From: Sasha Levin <Alexander.Levin@microsoft.com>
To: "stable@vger.kernel.org" <stable@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: Huazhong Tan <tanhuazhong@huawei.com>,
Salil Mehta <salil.mehta@huawei.com>,
"David S . Miller" <davem@davemloft.net>,
Sasha Levin <Alexander.Levin@microsoft.com>
Subject: [PATCH AUTOSEL 4.18 25/56] net: hns: fix skb->truesize underestimation
Date: Thu, 20 Sep 2018 02:47:44 +0000 [thread overview]
Message-ID: <20180920024716.58490-25-alexander.levin@microsoft.com> (raw)
In-Reply-To: <20180920024716.58490-1-alexander.levin@microsoft.com>
From: Huazhong Tan <tanhuazhong@huawei.com>
[ Upstream commit b1ccd4c0ab6ef499f47dd84ed4920502a7147bba ]
skb->truesize is not meant to be tracking amount of used bytes in a skb,
but amount of reserved/consumed bytes in memory.
For instance, if we use a single byte in last page fragment, we have to
account the full size of the fragment.
So skb_add_rx_frag needs to calculate the length of the entire buffer into
turesize.
Fixes: 9cbe9fd5214e ("net: hns: optimize XGE capability by reducing cpu usage")
Signed-off-by: Huazhong tan <tanhuazhong@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
drivers/net/ethernet/hisilicon/hns/hns_enet.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index ef9ef703d13a..ef994a715f93 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -530,7 +530,7 @@ static void hns_nic_reuse_page(struct sk_buff *skb, int i,
}
skb_add_rx_frag(skb, i, desc_cb->priv, desc_cb->page_offset + pull_len,
- size - pull_len, truesize - pull_len);
+ size - pull_len, truesize);
/* avoid re-using remote pages,flag default unreuse */
if (unlikely(page_to_nid(desc_cb->priv) != numa_node_id()))
--
2.17.1
next prev parent reply other threads:[~2018-09-20 2:47 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-20 2:47 [PATCH AUTOSEL 4.18 01/56] ARM: OMAP2+: Fix null hwmod for ti-sysc debug Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 02/56] ARM: OMAP2+: Fix module address for modules using mpu_rt_idx Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 03/56] bus: ti-sysc: Fix module register ioremap for larger offsets Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 04/56] qed: Wait for ready indication before rereading the shmem Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 05/56] qed: Wait for MCP halt and resume commands to take place Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 06/56] qed: Prevent a possible deadlock during driver load and unload Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 07/56] qed: Avoid sending mailbox commands when MFW is not responsive Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 08/56] thermal: of-thermal: disable passive polling when thermal zone is disabled Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 09/56] isofs: reject hardware sector size > 2048 bytes Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 10/56] mmc: atmel-mci: fix bad logic of sg_copy_{from,to}_buffer conversion Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 11/56] mmc: android-goldfish: " Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 12/56] bus: ti-sysc: Fix no_console_suspend handling Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 13/56] ARM: dts: omap4-droid4: fix vibrations on Droid 4 Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 15/56] bpf, sockmap: fix sock hash count in alloc_sock_hash_elem Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 14/56] bpf, sockmap: fix sock_hash_alloc and reject zero-sized keys Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 16/56] tls: possible hang when do_tcp_sendpages hits sndbuf is full case Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 17/56] bpf: sockmap: write_space events need to be passed to TCP handler Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 19/56] drm/amdgpu: fix preamble handling Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 18/56] drm/amdgpu: fix VM clearing for the root PD Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 21/56] net/ncsi: Fixup .dumpit message flags and ID check in Netlink handler Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 20/56] amdgpu: fix multi-process hang issue Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 22/56] tcp_bbr: add bbr_check_probe_rtt_done() helper Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 24/56] net: hns: fix length and page_offset overflow when CONFIG_ARM64_64K_PAGES Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 23/56] tcp_bbr: in restart from idle, see if we should exit PROBE_RTT Sasha Levin
2018-09-20 2:47 ` Sasha Levin [this message]
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 26/56] net: hns3: fix page_offset overflow when CONFIG_ARM64_64K_PAGES Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 28/56] ice: Report stats for allocated queues via ethtool stats Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 27/56] ice: Fix multiple static analyser warnings Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 29/56] ice: Clean control queues only when they are initialized Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 30/56] ice: Fix bugs in control queue processing Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 31/56] ice: Use order_base_2 to calculate higher power of 2 Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 32/56] ice: Set VLAN flags correctly Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 33/56] tools: bpftool: return from do_event_pipe() on bad arguments Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 34/56] ice: Fix a few null pointer dereference issues Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 36/56] e1000: check on netif_running() before calling e1000_up() Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 35/56] ice: Fix potential return of uninitialized value Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 37/56] e1000: ensure to free old tx/rx rings in set_ringparam() Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 38/56] ixgbe: fix driver behaviour after issuing VFLR Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 39/56] i40e: Fix for Tx timeouts when interface is brought up if DCB is enabled Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 41/56] crypto: chtls - fix null dereference chtls_free_uld() Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 40/56] i40e: fix condition of WARN_ONCE for stat strings Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 42/56] crypto: cavium/nitrox - fix for command corruption in queue full case with backlog submissions Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 43/56] hwmon: (ina2xx) fix sysfs shunt resistor read access Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 44/56] hwmon: (adt7475) Make adt7475_read_word() return errors Sasha Levin
2018-09-20 2:47 ` [PATCH AUTOSEL 4.18 45/56] Revert "ARM: dts: imx7d: Invert legacy PCI irq mapping" Sasha Levin
2018-09-20 2:48 ` [PATCH AUTOSEL 4.18 47/56] drm/amdgpu: Update power state at the end of smu hw_init Sasha Levin
2018-09-20 2:48 ` [PATCH AUTOSEL 4.18 46/56] drm/amdgpu: Enable/disable gfx PG feature in rlc safe mode Sasha Levin
2018-09-20 2:48 ` [PATCH AUTOSEL 4.18 48/56] ata: ftide010: Add a quirk for SQ201 Sasha Levin
2018-09-20 2:48 ` [PATCH AUTOSEL 4.18 49/56] nvme-fcloop: Fix dropped LS's to removed target port Sasha Levin
2018-09-20 2:48 ` [PATCH AUTOSEL 4.18 51/56] drm/amdgpu: Need to set moved to true when evict bo Sasha Levin
2018-09-20 2:48 ` [PATCH AUTOSEL 4.18 50/56] ARM: dts: omap4-droid4: Fix emmc errors seen on some devices Sasha Levin
2018-09-20 2:48 ` [PATCH AUTOSEL 4.18 52/56] arm/arm64: smccc-1.1: Make return values unsigned long Sasha Levin
2018-09-20 2:48 ` [PATCH AUTOSEL 4.18 53/56] arm/arm64: smccc-1.1: Handle function result as parameters Sasha Levin
2018-09-20 2:48 ` [PATCH AUTOSEL 4.18 54/56] i2c: i801: Allow ACPI AML access I/O ports not reserved for SMBus Sasha Levin
2018-09-20 2:48 ` [PATCH AUTOSEL 4.18 55/56] clk: x86: Set default parent to 48Mhz Sasha Levin
2018-09-20 2:48 ` [PATCH AUTOSEL 4.18 56/56] x86/pti: Fix section mismatch warning/error Sasha Levin
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