We don't need explicit 'CMA:' prefix, since we already define prefix
'cma:' in pr_fmt. So remove it.

And, some logs print function name and others doesn't. This looks
bad to me, so I unify log format to print function name consistently.

Lastly, I add one more debug log on cma_activate_area().

Signed-off-by: Joonsoo Kim <iamjoonsoo....@lge.com>

diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c
index 83969f8..bd0bb81 100644
--- a/drivers/base/dma-contiguous.c
+++ b/drivers/base/dma-contiguous.c
@@ -144,7 +144,7 @@ void __init dma_contiguous_reserve(phys_addr_t limit)
        }
 
        if (selected_size && !dma_contiguous_default_area) {
-               pr_debug("%s: reserving %ld MiB for global area\n", __func__,
+               pr_debug("%s(): reserving %ld MiB for global area\n", __func__,
                         (unsigned long)selected_size / SZ_1M);
 
                dma_contiguous_reserve_area(selected_size, selected_base,
@@ -163,8 +163,9 @@ static int __init cma_activate_area(struct cma *cma)
        unsigned i = cma->count >> pageblock_order;
        struct zone *zone;
 
-       cma->bitmap = kzalloc(bitmap_size, GFP_KERNEL);
+       pr_debug("%s()\n", __func__);
 
+       cma->bitmap = kzalloc(bitmap_size, GFP_KERNEL);
        if (!cma->bitmap)
                return -ENOMEM;
 
@@ -234,7 +235,8 @@ int __init dma_contiguous_reserve_area(phys_addr_t size, 
phys_addr_t base,
 
        /* Sanity checks */
        if (cma_area_count == ARRAY_SIZE(cma_areas)) {
-               pr_err("Not enough slots for CMA reserved regions!\n");
+               pr_err("%s(): Not enough slots for CMA reserved regions!\n",
+                       __func__);
                return -ENOSPC;
        }
 
@@ -274,14 +276,15 @@ int __init dma_contiguous_reserve_area(phys_addr_t size, 
phys_addr_t base,
        *res_cma = cma;
        cma_area_count++;
 
-       pr_info("CMA: reserved %ld MiB at %08lx\n", (unsigned long)size / SZ_1M,
-               (unsigned long)base);
+       pr_info("%s(): reserved %ld MiB at %08lx\n",
+               __func__, (unsigned long)size / SZ_1M, (unsigned long)base);
 
        /* Architecture specific contiguous memory fixup. */
        dma_contiguous_early_fixup(base, size);
        return 0;
 err:
-       pr_err("CMA: failed to reserve %ld MiB\n", (unsigned long)size / SZ_1M);
+       pr_err("%s(): failed to reserve %ld MiB\n",
+               __func__, (unsigned long)size / SZ_1M);
        return ret;
 }
 
-- 
1.7.9.5

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