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mac80211: fix build error on kernel 6.6

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The virtio_find_vqs() ABI has been changed since the 6.11 kernel.
Switch back to using the old ABI to fix the build error:

../mac80211-regular/backports-6.11/drivers/net/wireless/virtual/mac80211_hwsim.c: In function 'init_vqs':
../mac80211-regular/backports-6.11/drivers/net/wireless/virtual/mac80211_hwsim.c:6632:31: error: array type has incomplete element type 'struct virtqueue_info'
 6632 |         struct virtqueue_info vqs_info[HWSIM_NUM_VQS] = {
      |                               ^~~~~~~~
../mac80211-regular/backports-6.11/drivers/net/wireless/virtual/mac80211_hwsim.c:6637:16: error: too few arguments to function 'virtio_find_vqs'
 6637 |         return virtio_find_vqs(vdev, HWSIM_NUM_VQS,
      |                ^~~~~~~~~~~~~~~
In file included from ../mac80211-regular/backports-6.11/drivers/net/wireless/virtual/mac80211_hwsim.c:38:
./include/linux/virtio_config.h:224:5: note: declared here
  224 | int virtio_find_vqs(struct virtio_device *vdev, unsigned nvqs,
      |     ^~~~~~~~~~~~~~~
../mac80211-regular/backports-6.11/drivers/net/wireless/virtual/mac80211_hwsim.c:6632:31: error: unused variable 'vqs_info' [-Werror=unused-variable]
 6632 |         struct virtqueue_info vqs_info[HWSIM_NUM_VQS] = {
      |                               ^~~~~~~~
../mac80211-regular/backports-6.11/drivers/net/wireless/virtual/mac80211_hwsim.c:6639:1: error: control reaches end of non-void function [-Werror=return-type]
 6639 | }
      | ^

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
This commit is contained in:
Shiji Yang 2024-09-27 09:51:22 +08:00 committed by Felix Fietkau
parent 9c413397d9
commit f03163adc5
1 changed files with 30 additions and 0 deletions
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30
package/kernel/mac80211/patches/build/235-fix-init_vqs-build-error-on-kernel-6.6.patch Normal file
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@ -0,0 +1,30 @@
--- a/drivers/net/wireless/virtual/mac80211_hwsim.c
+++ b/drivers/net/wireless/virtual/mac80211_hwsim.c
@@ -6629,6 +6629,7 @@ static void hwsim_virtio_rx_done(struct
static int init_vqs(struct virtio_device *vdev)
{
+#if LINUX_VERSION_IS_GEQ(6,11,0)
struct virtqueue_info vqs_info[HWSIM_NUM_VQS] = {
[HWSIM_VQ_TX] = { "tx", hwsim_virtio_tx_done },
[HWSIM_VQ_RX] = { "rx", hwsim_virtio_rx_done },
@@ -6636,6 +6637,19 @@ static int init_vqs(struct virtio_device
return virtio_find_vqs(vdev, HWSIM_NUM_VQS,
hwsim_vqs, vqs_info, NULL);
+#else /* Using the old ABI, copied from kernel 6.6 */
+ vq_callback_t *callbacks[HWSIM_NUM_VQS] = {
+ [HWSIM_VQ_TX] = hwsim_virtio_tx_done,
+ [HWSIM_VQ_RX] = hwsim_virtio_rx_done,
+ };
+ const char *names[HWSIM_NUM_VQS] = {
+ [HWSIM_VQ_TX] = "tx",
+ [HWSIM_VQ_RX] = "rx",
+ };
+
+ return virtio_find_vqs(vdev, HWSIM_NUM_VQS,
+ hwsim_vqs, callbacks, names, NULL);
+#endif
}
static int fill_vq(struct virtqueue *vq)