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authorYangbo Lu <yangbo.lu@nxp.com>2017-11-01 16:41:08 +0800
committerJohn Crispin <john@phrozen.org>2017-11-10 23:00:47 +0100
commit4e209e07f780211e1b5f1a4b16980481f167227f (patch)
tree2ea848fba8398e73255640e84ef9188359d8894d /target/linux/layerscape/patches-4.9/601-net-readd-skb_recycle.patch
parentbddffc5e7b74fb12626e004f839313404b2b667a (diff)
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layerscape: clean up kernel patches
A previous patch disaggregated kernel patch 601 intending to reverse the ndo_get_stats64 change, but it also dropped many other changes without a reason. This caused build issue for layerscape. This patch is to fix that with below steps. 1. Reversed patch "1c4415a layerscape: reverse changes to ndo_get_stats64", but kept kernel patch 701 which was a proper fix. 2. Reversed the ndo_get_stats64 change in kernel patch 601. 3. Renamed patch 601 (net patch) to 202 (core-linux patch). Maybe it's more proper. Fixes: 1c4415a679f9 ("layerscape: reverse changes to ndo_get_stats64") Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Diffstat (limited to 'target/linux/layerscape/patches-4.9/601-net-readd-skb_recycle.patch')
-rw-r--r--target/linux/layerscape/patches-4.9/601-net-readd-skb_recycle.patch66
1 files changed, 0 insertions, 66 deletions
diff --git a/target/linux/layerscape/patches-4.9/601-net-readd-skb_recycle.patch b/target/linux/layerscape/patches-4.9/601-net-readd-skb_recycle.patch
deleted file mode 100644
index 08aa2a0944..0000000000
--- a/target/linux/layerscape/patches-4.9/601-net-readd-skb_recycle.patch
+++ /dev/null
@@ -1,66 +0,0 @@
-From 9527ee5eb436ad773acc7320b372a5f4825a920d Mon Sep 17 00:00:00 2001
-From: Madalin Bucur <madalin.bucur@freescale.com>
-Date: Tue, 5 Jan 2016 12:12:07 +0200
-Subject: [PATCH] net: readd skb_recycle()
-
-Adding back skb_recycle() as it's used by the DPAA Ethernet driver.
-This was removed from the upstream kernel because it was lacking users.
-
-Signed-off-by: Madalin Bucur <madalin.bucur@freescale.com>
----
- include/linux/skbuff.h | 1 +
- net/core/skbuff.c | 26 ++++++++++++++++++++++++++
- 2 files changed, 27 insertions(+)
-
-diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
-index 32810f279f8e..a52a6fb0ac2e 100644
---- a/include/linux/skbuff.h
-+++ b/include/linux/skbuff.h
-@@ -902,6 +902,7 @@ void kfree_skb(struct sk_buff *skb);
- void kfree_skb_list(struct sk_buff *segs);
- void skb_tx_error(struct sk_buff *skb);
- void consume_skb(struct sk_buff *skb);
-+void skb_recycle(struct sk_buff *skb);
- void __kfree_skb(struct sk_buff *skb);
- extern struct kmem_cache *skbuff_head_cache;
-
-diff --git a/net/core/skbuff.c b/net/core/skbuff.c
-index fe008f1bd930..ab1038083df2 100644
---- a/net/core/skbuff.c
-+++ b/net/core/skbuff.c
-@@ -825,6 +825,32 @@ void napi_consume_skb(struct sk_buff *skb, int budget)
- }
- EXPORT_SYMBOL(napi_consume_skb);
-
-+/**
-+ * skb_recycle - clean up an skb for reuse
-+ * @skb: buffer
-+ *
-+ * Recycles the skb to be reused as a receive buffer. This
-+ * function does any necessary reference count dropping, and
-+ * cleans up the skbuff as if it just came from __alloc_skb().
-+ */
-+void skb_recycle(struct sk_buff *skb)
-+{
-+ struct skb_shared_info *shinfo;
-+ u8 head_frag = skb->head_frag;
-+
-+ skb_release_head_state(skb);
-+
-+ shinfo = skb_shinfo(skb);
-+ memset(shinfo, 0, offsetof(struct skb_shared_info, dataref));
-+ atomic_set(&shinfo->dataref, 1);
-+
-+ memset(skb, 0, offsetof(struct sk_buff, tail));
-+ skb->data = skb->head + NET_SKB_PAD;
-+ skb->head_frag = head_frag;
-+ skb_reset_tail_pointer(skb);
-+}
-+EXPORT_SYMBOL(skb_recycle);
-+
- /* Make sure a field is enclosed inside headers_start/headers_end section */
- #define CHECK_SKB_FIELD(field) \
- BUILD_BUG_ON(offsetof(struct sk_buff, field) < \
---
-2.11.1
-