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Filename Latest commit message Latest commit date
Yunsheng Lin aa9d22dd45 net: hns3: fix error handling for desc filling
When desc filling fails in hns3_nic_net_xmit, it will call
hns3_clear_desc to unmap the dma mapping. But currently the
ring->next_to_use points to the desc where the desc filling
or dma mapping return error, which means the desc that
ring->next_to_use points to has not done the dma mapping,
the desc that need unmapping is before the ring->next_to_use.

This patch fixes it by calling ring_ptr_move_bw(next_to_use)
before doing unmapping operation, and set desc_cb->dma to
zero to avoid freeing it again when unloading.

Also, when filling skb head or frag fails, both need to unmap
all the way back to next_to_use_head, so remove one desc filling
error handling.

Fixes: 76ad4f0ee7 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-07 10:37:13 -07:00
arch powerpc: tsi108: support of_get_mac_address new ERR_PTR error 2019-05-05 21:47:07 -07:00
block
certs
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
Documentation Documentation: net: dsa: sja1105: Add info about supported traffic modes 2019-05-05 21:52:42 -07:00
drivers net: hns3: fix error handling for desc filling 2019-05-07 10:37:13 -07:00
fs Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
include net: dsa: sja1105: Add support for traffic through standalone ports 2019-05-05 21:52:42 -07:00
init
ipc
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
lib netlink: add validation of NLA_F_NESTED flag 2019-05-04 01:27:11 -04:00
LICENSES
mm
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2019-05-07 09:29:16 -07:00
samples
scripts kbuild: tolerate missing pahole when generating BTF 2019-05-06 10:18:47 +02:00
security
sound
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2019-05-07 09:29:16 -07:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS wireless-drivers-next patches for 5.2 2019-05-05 10:20:53 -07:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.