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authorDan Carpenter <dan.carpenter@oracle.com>2019-11-19 07:18:19 +0100
committerChristoph Hellwig <hch@lst.de>2019-11-20 20:31:41 +0100
commit50f579a2399dee0ad1c86ea8159ab8657b74f95b (patch)
tree35067e3650d1b83fc093b02cfe1afac7762ca4f8 /kernel/dma/debug.c
parentpowerpc: remove support for NULL dev in __phys_to_dma / __dma_to_phys (diff)
downloadlinux-50f579a2399dee0ad1c86ea8159ab8657b74f95b.tar.xz
linux-50f579a2399dee0ad1c86ea8159ab8657b74f95b.zip
dma-debug: clean up put_hash_bucket()
The put_hash_bucket() is a bit cleaner if it takes an unsigned long directly instead of a pointer to unsigned long. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'kernel/dma/debug.c')
-rw-r--r--kernel/dma/debug.c20
1 files changed, 9 insertions, 11 deletions
diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 004496654aaa..64972aa9bfc3 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -255,12 +255,10 @@ static struct hash_bucket *get_hash_bucket(struct dma_debug_entry *entry,
* Give up exclusive access to the hash bucket
*/
static void put_hash_bucket(struct hash_bucket *bucket,
- unsigned long *flags)
+ unsigned long flags)
__releases(&bucket->lock)
{
- unsigned long __flags = *flags;
-
- spin_unlock_irqrestore(&bucket->lock, __flags);
+ spin_unlock_irqrestore(&bucket->lock, flags);
}
static bool exact_match(struct dma_debug_entry *a, struct dma_debug_entry *b)
@@ -359,7 +357,7 @@ static struct dma_debug_entry *bucket_find_contain(struct hash_bucket **bucket,
/*
* Nothing found, go back a hash bucket
*/
- put_hash_bucket(*bucket, flags);
+ put_hash_bucket(*bucket, *flags);
range += (1 << HASH_FN_SHIFT);
index.dev_addr -= (1 << HASH_FN_SHIFT);
*bucket = get_hash_bucket(&index, flags);
@@ -609,7 +607,7 @@ static void add_dma_entry(struct dma_debug_entry *entry)
bucket = get_hash_bucket(entry, &flags);
hash_bucket_add(bucket, entry);
- put_hash_bucket(bucket, &flags);
+ put_hash_bucket(bucket, flags);
rc = active_cacheline_insert(entry);
if (rc == -ENOMEM) {
@@ -1002,7 +1000,7 @@ static void check_unmap(struct dma_debug_entry *ref)
if (!entry) {
/* must drop lock before calling dma_mapping_error */
- put_hash_bucket(bucket, &flags);
+ put_hash_bucket(bucket, flags);
if (dma_mapping_error(ref->dev, ref->dev_addr)) {
err_printk(ref->dev, NULL,
@@ -1084,7 +1082,7 @@ static void check_unmap(struct dma_debug_entry *ref)
hash_bucket_del(entry);
dma_entry_free(entry);
- put_hash_bucket(bucket, &flags);
+ put_hash_bucket(bucket, flags);
}
static void check_for_stack(struct device *dev,
@@ -1204,7 +1202,7 @@ static void check_sync(struct device *dev,
}
out:
- put_hash_bucket(bucket, &flags);
+ put_hash_bucket(bucket, flags);
}
static void check_sg_segment(struct device *dev, struct scatterlist *sg)
@@ -1319,7 +1317,7 @@ void debug_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
}
}
- put_hash_bucket(bucket, &flags);
+ put_hash_bucket(bucket, flags);
}
EXPORT_SYMBOL(debug_dma_mapping_error);
@@ -1392,7 +1390,7 @@ static int get_nr_mapped_entries(struct device *dev,
if (entry)
mapped_ents = entry->sg_mapped_ents;
- put_hash_bucket(bucket, &flags);
+ put_hash_bucket(bucket, flags);
return mapped_ents;
}