This is a note to let you know that I've just added the patch titled
misc: st_core: Do not call kfree_skb() under spin_lock_irqsave()
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
misc-st_core-do-not-call-kfree_skb-under-spin_lock_i.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 3034f9d8d4518b6cbc95622dd29c3f3286c54382
Author: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
Date: Wed Aug 23 11:50:20 2023 +0800
misc: st_core: Do not call kfree_skb() under spin_lock_irqsave()
[ Upstream commit 4d08c3d12b61022501989f9f071514d2d6f77c47 ]
It is not allowed to call kfree_skb() from hardware interrupt
context or with hardware interrupts being disabled.
So replace kfree_skb() with dev_kfree_skb_irq() under
spin_lock_irqsave(). Compile tested only.
Fixes: 53618cc1e51e ("Staging: sources for ST core")
Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230823035020.1281892-1-ruanjinjie@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c
index 7f6976a9f508b..48e0f8377e659 100644
--- a/drivers/misc/ti-st/st_core.c
+++ b/drivers/misc/ti-st/st_core.c
@@ -15,6 +15,7 @@
#include <linux/skbuff.h>
#include <linux/ti_wilink_st.h>
+#include <linux/netdevice.h>
extern void st_kim_recv(void *, const unsigned char *, long);
void st_int_recv(void *, const unsigned char *, long);
@@ -435,7 +436,7 @@ static void st_int_enqueue(struct st_data_s *st_gdata, struct sk_buff *skb)
case ST_LL_AWAKE_TO_ASLEEP:
pr_err("ST LL is illegal state(%ld),"
"purging received skb.", st_ll_getstate(st_gdata));
- kfree_skb(skb);
+ dev_kfree_skb_irq(skb);
break;
case ST_LL_ASLEEP:
skb_queue_tail(&st_gdata->tx_waitq, skb);
@@ -444,7 +445,7 @@ static void st_int_enqueue(struct st_data_s *st_gdata, struct sk_buff *skb)
default:
pr_err("ST LL is illegal state(%ld),"
"purging received skb.", st_ll_getstate(st_gdata));
- kfree_skb(skb);
+ dev_kfree_skb_irq(skb);
break;
}
@@ -498,7 +499,7 @@ void st_tx_wakeup(struct st_data_s *st_data)
spin_unlock_irqrestore(&st_data->lock, flags);
break;
}
- kfree_skb(skb);
+ dev_kfree_skb_irq(skb);
spin_unlock_irqrestore(&st_data->lock, flags);
}
/* if wake-up is set in another context- restart sending */
