H
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 #define _LINUX_RANDOM_H
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5
 
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+#include <linux/bug.h>
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+#include <linux/kernel.h>
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 #include <linux/list.h>
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 #include <linux/once.h>
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10
 
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 #include <uapi/linux/random.h>
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12
 
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-struct random_ready_callback {
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-	struct list_head list;
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-	void (*func)(struct random_ready_callback *rdy);
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-	struct module *owner;
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-};
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+struct notifier_block;
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-extern void add_device_randomness(const void *, unsigned int);
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-extern void add_bootloader_randomness(const void *, unsigned int);
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+void add_device_randomness(const void *buf, unsigned int len);
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+void add_bootloader_randomness(const void *buf, size_t len);
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+void add_input_randomness(unsigned int type, unsigned int code,
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+			  unsigned int value) __latent_entropy;
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+void add_interrupt_randomness(int irq) __latent_entropy;
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+void add_hwgenerator_randomness(const void *buf, size_t len, size_t entropy);
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21
 
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-#if defined(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) && !defined(__CHECKER__)
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 static inline void add_latent_entropy(void)
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 {
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-	add_device_randomness((const void *)&latent_entropy,
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-			      sizeof(latent_entropy));
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-}
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+#if defined(LATENT_ENTROPY_PLUGIN) && !defined(__CHECKER__)
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+	add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
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 #else
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-static inline void add_latent_entropy(void) {}
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+	add_device_randomness(NULL, 0);
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 #endif
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+}
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-extern void add_input_randomness(unsigned int type, unsigned int code,
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-				 unsigned int value) __latent_entropy;
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-extern void add_interrupt_randomness(int irq, int irq_flags) __latent_entropy;
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-
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-extern void get_random_bytes(void *buf, int nbytes);
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-extern int wait_for_random_bytes(void);
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-extern int __init rand_initialize(void);
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-extern bool rng_is_initialized(void);
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-extern int add_random_ready_callback(struct random_ready_callback *rdy);
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-extern void del_random_ready_callback(struct random_ready_callback *rdy);
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-extern int __must_check get_random_bytes_arch(void *buf, int nbytes);
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-
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-#ifndef MODULE
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-extern const struct file_operations random_fops, urandom_fops;
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-#endif
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-
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+void get_random_bytes(void *buf, int len);
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+int __must_check get_random_bytes_arch(void *buf, int len);
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 u32 get_random_u32(void);
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 u64 get_random_u64(void);
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 static inline unsigned int get_random_int(void)
..
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@@ -78,35 +61,37 @@
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61
 
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 static inline unsigned long get_random_canary(void)
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 {
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-	unsigned long val = get_random_long();
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-
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-	return val & CANARY_MASK;
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+	return get_random_long() & CANARY_MASK;
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 }
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+
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+int __init random_init(const char *command_line);
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+bool rng_is_initialized(void);
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+int wait_for_random_bytes(void);
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+int register_random_ready_notifier(struct notifier_block *nb);
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+int unregister_random_ready_notifier(struct notifier_block *nb);
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 /* Calls wait_for_random_bytes() and then calls get_random_bytes(buf, nbytes).
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  * Returns the result of the call to wait_for_random_bytes. */
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-static inline int get_random_bytes_wait(void *buf, int nbytes)
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+static inline int get_random_bytes_wait(void *buf, size_t nbytes)
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 {
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 	int ret = wait_for_random_bytes();
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 	get_random_bytes(buf, nbytes);
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 	return ret;
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 }
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-#define declare_get_random_var_wait(var) \
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-	static inline int get_random_ ## var ## _wait(var *out) { \
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+#define declare_get_random_var_wait(name, ret_type) \
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+	static inline int get_random_ ## name ## _wait(ret_type *out) { \
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 		int ret = wait_for_random_bytes(); \
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 		if (unlikely(ret)) \
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 			return ret; \
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-		*out = get_random_ ## var(); \
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+		*out = get_random_ ## name(); \
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 		return 0; \
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 	}
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-declare_get_random_var_wait(u32)
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-declare_get_random_var_wait(u64)
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-declare_get_random_var_wait(int)
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-declare_get_random_var_wait(long)
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+declare_get_random_var_wait(u32, u32)
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+declare_get_random_var_wait(u64, u32)
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+declare_get_random_var_wait(int, unsigned int)
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+declare_get_random_var_wait(long, unsigned long)
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 #undef declare_get_random_var
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-
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-unsigned long randomize_page(unsigned long start, unsigned long range);
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 /*
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  * This is designed to be standalone for just prandom
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@@ -118,22 +103,52 @@
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 #ifdef CONFIG_ARCH_RANDOM
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 # include <asm/archrandom.h>
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 #else
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-static inline bool __must_check arch_get_random_long(unsigned long *v)
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+static inline bool __must_check arch_get_random_long(unsigned long *v) { return false; }
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+static inline bool __must_check arch_get_random_int(unsigned int *v) { return false; }
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+static inline bool __must_check arch_get_random_seed_long(unsigned long *v) { return false; }
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+static inline bool __must_check arch_get_random_seed_int(unsigned int *v) { return false; }
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+#endif
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+
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+/*
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+ * Called from the boot CPU during startup; not valid to call once
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+ * secondary CPUs are up and preemption is possible.
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+ */
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+#ifndef arch_get_random_seed_long_early
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+static inline bool __init arch_get_random_seed_long_early(unsigned long *v)
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 {
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-	return false;
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-}
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-static inline bool __must_check arch_get_random_int(unsigned int *v)
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-{
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-	return false;
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-}
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-static inline bool __must_check arch_get_random_seed_long(unsigned long *v)
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-{
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-	return false;
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-}
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-static inline bool __must_check arch_get_random_seed_int(unsigned int *v)
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-{
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-	return false;
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+	WARN_ON(system_state != SYSTEM_BOOTING);
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+	return arch_get_random_seed_long(v);
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 }
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 #endif
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+#ifndef arch_get_random_long_early
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+static inline bool __init arch_get_random_long_early(unsigned long *v)
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+{
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+	WARN_ON(system_state != SYSTEM_BOOTING);
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+	return arch_get_random_long(v);
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+}
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+#endif
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+
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+#ifdef CONFIG_SMP
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+int random_prepare_cpu(unsigned int cpu);
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+int random_online_cpu(unsigned int cpu);
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+#endif
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+
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+#ifndef MODULE
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+extern const struct file_operations random_fops, urandom_fops;
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+#endif
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+
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+/*
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+ * Android KABI fixups
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+ * Added back the following structure and calls to preserve the ABI for
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+ * out-of-tree drivers that were using them.
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+ */
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+struct random_ready_callback {
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+	struct list_head list;
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+	void (*func)(struct random_ready_callback *rdy);
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+	struct module *owner;
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+};
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+extern int add_random_ready_callback(struct random_ready_callback *rdy);
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+extern void del_random_ready_callback(struct random_ready_callback *rdy);
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+
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 #endif /* _LINUX_RANDOM_H */