On 24/04/18 15:02, Christoph Hellwig wrote:
Just keep a single variable with a descriptive name instead of two
with confusing names.
Reviewed-by: Robin Murphy <robin.murphy@xxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
lib/dma-debug.c | 20 ++++----------------
1 file changed, 4 insertions(+), 16 deletions(-)
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 712a897174e4..075253cb613b 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -132,7 +132,7 @@ static u32 min_free_entries;
static u32 nr_total_entries;
/* number of preallocated entries requested by kernel cmdline */
-static u32 req_entries;
+static u32 nr_prealloc_entries = PREALLOC_DMA_DEBUG_ENTRIES;
/* debugfs dentry's for the stuff above */
static struct dentry *dma_debug_dent __read_mostly;
@@ -1011,7 +1011,6 @@ void dma_debug_add_bus(struct bus_type *bus)
static int dma_debug_init(void)
{
- u32 num_entries;
int i;
/* Do not use dma_debug_initialized here, since we really want to be
@@ -1032,12 +1031,7 @@ static int dma_debug_init(void)
return 0;
}
- if (req_entries)
- num_entries = req_entries;
- else
- num_entries = PREALLOC_DMA_DEBUG_ENTRIES;
-
- if (prealloc_memory(num_entries) != 0) {
+ if (prealloc_memory(nr_prealloc_entries) != 0) {
pr_err("DMA-API: debugging out of memory error - disabled\n");
global_disable = true;
@@ -1068,16 +1062,10 @@ static __init int dma_debug_cmdline(char *str)
static __init int dma_debug_entries_cmdline(char *str)
{
- int res;
-
if (!str)
return -EINVAL;
-
- res = get_option(&str, &req_entries);
-
- if (!res)
- req_entries = 0;
-
+ if (!get_option(&str, &nr_prealloc_entries))
+ nr_prealloc_entries = PREALLOC_DMA_DEBUG_ENTRIES;
return 0;
}
