lmb: Make lmb debugging more useful.

Having to muck with the build and set DEBUG just to
get lmb_dump_all() to print things isn't very useful.

So use pr_info() and use an early boot param
"lmb=debug" so we can simply ask users to reboot
with this option when we need some debugging from
them.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 22 insertions, 11 deletions

diff --git a/lib/lmb.c b/lib/lmb.c
index 93445dc8f818..867f7b5a8231 100644
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -19,31 +19,42 @@
 
 struct lmb lmb;
 
+static int lmb_debug;
+
+static int __init early_lmb(char *p)
+{
+        if (p && strstr(p, "debug"))
+                lmb_debug = 1;
+        return 0;
+}
+early_param("lmb", early_lmb);
+
 void lmb_dump_all(void)
 {
-#ifdef DEBUG
         unsigned long i;
 
-        pr_debug("lmb_dump_all:\n");
-        pr_debug("    memory.cnt                  = 0x%lx\n", lmb.memory.cnt);
-        pr_debug("    memory.size                 = 0x%llx\n",
+        if (!lmb_debug)
+                return;
+
+        pr_info("lmb_dump_all:\n");
+        pr_info("    memory.cnt           = 0x%lx\n", lmb.memory.cnt);
+        pr_info("    memory.size                  = 0x%llx\n",
             (unsigned long long)lmb.memory.size);
         for (i=0; i < lmb.memory.cnt ;i++) {
-                pr_debug("    memory.region[0x%x].base       = 0x%llx\n",
+                pr_info("    memory.region[0x%lx].base       = 0x%llx\n",
                     i, (unsigned long long)lmb.memory.region[i].base);
-                pr_debug("                    .size     = 0x%llx\n",
+                pr_info("                     .size     = 0x%llx\n",
                     (unsigned long long)lmb.memory.region[i].size);
         }
 
-        pr_debug("    reserved.cnt        = 0x%lx\n", lmb.reserved.cnt);
-        pr_debug("    reserved.size       = 0x%lx\n", lmb.reserved.size);
+        pr_info("    reserved.cnt         = 0x%lx\n", lmb.reserved.cnt);
+        pr_info("    reserved.size        = 0x%lx\n", lmb.reserved.size);
         for (i=0; i < lmb.reserved.cnt ;i++) {
-                pr_debug("    reserved.region[0x%x].base       = 0x%llx\n",
+                pr_info("    reserved.region[0x%lx].base       = 0x%llx\n",
                     i, (unsigned long long)lmb.reserved.region[i].base);
-                pr_debug("                    .size     = 0x%llx\n",
+                pr_info("                     .size     = 0x%llx\n",
                     (unsigned long long)lmb.reserved.region[i].size);
         }
-#endif /* DEBUG */
 }
 
 static unsigned long lmb_addrs_overlap(u64 base1, u64 size1, u64 base2,