Make __block_dev_get_elevator_name return const string

Returning non-const char* doesn't have any benefits since
the only caller casts the output pointer to const char *.

This change fixes compilation on 5.3 kernel.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
This commit is contained in:
Adam Rutkowski 2019-10-28 16:26:43 -04:00
parent 06b3e69c0f
commit ff207f9b2e

View File

@ -92,7 +92,7 @@ uint64_t block_dev_get_byte_length(ocf_volume_t vol)
}
#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 3, 0)
static char *__block_dev_get_elevator_name(struct request_queue *q)
static const char *__block_dev_get_elevator_name(struct request_queue *q)
{
if (q->elevator->elevator_type == NULL)
return NULL;
@ -106,7 +106,7 @@ static char *__block_dev_get_elevator_name(struct request_queue *q)
return q->elevator->elevator_type->elevator_name;
}
#else
static char *__block_dev_get_elevator_name(struct request_queue *q)
static const char *__block_dev_get_elevator_name(struct request_queue *q)
{
if (q->elevator->type == NULL)
return NULL;