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authorJulian Wiedmann <jwi@linux.ibm.com>2019-02-15 19:22:26 +0100
committerDavid S. Miller <davem@davemloft.net>2019-02-15 20:35:29 -0800
commitbb92d3f8667f674ae6b2150406f19b33d5ad5f85 (patch)
treed2e20fcfff44376f8ebd96c4fb0267c0dfc9d1dc /drivers/s390
parent0aa35a368933873dbab2d2ab54e5d05d3b089245 (diff)
downloadlinux-bb92d3f8667f674ae6b2150406f19b33d5ad5f85.tar.bz2
s390/qeth: use a static Output Queue array
qeth dynamically allocates an array for storing pointers to its Output Queue structures. Switch this to a static array - we are currently limited to 4 Output Queues, so shrinking the qeth_qdio_info struct by just a few bytes doesn't justify the additional complexity. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/net/qeth_core.h2
-rw-r--r--drivers/s390/net/qeth_core_main.c21
2 files changed, 7 insertions, 16 deletions
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index 18696ffb662d..2ea5d7c0b94c 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -528,7 +528,7 @@ struct qeth_qdio_info {
/* output */
int no_out_queues;
- struct qeth_qdio_out_q **out_qs;
+ struct qeth_qdio_out_q *out_qs[QETH_MAX_QUEUES];
struct qdio_outbuf_state *out_bufstates;
/* priority queueing */
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 5ca934775c42..d01a4aded4cc 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -2433,12 +2433,6 @@ static int qeth_alloc_qdio_buffers(struct qeth_card *card)
goto out_freeinq;
/* outbound */
- card->qdio.out_qs =
- kcalloc(card->qdio.no_out_queues,
- sizeof(struct qeth_qdio_out_q *),
- GFP_KERNEL);
- if (!card->qdio.out_qs)
- goto out_freepool;
for (i = 0; i < card->qdio.no_out_queues; ++i) {
card->qdio.out_qs[i] = qeth_alloc_qdio_out_buf();
if (!card->qdio.out_qs[i])
@@ -2468,11 +2462,10 @@ out_freeoutqbufs:
card->qdio.out_qs[i]->bufs[j] = NULL;
}
out_freeoutq:
- while (i > 0)
+ while (i > 0) {
qeth_free_output_queue(card->qdio.out_qs[--i]);
- kfree(card->qdio.out_qs);
- card->qdio.out_qs = NULL;
-out_freepool:
+ card->qdio.out_qs[i] = NULL;
+ }
qeth_free_buffer_pool(card);
out_freeinq:
qeth_free_qdio_queue(card->qdio.in_q);
@@ -2501,11 +2494,9 @@ static void qeth_free_qdio_buffers(struct qeth_card *card)
/* inbound buffer pool */
qeth_free_buffer_pool(card);
/* free outbound qdio_qs */
- if (card->qdio.out_qs) {
- for (i = 0; i < card->qdio.no_out_queues; i++)
- qeth_free_output_queue(card->qdio.out_qs[i]);
- kfree(card->qdio.out_qs);
- card->qdio.out_qs = NULL;
+ for (i = 0; i < card->qdio.no_out_queues; i++) {
+ qeth_free_output_queue(card->qdio.out_qs[i]);
+ card->qdio.out_qs[i] = NULL;
}
}