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74d00a8c38
* properly format/comment all patches * merge debloat patches * merge Kconfig patches * merge swconfig patches * merge hotplug patches * drop 200-fix_localversion.patch - upstream * drop 222-arm_zimage_none.patch - unused * drop 252-mv_cesa_depends.patch - no longer required * drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused * drop 661-fq_codel_keep_dropped_stats.patch - outdated * drop 702-phy_add_aneg_done_function.patch - upstream * drop 840-rtc7301.patch - unused * drop 841-rtc_pt7c4338.patch - upstream * drop 921-use_preinit_as_init.patch - unused * drop spio-gpio-old and gpio-mmc - unused Signed-off-by: John Crispin <john@phrozen.org>
71 lines
2.3 KiB
Diff
71 lines
2.3 KiB
Diff
From 40be0dda0725886b623d67868db3219a2e74683b Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Sat, 28 Jan 2017 15:15:42 +0100
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Subject: [PATCH] net: add devm version of alloc_etherdev_mqs function
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This patch adds devm_alloc_etherdev_mqs function and devm_alloc_etherdev
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macro. These can be used for simpler netdev allocation without having to
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care about calling free_netdev.
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Thanks to this change drivers, their error paths and removal paths may
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get simpler by a bit.
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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include/linux/etherdevice.h | 5 +++++
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net/ethernet/eth.c | 28 ++++++++++++++++++++++++++++
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2 files changed, 33 insertions(+)
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--- a/include/linux/etherdevice.h
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+++ b/include/linux/etherdevice.h
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@@ -51,6 +51,11 @@ struct net_device *alloc_etherdev_mqs(in
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#define alloc_etherdev(sizeof_priv) alloc_etherdev_mq(sizeof_priv, 1)
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#define alloc_etherdev_mq(sizeof_priv, count) alloc_etherdev_mqs(sizeof_priv, count, count)
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+struct net_device *devm_alloc_etherdev_mqs(struct device *dev, int sizeof_priv,
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+ unsigned int txqs,
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+ unsigned int rxqs);
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+#define devm_alloc_etherdev(dev, sizeof_priv) devm_alloc_etherdev_mqs(dev, sizeof_priv, 1, 1)
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+
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struct sk_buff **eth_gro_receive(struct sk_buff **head,
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struct sk_buff *skb);
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int eth_gro_complete(struct sk_buff *skb, int nhoff);
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--- a/net/ethernet/eth.c
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+++ b/net/ethernet/eth.c
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@@ -388,6 +388,34 @@ struct net_device *alloc_etherdev_mqs(in
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}
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EXPORT_SYMBOL(alloc_etherdev_mqs);
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+static void devm_free_netdev(struct device *dev, void *res)
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+{
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+ free_netdev(*(struct net_device **)res);
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+}
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+
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+struct net_device *devm_alloc_etherdev_mqs(struct device *dev, int sizeof_priv,
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+ unsigned int txqs, unsigned int rxqs)
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+{
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+ struct net_device **dr;
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+ struct net_device *netdev;
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+
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+ dr = devres_alloc(devm_free_netdev, sizeof(*dr), GFP_KERNEL);
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+ if (!dr)
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+ return NULL;
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+
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+ netdev = alloc_etherdev_mqs(sizeof_priv, txqs, rxqs);
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+ if (!netdev) {
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+ devres_free(dr);
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+ return NULL;
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+ }
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+
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+ *dr = netdev;
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+ devres_add(dev, dr);
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+
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+ return netdev;
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+}
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+EXPORT_SYMBOL(devm_alloc_etherdev_mqs);
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+
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ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len)
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{
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return scnprintf(buf, PAGE_SIZE, "%*phC\n", len, addr);
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