From f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 01:04:47 +0000
Subject: [PATCH] add driver 5G
---
kernel/include/linux/printk.h | 49 +++++++++++++++++++++++++++++++++++++++++--------
1 files changed, 41 insertions(+), 8 deletions(-)
diff --git a/kernel/include/linux/printk.h b/kernel/include/linux/printk.h
index bd827ae..f976a13 100644
--- a/kernel/include/linux/printk.h
+++ b/kernel/include/linux/printk.h
@@ -45,12 +45,6 @@
#define CONSOLE_EXT_LOG_MAX 8192
-/*
- * The maximum size of a record formatted for console printing
- * (i.e. with the prefix prepended to every line).
- */
-#define CONSOLE_LOG_MAX 4096
-
/* printk's without a loglevel use this.. */
#define MESSAGE_LOGLEVEL_DEFAULT CONFIG_MESSAGE_LOGLEVEL_DEFAULT
@@ -154,6 +148,18 @@
void early_printk(const char *s, ...) { }
#endif
+#ifdef CONFIG_PRINTK_NMI
+extern void printk_nmi_enter(void);
+extern void printk_nmi_exit(void);
+extern void printk_nmi_direct_enter(void);
+extern void printk_nmi_direct_exit(void);
+#else
+static inline void printk_nmi_enter(void) { }
+static inline void printk_nmi_exit(void) { }
+static inline void printk_nmi_direct_enter(void) { }
+static inline void printk_nmi_direct_exit(void) { }
+#endif /* PRINTK_NMI */
+
struct dev_printk_info;
#ifdef CONFIG_PRINTK
@@ -201,6 +207,8 @@
void show_regs_print_info(const char *log_lvl);
extern asmlinkage void dump_stack_lvl(const char *log_lvl) __cold;
extern asmlinkage void dump_stack(void) __cold;
+extern void printk_safe_flush(void);
+extern void printk_safe_flush_on_panic(void);
#else
static inline __printf(1, 0)
int vprintk(const char *s, va_list args)
@@ -266,6 +274,14 @@
}
static inline void dump_stack(void)
+{
+}
+
+static inline void printk_safe_flush(void)
+{
+}
+
+static inline void printk_safe_flush_on_panic(void)
{
}
#endif
@@ -485,8 +501,6 @@
no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#endif
-bool pr_flush(int timeout_ms, bool reset_on_progress);
-
/*
* ratelimited messages with local ratelimit_state,
* no local ratelimit_state used in the !PRINTK case
@@ -613,4 +627,23 @@
#define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \
print_hex_dump_debug(prefix_str, prefix_type, 16, 1, buf, len, true)
+#ifdef CONFIG_PRINTK
+extern void __printk_safe_enter(void);
+extern void __printk_safe_exit(void);
+/*
+ * The printk_deferred_enter/exit macros are available only as a hack for
+ * some code paths that need to defer all printk console printing. Interrupts
+ * must be disabled for the deferred duration.
+ */
+#define printk_deferred_enter __printk_safe_enter
+#define printk_deferred_exit __printk_safe_exit
+#else
+static inline void printk_deferred_enter(void)
+{
+}
+static inline void printk_deferred_exit(void)
+{
+}
+#endif
+
#endif
--
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