diff mbox series

[2/7] usb: gaget: use working speed to calcaulate network bitrate and qlen

Message ID 20230803051810.2974-3-quic_linyyuan@quicinc.com (mailing list archive)
State Superseded
Headers show
Series remove some usage of gadget_is_{*}speed() API | expand

Commit Message

Linyu Yuan Aug. 3, 2023, 5:18 a.m. UTC 
Take ecm_bitrate() as example, it will be called after gadget device
link speed negotiation, consider code
if (gadget_is_superspeed(g) && g->speed >= USB_SPEED_SUPER_PLUS),
if a gadget device link speed is USB_SPEED_SUPER_PLUS,
gadget_is_superspeed(g) must be true, or not it is cleary wrong
configuration of gadget max support speed.

Remove gadget_is_superspeed(g) checking should be safe, and remove other
similar operation in ncm, rndis, u_ether.

Signed-off-by: Linyu Yuan <quic_linyyuan@quicinc.com>
---
 drivers/usb/gadget/function/f_ecm.c   | 6 +++---
 drivers/usb/gadget/function/f_ncm.c   | 6 +++---
 drivers/usb/gadget/function/f_rndis.c | 6 +++---
 drivers/usb/gadget/function/u_ether.c | 5 ++---
 4 files changed, 11 insertions(+), 12 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/gadget/function/f_ecm.c b/drivers/usb/gadget/function/f_ecm.c
index 8da7d314602c..b1cb944559d4 100644
--- a/drivers/usb/gadget/function/f_ecm.c
+++ b/drivers/usb/gadget/function/f_ecm.c
@@ -68,11 +68,11 @@  static inline struct f_ecm *func_to_ecm(struct usb_function *f)
 /* peak (theoretical) bulk transfer rate in bits-per-second */
 static inline unsigned ecm_bitrate(struct usb_gadget *g)
 {
-	if (gadget_is_superspeed(g) && g->speed >= USB_SPEED_SUPER_PLUS)
+	if (g->speed >= USB_SPEED_SUPER_PLUS)
 		return 4250000000U;
-	else if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
+	else if (g->speed == USB_SPEED_SUPER)
 		return 3750000000U;
-	else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
+	else if (g->speed == USB_SPEED_HIGH)
 		return 13 * 512 * 8 * 1000 * 8;
 	else
 		return 19 * 64 * 1 * 1000 * 8;
diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c
index 424bb3b666db..e6dac5510540 100644
--- a/drivers/usb/gadget/function/f_ncm.c
+++ b/drivers/usb/gadget/function/f_ncm.c
@@ -85,11 +85,11 @@  static inline unsigned ncm_bitrate(struct usb_gadget *g)
 {
 	if (!g)
 		return 0;
-	else if (gadget_is_superspeed(g) && g->speed >= USB_SPEED_SUPER_PLUS)
+	else if (g->speed >= USB_SPEED_SUPER_PLUS)
 		return 4250000000U;
-	else if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
+	else if (g->speed == USB_SPEED_SUPER)
 		return 3750000000U;
-	else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
+	else if (g->speed == USB_SPEED_HIGH)
 		return 13 * 512 * 8 * 1000 * 8;
 	else
 		return 19 *  64 * 1 * 1000 * 8;
diff --git a/drivers/usb/gadget/function/f_rndis.c b/drivers/usb/gadget/function/f_rndis.c
index ee95e8f5f9d4..eff5d7cbce00 100644
--- a/drivers/usb/gadget/function/f_rndis.c
+++ b/drivers/usb/gadget/function/f_rndis.c
@@ -87,11 +87,11 @@  static inline struct f_rndis *func_to_rndis(struct usb_function *f)
 /* peak (theoretical) bulk transfer rate in bits-per-second */
 static unsigned int bitrate(struct usb_gadget *g)
 {
-	if (gadget_is_superspeed(g) && g->speed >= USB_SPEED_SUPER_PLUS)
+	if (g->speed >= USB_SPEED_SUPER_PLUS)
 		return 4250000000U;
-	if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
+	if (g->speed == USB_SPEED_SUPER)
 		return 3750000000U;
-	else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
+	else if (g->speed == USB_SPEED_HIGH)
 		return 13 * 512 * 8 * 1000 * 8;
 	else
 		return 19 * 64 * 1 * 1000 * 8;
diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c
index a366abb45623..4bb0553da658 100644
--- a/drivers/usb/gadget/function/u_ether.c
+++ b/drivers/usb/gadget/function/u_ether.c
@@ -93,11 +93,10 @@  struct eth_dev {
 
 #define DEFAULT_QLEN	2	/* double buffering by default */
 
-/* for dual-speed hardware, use deeper queues at high/super speed */
+/* use deeper queues at high/super speed */
 static inline int qlen(struct usb_gadget *gadget, unsigned qmult)
 {
-	if (gadget_is_dualspeed(gadget) && (gadget->speed == USB_SPEED_HIGH ||
-					    gadget->speed >= USB_SPEED_SUPER))
+	if (gadget->speed == USB_SPEED_HIGH || gadget->speed >= USB_SPEED_SUPER)
 		return qmult * DEFAULT_QLEN;
 	else
 		return DEFAULT_QLEN;