diff options
| -rw-r--r-- | mm/early_ioremap.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/mm/early_ioremap.c b/mm/early_ioremap.c index 3fdde074c9da..96c29b9dc85d 100644 --- a/mm/early_ioremap.c +++ b/mm/early_ioremap.c @@ -30,6 +30,14 @@ static int __init early_ioremap_debug_setup(char *str) } early_param("early_ioremap_debug", early_ioremap_debug_setup); +#define early_ioremap_dbg(fmt, args...) \ + do { \ + if (unlikely(early_ioremap_debug)) { \ + pr_warn(fmt, ##args); \ + dump_stack(); \ + } \ + } while (0) + static int after_paging_init __initdata; pgprot_t __init __weak early_memremap_pgprot_adjust(resource_size_t phys_addr, @@ -139,8 +147,8 @@ __early_ioremap(resource_size_t phys_addr, unsigned long size, pgprot_t prot) if (WARN_ON(nrpages > NR_FIX_BTMAPS)) return NULL; - WARN(early_ioremap_debug, "%s(%pa, %08lx) [%d] => %08lx + %08lx\n", - __func__, &phys_addr, size, slot, slot_virt[slot], offset); + early_ioremap_dbg("%s(%pa, %08lx) [%d] => %08lx + %08lx\n", + __func__, &phys_addr, size, slot, slot_virt[slot], offset); /* * Ok, go for it.. @@ -185,8 +193,7 @@ void __init early_iounmap(void __iomem *addr, unsigned long size) __func__, addr, size, slot, prev_size[slot])) return; - WARN(early_ioremap_debug, "%s(%p, %08lx) [%d]\n", - __func__, addr, size, slot); + early_ioremap_dbg("%s(%p, %08lx) [%d]\n", __func__, addr, size, slot); virt_addr = (unsigned long)addr; if (WARN_ON(virt_addr < fix_to_virt(FIX_BTMAP_BEGIN))) |