diff options
| -rw-r--r-- | drivers/crypto/intel/qat/qat_common/adf_transport_debug.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/crypto/intel/qat/qat_common/adf_transport_debug.c b/drivers/crypto/intel/qat/qat_common/adf_transport_debug.c index 621b5d3dfcef..6c22bc9b28e4 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_transport_debug.c +++ b/drivers/crypto/intel/qat/qat_common/adf_transport_debug.c @@ -10,16 +10,21 @@ static DEFINE_MUTEX(ring_read_lock); static DEFINE_MUTEX(bank_read_lock); +#define ADF_RING_NUM_MSGS(ring) \ + (ADF_SIZE_TO_RING_SIZE_IN_BYTES(ring->ring_size) / \ + ADF_MSG_SIZE_TO_BYTES(ring->msg_size)) + static void *adf_ring_start(struct seq_file *sfile, loff_t *pos) { struct adf_etr_ring_data *ring = sfile->private; + unsigned int num_msg = ADF_RING_NUM_MSGS(ring); + loff_t val = *pos; mutex_lock(&ring_read_lock); - if (*pos == 0) + if (val == 0) return SEQ_START_TOKEN; - if (*pos >= (ADF_SIZE_TO_RING_SIZE_IN_BYTES(ring->ring_size) / - ADF_MSG_SIZE_TO_BYTES(ring->msg_size))) + if (val >= num_msg) return NULL; return ring->base_addr + @@ -29,15 +34,15 @@ static void *adf_ring_start(struct seq_file *sfile, loff_t *pos) static void *adf_ring_next(struct seq_file *sfile, void *v, loff_t *pos) { struct adf_etr_ring_data *ring = sfile->private; + unsigned int num_msg = ADF_RING_NUM_MSGS(ring); + loff_t val = *pos; + + (*pos)++; - if (*pos >= (ADF_SIZE_TO_RING_SIZE_IN_BYTES(ring->ring_size) / - ADF_MSG_SIZE_TO_BYTES(ring->msg_size))) { - (*pos)++; + if (val >= num_msg) return NULL; - } - return ring->base_addr + - (ADF_MSG_SIZE_TO_BYTES(ring->msg_size) * (*pos)++); + return ring->base_addr + (ADF_MSG_SIZE_TO_BYTES(ring->msg_size) * val); } static int adf_ring_show(struct seq_file *sfile, void *v) |