Commit Graph

15 Commits

Author SHA1 Message Date
Holger Brunck
66bb144bd9 net/wan/fsl_ucc_hdlc: fix unitialized variable warnings
This fixes the following compiler warnings:
drivers/net/wan/fsl_ucc_hdlc.c: In function 'ucc_hdlc_poll':
warning: 'skb' may be used uninitialized in this function
[-Wmaybe-uninitialized]
  skb->mac_header = skb->data - skb->head;

and

drivers/net/wan/fsl_ucc_hdlc.c: In function 'ucc_hdlc_probe':
drivers/net/wan/fsl_ucc_hdlc.c:1127:3: warning: 'utdm' may be used
uninitialized in this function [-Wmaybe-uninitialized]
   kfree(utdm);

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Cc: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-18 10:28:38 -04:00
Holger Brunck
f089785479 net/wan/fsl_ucc_hdlc: cleanup debug traces
Some of the tracing seems to be remaining traces for basic driver
development. They can be removed now, as they cause noisy printouts.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Cc: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-18 10:28:37 -04:00
Zhao Qiang
02bb56ddc6 ucc/hdlc: fix two little issue
1. modify bd_status from u32 to u16 in function hdlc_rx_done,
because bd_status register is 16bits
2. write bd_length register before writing bd_status register

Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-13 21:53:48 -07:00
Valentin Longchamp
74179d44b6 net/wan: add MODULE_LICENSE for fsl_ucc_hdlc
It is required to build it as a module.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-17 15:20:43 -05:00
Eric Dumazet
6ad20165d3 drivers: net: generalize napi_complete_done()
napi_complete_done() allows to opt-in for gro_flush_timeout,
added back in linux-3.19, commit 3b47d30396
("net: gro: add a per device gro flush timer")

This allows for more efficient GRO aggregation without
sacrifying latencies.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-30 15:10:42 -05:00
Jarod Wilson
8b6b4135e4 net: use core MTU range checking in WAN drivers
- set min/max_mtu in all hdlc drivers, remove hdlc_change_mtu
- sent max_mtu in lec driver, remove lec_change_mtu
- set min/max_mtu in x25_asy driver

CC: netdev@vger.kernel.org
CC: Krzysztof Halasa <khc@pm.waw.pl>
CC: Krzysztof Halasa <khalasa@piap.pl>
CC: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
CC: Francois Romieu <romieu@fr.zoreil.com>
CC: Kevin Curtis <kevin.curtis@farsite.co.uk>
CC: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-20 14:51:09 -04:00
Christophe Jaillet
776482cd8d wan/fsl_ucc_hdlc: Fix size used in dma_free_coherent()
Size used with 'dma_alloc_coherent()' and 'dma_free_coherent()' should be
consistent.
Here, the size of a pointer is used in dma_alloc... and the size of the
pointed structure is used in dma_free...

This has been spotted with coccinelle, using the following script:
////////////////////
@r@
expression x0, x1, y0, y1, z0, z1, t0, t1, ret;
@@

*   ret = dma_alloc_coherent(x0, y0, z0, t0);
    ...
*   dma_free_coherent(x1, y1, ret, t1);

@script:python@
y0 << r.y0;
y1 << r.y1;

@@
if y1.find(y0) == -1:
 print "WARNING: sizes look different:  '%s'   vs   '%s'" % (y0, y1)
////////////////////

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-08 00:04:48 -04:00
Colin Ian King
24a24d07d6 wan/fsl_ucc_hdlc: fix spelling mistake "prameter" -> "parameter"
Trivial fix to spelling mistake in dev_err message.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-28 23:41:46 -04:00
xypron.glpk@gmx.de
8c57a3a7fa wan/fsl_ucc_hdlc: avoid possible NULL pointer dereference
All assignments to components of priv should only
occur after the check if prif is NULL.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 13:32:52 -07:00
Wei Yongjun
459421cc81 wan/fsl_ucc_hdlc: use module_platform_driver to simplify the code
module_platform_driver() makes the code simpler by eliminating
boilerplate code.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-20 14:46:00 -07:00
Wei Yongjun
9d5658e65c wan/fsl_ucc_hdlc: remove .owner field for driver
Remove .owner field if calls are used which set it automatically.

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-20 14:46:00 -07:00
Zhao Qiang
1efb597d8b wan/fsl_ucc_hdlc: rewrite error handling to make it clearer
It was used err_xxx for labeled statement, it is
not easy to understand, now use free_xxx for labeled
statement.

Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-16 20:22:02 -07:00
Zhao Qiang
18210510cf wan/fsl_ucc_hdlc: remove reduplicative freed memory 'uhdlc_priv'
'uhdlc_priv' has freed twice, drop the first one.

Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-16 20:22:02 -07:00
Dan Carpenter
2f43b9beea wan/fsl_ucc_hdlc: info leak in uhdlc_ioctl()
There is a 2 byte struct whole after line.loopback so we need to clear
that out to avoid disclosing stack information.

Fixes: c19b6d246a ('drivers/net: support hdlc function for QE-UCC')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 11:42:42 -07:00
Zhao Qiang
c19b6d246a drivers/net: support hdlc function for QE-UCC
The driver add hdlc support for Freescale QUICC Engine.
It support NMSI and TSA mode.

Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-07 15:56:31 -07:00