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authorJakub Kicinski <kuba@kernel.org>2026-06-15 12:44:09 -0700
committerJakub Kicinski <kuba@kernel.org>2026-06-16 08:53:52 -0700
commitb20aa9eded107bc78b7e54e64ccf79fbaeda9ecd (patch)
treee057c21ad06ce8bdf32fe4063d91dca7f19add18
parentc1468145ce756e7bd8d814728af19f4261939876 (diff)
atm: remove the unused send_oam / push_oam callbacks
The atmdev_ops::send_oam device operation and the atm_vcc::push_oam callback were the kernel's interface for raw F4/F5 OAM cell exchange. Nothing assigns them a non-NULL value and nothing ever invokes them: the core only ever initialises push_oam to NULL (in vcc_create() and the AAL init helpers) and the Solos driver only lists send_oam = NULL for documentation. The drivers that actually drove OAM through these hooks were removed along with the legacy ATM adapters. Drop both callbacks and the NULL initialisers. Link: https://patch.msgid.link/20260615194416.752559-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/atm/solos-pci.c1
-rw-r--r--include/linux/atmdev.h8
-rw-r--r--net/atm/common.c1
-rw-r--r--net/atm/raw.c2
4 files changed, 0 insertions, 12 deletions
diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
index bcb1353877e4..4ad170a858ee 100644
--- a/drivers/atm/solos-pci.c
+++ b/drivers/atm/solos-pci.c
@@ -1180,7 +1180,6 @@ static const struct atmdev_ops fpga_ops = {
.close = pclose,
.ioctl = NULL,
.send = psend,
- .send_oam = NULL,
.phy_put = NULL,
.phy_get = NULL,
.change_qos = NULL,
diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
index 82a32526df64..71c5bf6950e3 100644
--- a/include/linux/atmdev.h
+++ b/include/linux/atmdev.h
@@ -104,7 +104,6 @@ struct atm_vcc {
void (*release_cb)(struct atm_vcc *vcc); /* release_sock callback */
void (*push)(struct atm_vcc *vcc,struct sk_buff *skb);
void (*pop)(struct atm_vcc *vcc,struct sk_buff *skb); /* optional */
- int (*push_oam)(struct atm_vcc *vcc,void *cell);
int (*send)(struct atm_vcc *vcc,struct sk_buff *skb);
void *dev_data; /* per-device data */
void *proto_data; /* per-protocol data */
@@ -170,12 +169,6 @@ struct atm_dev {
struct list_head dev_list; /* linkage */
};
-
-/* OF: send_Oam Flags */
-
-#define ATM_OF_IMMED 1 /* Attempt immediate delivery */
-#define ATM_OF_INRATE 2 /* Attempt in-rate delivery */
-
struct atmdev_ops { /* only send is required */
void (*dev_close)(struct atm_dev *dev);
int (*open)(struct atm_vcc *vcc);
@@ -188,7 +181,6 @@ struct atmdev_ops { /* only send is required */
int (*pre_send)(struct atm_vcc *vcc, struct sk_buff *skb);
int (*send)(struct atm_vcc *vcc,struct sk_buff *skb);
int (*send_bh)(struct atm_vcc *vcc, struct sk_buff *skb);
- int (*send_oam)(struct atm_vcc *vcc,void *cell,int flags);
void (*phy_put)(struct atm_dev *dev,unsigned char value,
unsigned long addr);
unsigned char (*phy_get)(struct atm_dev *dev,unsigned long addr);
diff --git a/net/atm/common.c b/net/atm/common.c
index 913f7e32ce41..c6e87fc9bbfc 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -163,7 +163,6 @@ int vcc_create(struct net *net, struct socket *sock, int protocol, int family, i
vcc->push = NULL;
vcc->pop = NULL;
vcc->owner = NULL;
- vcc->push_oam = NULL;
vcc->release_cb = NULL;
vcc->vpi = vcc->vci = 0; /* no VCI/VPI yet */
vcc->atm_options = vcc->aal_options = 0;
diff --git a/net/atm/raw.c b/net/atm/raw.c
index 0d36aeb3671b..1d6ac7b0c4e5 100644
--- a/net/atm/raw.c
+++ b/net/atm/raw.c
@@ -63,7 +63,6 @@ int atm_init_aal0(struct atm_vcc *vcc)
{
vcc->push = atm_push_raw;
vcc->pop = atm_pop_raw;
- vcc->push_oam = NULL;
vcc->send = atm_send_aal0;
return 0;
}
@@ -72,7 +71,6 @@ int atm_init_aal5(struct atm_vcc *vcc)
{
vcc->push = atm_push_raw;
vcc->pop = atm_pop_raw;
- vcc->push_oam = NULL;
if (vcc->dev->ops->send_bh)
vcc->send = vcc->dev->ops->send_bh;
else