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Message-ID: <20141124202228.11999e2b@canb.auug.org.au>
Date: Mon, 24 Nov 2014 20:22:28 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Andrew Morton <akpm@...ux-foundation.org>,
Steven Rostedt <rostedt@...dmis.org>
Cc: linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
Joe Perches <joe@...ches.com>
Subject: linux-next: manual merge of the akpm-current tree with the ftrace
tree
Hi Andrew,
Today's linux-next merge of the akpm-current tree got a conflict in
kernel/printk/printk.c between commit afdc34a3d3b8 ("printk: Add
per_cpu printk func to allow printk to be diverted") from the ftrace
tree and commit b59ed413b21b ("printk: add and use LOGLEVEL_<level>
defines for KERN_<LEVEL> equivalents") from the akpm-current tree.
I fixed it up (see below) and can carry the fix as necessary (no action
is required).
--
Cheers,
Stephen Rothwell sfr@...b.auug.org.au
diff --cc kernel/printk/printk.c
index 35c4b2232d6d,218ea26d75b8..000000000000
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@@ -1807,30 -1805,6 +1805,30 @@@ asmlinkage int printk_emit(int facility
}
EXPORT_SYMBOL(printk_emit);
+int vprintk_default(const char *fmt, va_list args)
+{
+ int r;
+
+#ifdef CONFIG_KGDB_KDB
+ if (unlikely(kdb_trap_printk)) {
+ r = vkdb_printf(fmt, args);
+ return r;
+ }
+#endif
- r = vprintk_emit(0, -1, NULL, 0, fmt, args);
++ r = vprintk_emit(0, LOGLEVEL_DEFAULT, NULL, 0, fmt, args);
+
+ return r;
+}
+EXPORT_SYMBOL_GPL(vprintk_default);
+
+/*
+ * This allows printk to be diverted to another function per cpu.
+ * This is useful for calling printk functions from within NMI
+ * without worrying about race conditions that can lock up the
+ * box.
+ */
+DEFINE_PER_CPU(printk_func_t, printk_func) = vprintk_default;
+
/**
* printk - print a kernel message
* @fmt: format string
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