From: Gertjan van Wingerde <gwingerde@gmail.com>
Date: Fri, 4 Dec 2009 22:47:02 +0000 (+0100)
Subject: rt2x00: Remove SKBDESC_L2_PADDED flag.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=354e39dbb19f29ef28a9c2db9e55ff2a7435b35a;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

rt2x00: Remove SKBDESC_L2_PADDED flag.

With the improved L2 padding code, this flag is no longer necessary, as the
rt2x00queue_remove_l2pad is capable of detecting by itself if L2 padding is
applied.
For received frames the RX descriptor flag is still being checked.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <ivdoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 6fcb2bb840b2..458378c4e500 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -835,7 +835,6 @@ static void rt2800pci_fill_rxdone(struct queue_entry *entry,
 				  struct rxdone_entry_desc *rxdesc)
 {
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
-	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
 	struct queue_entry_priv_pci *entry_priv = entry->priv_data;
 	__le32 *rxd = entry_priv->desc;
 	__le32 *rxwi = (__le32 *)entry->skb->data;
@@ -883,10 +882,8 @@ static void rt2800pci_fill_rxdone(struct queue_entry *entry,
 	if (rt2x00_get_field32(rxd3, RXD_W3_MY_BSS))
 		rxdesc->dev_flags |= RXDONE_MY_BSS;
 
-	if (rt2x00_get_field32(rxd3, RXD_W3_L2PAD)) {
+	if (rt2x00_get_field32(rxd3, RXD_W3_L2PAD))
 		rxdesc->dev_flags |= RXDONE_L2PAD;
-		skbdesc->flags |= SKBDESC_L2_PADDED;
-	}
 
 	if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI))
 		rxdesc->flags |= RX_FLAG_SHORT_GI;
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 1db8667a6ff1..13baec485eb6 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -625,10 +625,8 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
 	if (rt2x00_get_field32(rxd0, RXINFO_W0_MY_BSS))
 		rxdesc->dev_flags |= RXDONE_MY_BSS;
 
-	if (rt2x00_get_field32(rxd0, RXINFO_W0_L2PAD)) {
+	if (rt2x00_get_field32(rxd0, RXINFO_W0_L2PAD))
 		rxdesc->dev_flags |= RXDONE_L2PAD;
-		skbdesc->flags |= SKBDESC_L2_PADDED;
-	}
 
 	if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI))
 		rxdesc->flags |= RX_FLAG_SHORT_GI;
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 21d58769a1a7..719f4aebcaf6 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -177,7 +177,6 @@ void rt2x00queue_align_payload(struct sk_buff *skb, unsigned int header_length)
 
 void rt2x00queue_insert_l2pad(struct sk_buff *skb, unsigned int header_length)
 {
-	struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
 	unsigned int frame_length = skb->len;
 	unsigned int header_align = ALIGN_SIZE(skb, 0);
 	unsigned int payload_align = ALIGN_SIZE(skb, header_length);
@@ -198,7 +197,6 @@ void rt2x00queue_insert_l2pad(struct sk_buff *skb, unsigned int header_length)
 		 */
 		skb_push(skb, header_align);
 		memmove(skb->data, skb->data + header_align, header_length);
-		skbdesc->flags |= SKBDESC_L2_PADDED;
 	} else {
 		/*
 		 *
@@ -217,16 +215,14 @@ void rt2x00queue_insert_l2pad(struct sk_buff *skb, unsigned int header_length)
 			skb->data + header_length + l2pad + payload_align,
 			frame_length - header_length);
 		skb_trim(skb, frame_length + l2pad);
-		skbdesc->flags |= SKBDESC_L2_PADDED;
 	}
 }
 
 void rt2x00queue_remove_l2pad(struct sk_buff *skb, unsigned int header_length)
 {
-	struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
 	unsigned int l2pad = L2PAD_SIZE(header_length);
 
-	if (!l2pad || (skbdesc->flags & SKBDESC_L2_PADDED))
+	if (!l2pad)
 		return;
 
 	memmove(skb->data + l2pad, skb->data, header_length);
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index 70775e5ba1ac..c1e482bb37b3 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -92,8 +92,6 @@ enum data_queue_qid {
  * @SKBDESC_DMA_MAPPED_TX: &skb_dma field has been mapped for TX
  * @SKBDESC_IV_STRIPPED: Frame contained a IV/EIV provided by
  *	mac80211 but was stripped for processing by the driver.
- * @SKBDESC_L2_PADDED: Payload has been padded for 4-byte alignment,
- *	the padded bytes are located between header and payload.
  * @SKBDESC_NOT_MAC80211: Frame didn't originate from mac80211,
  *	don't try to pass it back.
  */
@@ -101,8 +99,7 @@ enum skb_frame_desc_flags {
 	SKBDESC_DMA_MAPPED_RX = 1 << 0,
 	SKBDESC_DMA_MAPPED_TX = 1 << 1,
 	SKBDESC_IV_STRIPPED = 1 << 2,
-	SKBDESC_L2_PADDED = 1 << 3,
-	SKBDESC_NOT_MAC80211 = 1 << 4,
+	SKBDESC_NOT_MAC80211 = 1 << 3,
 };
 
 /**