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authorIngo Molnar <mingo@elte.hu>2008-01-30 13:33:47 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:33:47 +0100
commitd690b2afd5a7a02816386aa704c8c0b1aca8d2de (patch)
tree4a8951a6c43781440236ea3e5f1dba8e75729d08 /arch/x86/mm
parent793b24a2dd0d695c748efba7b2295e7f9fdd3139 (diff)
x86: add early_ioremap() leak detection
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/ioremap_32.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 7f7daf50efe..b743de841f6 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -311,6 +311,22 @@ static inline void __init early_clear_fixmap(enum fixed_addresses idx)
int __initdata early_ioremap_nested;
+static int __init check_early_ioremap_leak(void)
+{
+ if (!early_ioremap_nested)
+ return 0;
+
+ printk(KERN_WARNING
+ "Debug warning: early ioremap leak of %d areas detected.\n",
+ early_ioremap_nested);
+ printk(KERN_WARNING
+ "please boot with early_ioremap_debug and report the dmesg.\n");
+ WARN_ON(1);
+
+ return 1;
+}
+late_initcall(check_early_ioremap_leak);
+
void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
{
unsigned long offset, last_addr;