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nss-clients: nss_qdisc: restore dev_base_lock usage for kernels < 6.10

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In kernels prior to 6.10, dev_base_lock was required to protect the
net_device list traversal. From 6.10 onward the lock was
dropped in favor of RCU.

To preserve previous behavior (i.e. 24.10-nss on kernel 6.6), restore
read_lock()/read_unlock() and wrap into kernel macros check.

Signed-off-by: Sean Khan <datapronix@protonmail.com>
This commit is contained in:
Sean Khan 2025-06-15 13:46:52 -04:00
parent 6b2c80e13a
commit 88ee738cb5
2 changed files with 18 additions and 8 deletions
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13
qca-nss-clients/patches-11.4/0031-kernel-6.12-support.patch
View File

@ -471,21 +471,26 @@
if (nss_qdisc_node_detach(&cl->nq, nq_old, &nim_detach,
--- a/nss_qdisc/nss_qdisc.c
+++ b/nss_qdisc/nss_qdisc.c
@@ -375,7 +375,7 @@ static int nss_qdisc_refresh_bshaper_ass
@@ -375,7 +375,9 @@ static int nss_qdisc_refresh_bshaper_ass
br_update.port_list_count = 0;
br_update.unassign_count = 0;
- read_lock(&dev_base_lock);
+ /* read_lock(&dev_base_lock); */
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(6, 10, 0))
+ read_lock(&dev_base_lock);
+#endif
dev = first_net_device(&init_net);
while(dev) {
@@ -422,7 +422,7 @@ static int nss_qdisc_refresh_bshaper_ass
@@ -422,7 +424,10 @@ static int nss_qdisc_refresh_bshaper_ass
nextdev:
dev = next_net_device(dev);
}
- read_unlock(&dev_base_lock);
+ /* read_unlock(&dev_base_lock); */
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(6, 10, 0))
+ read_unlock(&dev_base_lock);
+#endif
nss_qdisc_info("List count %d\n", br_update.port_list_count);

13
qca-nss-clients/patches/0031-kernel-6.12-support.patch
View File

@ -471,21 +471,26 @@
if (nss_qdisc_node_detach(&cl->nq, nq_old, &nim_detach,
--- a/nss_qdisc/nss_qdisc.c
+++ b/nss_qdisc/nss_qdisc.c
@@ -374,7 +374,7 @@ static int nss_qdisc_refresh_bshaper_ass
@@ -374,7 +374,9 @@ static int nss_qdisc_refresh_bshaper_ass
br_update.port_list_count = 0;
br_update.unassign_count = 0;
- read_lock(&dev_base_lock);
+ /* read_lock(&dev_base_lock); */
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(6, 10, 0))
+ read_lock(&dev_base_lock);
+#endif
dev = first_net_device(&init_net);
while(dev) {
@@ -421,7 +421,7 @@ static int nss_qdisc_refresh_bshaper_ass
@@ -421,7 +423,10 @@ static int nss_qdisc_refresh_bshaper_ass
nextdev:
dev = next_net_device(dev);
}
- read_unlock(&dev_base_lock);
+ /* read_unlock(&dev_base_lock); */
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(6, 10, 0))
+ read_unlock(&dev_base_lock);
+#endif
nss_qdisc_info("List count %d\n", br_update.port_list_count);