From ddd86436f4e3643c04b797f858dab95d5f2e4de9 Mon Sep 17 00:00:00 2001
From: root <root@artemis.panaceas.org>
Date: Fri, 25 Dec 2015 15:00:15 +0000
Subject: fish

---
 backport-include/linux/printk.h | 105 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 backport-include/linux/printk.h

(limited to 'backport-include/linux/printk.h')

diff --git a/backport-include/linux/printk.h b/backport-include/linux/printk.h
new file mode 100644
index 0000000..6bc9931
--- /dev/null
+++ b/backport-include/linux/printk.h
@@ -0,0 +1,105 @@
+#ifndef _COMPAT_LINUX_PRINTK_H
+#define _COMPAT_LINUX_PRINTK_H 1
+
+#include <linux/version.h>
+
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,36))
+#include_next <linux/printk.h>
+#else
+#include <linux/kernel.h>
+#endif /* (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,35)) */
+
+/* see pr_fmt at end of file */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0)
+/* backports 7a555613 */
+#if defined(CONFIG_DYNAMIC_DEBUG)
+#define dynamic_hex_dump(prefix_str, prefix_type, rowsize,     \
+			 groupsize, buf, len, ascii)            \
+do {                                                           \
+	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor,               \
+	__builtin_constant_p(prefix_str) ? prefix_str : "hexdump");\
+	if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))  \
+		print_hex_dump(KERN_DEBUG, prefix_str,          \
+			       prefix_type, rowsize, groupsize, \
+			       buf, len, ascii);                \
+} while (0)
+#define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
+			     groupsize, buf, len, ascii)        \
+	dynamic_hex_dump(prefix_str, prefix_type, rowsize,      \
+			 groupsize, buf, len, ascii)
+#else
+#define print_hex_dump_debug(prefix_str, prefix_type, rowsize,         \
+			     groupsize, buf, len, ascii)                \
+	print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize,    \
+		       groupsize, buf, len, ascii)
+#endif /* defined(CONFIG_DYNAMIC_DEBUG) */
+
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0) */
+
+#ifndef pr_warn
+#define pr_warn pr_warning
+#endif
+
+#ifndef printk_once
+#define printk_once(x...) ({			\
+	static bool __print_once;		\
+						\
+	if (!__print_once) {			\
+		__print_once = true;		\
+		printk(x);			\
+	}					\
+})
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)
+#define pr_emerg_once(fmt, ...)					\
+	printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_alert_once(fmt, ...)					\
+	printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_crit_once(fmt, ...)					\
+	printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_err_once(fmt, ...)					\
+	printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_warn_once(fmt, ...)					\
+	printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_notice_once(fmt, ...)				\
+	printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_info_once(fmt, ...)					\
+	printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_cont_once(fmt, ...)					\
+	printk_once(KERN_CONT pr_fmt(fmt), ##__VA_ARGS__)
+#if defined(DEBUG)
+#define pr_debug_once(fmt, ...)					\
+	printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
+#else
+#define pr_debug_once(fmt, ...)					\
+	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
+#endif
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)
+/* mask va_format as RHEL6 backports this */
+#define va_format LINUX_BACKPORT(va_format)
+
+struct va_format {
+	const char *fmt;
+	va_list *va;
+};
+
+/*
+ * Dummy printk for disabled debugging statements to use whilst maintaining
+ * gcc's format and side-effect checking.
+ */
+/* mask no_printk as RHEL6 backports this */
+#define no_printk LINUX_BACKPORT(no_printk)
+static inline __attribute__ ((format (printf, 1, 2)))
+int no_printk(const char *s, ...) { return 0; }
+#endif
+
+#endif	/* _COMPAT_LINUX_PRINTK_H */
+
+/* This must be outside -- see also kernel.h */
+#ifndef pr_fmt
+#define pr_fmt(fmt) fmt
+#endif
-- 
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