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  1. 10 7月, 2014 4 次提交
  3. 09 7月, 2014 7 次提交
  5. 08 7月, 2014 4 次提交
  7. 03 7月, 2014 7 次提交
    • V
      net: stmmac: Remove unneeded I/O read caught by cppcheck · c8df8ce3
      由 Vince Bridgers 提交于 
      Cppcheck found a case where a local variable was being assigned a value,
but not used. There seems to be no reason to read this register before
assigning a new value, so addressing thie issue.

cppcheck --force --enable=all --inline-suppr . shows ...

Variable 'value' is reassigned a value before the old one has been used.
Signed-off-by: NVince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      c8df8ce3
    • V
      net: stmmac: Correct duplicate if/then/else case found by cppcheck · 43d24e48
      由 Vince Bridgers 提交于 
      Cppcheck found a duplicate if/then/else case where a receive descriptor
was being processed. This patch corrects that issue.

cppcheck --force --enable=all --inline-suppr .
...
Checking enh_desc.c...
[enh_desc.c:148] -> [enh_desc.c:144]: (style) Found duplicate if expressions.
...
Signed-off-by: NVince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      43d24e48
    • V
      net: stmmac: add platform init/exit for Altera's ARM socfpga · 0acf1676
      由 Vince Bridgers 提交于 
      This patch adds platform init/exit functions and modifications to support
suspend/resume for the Altera Cyclone 5 SOC Ethernet controller. The platform
exit function puts the controller into reset using the socfpga reset
controller driver. The platform init function sets up the Synopsys mac by
first making sure the Ethernet controller is held in reset, programming the
phy mode through external support logic, then deasserts reset through
the socfpga reset manager driver.
Signed-off-by: NVince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      0acf1676
    • A
      net/mlx4_en: IRQ affinity hint is not cleared on port down · bb273617
      由 Amir Vadai 提交于 
      Need to remove affinity hint at mlx4_en_deactivate_cq() and not at
mlx4_en_destroy_cq() - since affinity_mask might be free'd while still
being used by procfs.
Signed-off-by: NAmir Vadai <amirv@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      bb273617
    • A
      net/mlx4_en: Don't use irq_affinity_notifier to track changes in IRQ affinity map · 35f6f453
      由 Amir Vadai 提交于 
      IRQ affinity notifier can only have a single notifier - cpu_rmap
notifier. Can't use it to track changes in IRQ affinity map.
Detect IRQ affinity changes by comparing CPU to current IRQ affinity map
during NAPI poll thread.

CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ben Hutchings <ben@decadent.org.uk>
Fixes: 2eacc23c ("net/mlx4_core: Enforce irq affinity changes immediatly")
Signed-off-by: NAmir Vadai <amirv@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      35f6f453
    • M
      defxx: Fix !DYNAMIC_BUFFERS compilation warnings · 1b037474
      由 Maciej W. Rozycki 提交于 
      This fixes compilation warnings:

drivers/net/fddi/defxx.c:294: warning: 'dfx_rcv_flush' declared inline after being called
drivers/net/fddi/defxx.c:294: warning: previous declaration of 'dfx_rcv_flush' was here
drivers/net/fddi/defxx.c:2854: warning: 'my_skb_align' defined but not used

triggered when the driver is built with DYNAMIC_BUFFERS undefined.  Code
tested to work just fine with these changes and a few DEFPA and DEFTA
boards.
Signed-off-by: NMaciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1b037474
    • M
      defxx: Remove an incorrectly inverted preprocessor conditional · f46d53d0
      由 Maciej W. Rozycki 提交于 
      The RX handler of the driver has two paths switched between, depending on
the size of the frame received, as determined by SKBUFF_RX_COPYBREAK.

When a small frame is received, a new skb allocated has data space large
enough to hold the incoming frame only, and data is copied there from the
original skb whose buffer is returned to the DMA RX ring; in that case
`rx_in_place' is 0.  When a large frame is received, a new skb allocated
has data space large enough to hold the largest frame possible, including
the overhead for alignment, the receive status and padding, over 4.5kiB
overall, and its buffer is placed on the DMA RX ring while the original
buffer is passed up to the network stack avoiding the need to copy data;
in that case `rx_in_place' is 1.

However the latter scenario is only possible when dynamic buffers are
used, as determined by DYNAMIC_BUFFERS, because otherwise the buffers used
for the DMA RX ring are fixed at the time the interface is brought up.

That leads to an observation that the preprocessor conditional around the
`rx_in_place' check is inverted, the check only really matters when
dynamic buffers are in use.  It has gone unnoticed for many years since
support for using dynamic buffers on the DMA RX ring was introduced in
2.1.40 -- because the only problem that results is in the case where
`rx_in_place' is 1 frame data received is unnecessarily copied to the
newly-allocated buffer, before the buffer placed on the the DMA receive RX
and its contents ignored.  Therefore the only symptom is some performance
loss.

Rather than flipping the condition though I decided to discard the
conditional altogether -- in the case of static buffers `rx_in_place' is
always 0 so GCC will optimise the C conditional away instead.

Tested on a few DEFPA and DEFTA boards successfully using both small and
large frames, both with DYNAMIC_BUFFERS defined and with the macro
undefined.
Signed-off-by: NMaciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      f46d53d0
  9. 02 7月, 2014 8 次提交
  11. 27 6月, 2014 1 次提交
  13. 26 6月, 2014 7 次提交
  15. 25 6月, 2014 2 次提交