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  1. Dec 03, 2009
  2. Nov 19, 2009
  3. Oct 13, 2009
  4. Oct 11, 2009
  5. Sep 01, 2009
  6. Jul 08, 2009
  7. Jul 05, 2009
  8. Jun 13, 2009
  9. May 29, 2009
  10. Feb 26, 2009
  11. Feb 01, 2009
  12. Jan 11, 2009
  13. Nov 21, 2008
  14. Nov 03, 2008
  15. Oct 27, 2008
  16. May 22, 2008
  17. Apr 29, 2008
  18. Dec 14, 2007
    • Al Viro's avatar
      hamachi endianness fixes · 8e985918
      Al Viro authored
      
      badly broken on big-endian
      
      * passing little-endian to pci_unmap_single() et.al.
      * cpu_to_le32() before passing value to writel()
      * worse, cpu_to_le64() and shifting/masking result before the same
      * 			hmp->tx_ring[i].status_n_length = cpu_to_le32(
      				DescEndRing |
      				(hmp->tx_ring[i].status_n_length & 0x0000FFFF));
        is obviously bogus on big-endian.  Not hard to untangle, fortunately...
      * poisoning addresses in rx_ring is better done after we'd done
      pci_unmap_single() on them, not before that.  [this one affects little-endian
      as well, obviously, provided that pci_unmap_single() is not a no-op on target
      in question]
      
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
      8e985918
  19. Oct 10, 2007
  20. Jul 10, 2007
  21. Apr 25, 2007
  22. Oct 05, 2006
    • David Howells's avatar
      IRQ: Maintain regs pointer globally rather than passing to IRQ handlers · 7d12e780
      David Howells authored
      
      Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
      of passing regs around manually through all ~1800 interrupt handlers in the
      Linux kernel.
      
      The regs pointer is used in few places, but it potentially costs both stack
      space and code to pass it around.  On the FRV arch, removing the regs parameter
      from all the genirq function results in a 20% speed up of the IRQ exit path
      (ie: from leaving timer_interrupt() to leaving do_IRQ()).
      
      Where appropriate, an arch may override the generic storage facility and do
      something different with the variable.  On FRV, for instance, the address is
      maintained in GR28 at all times inside the kernel as part of general exception
      handling.
      
      Having looked over the code, it appears that the parameter may be handed down
      through up to twenty or so layers of functions.  Consider a USB character
      device attached to a USB hub, attached to a USB controller that posts its
      interrupts through a cascaded auxiliary interrupt controller.  A character
      device driver may want to pass regs to the sysrq handler through the input
      layer which adds another few layers of parameter passing.
      
      I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
      main part of the code on FRV and i386, though I can't test most of the drivers.
      I've also done partial conversion for powerpc and MIPS - these at least compile
      with minimal configurations.
      
      This will affect all archs.  Mostly the changes should be relatively easy.
      Take do_IRQ(), store the regs pointer at the beginning, saving the old one:
      
      	struct pt_regs *old_regs = set_irq_regs(regs);
      
      And put the old one back at the end:
      
      	set_irq_regs(old_regs);
      
      Don't pass regs through to generic_handle_irq() or __do_IRQ().
      
      In timer_interrupt(), this sort of change will be necessary:
      
      	-	update_process_times(user_mode(regs));
      	-	profile_tick(CPU_PROFILING, regs);
      	+	update_process_times(user_mode(get_irq_regs()));
      	+	profile_tick(CPU_PROFILING);
      
      I'd like to move update_process_times()'s use of get_irq_regs() into itself,
      except that i386, alone of the archs, uses something other than user_mode().
      
      Some notes on the interrupt handling in the drivers:
      
       (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
           the input_dev struct.
      
       (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
           something different depending on whether it's been supplied with a regs
           pointer or not.
      
       (*) Various IRQ handler function pointers have been moved to type
           irq_handler_t.
      
      Signed-Off-By: default avatarDavid Howells <dhowells@redhat.com>
      (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
      7d12e780
  23. Sep 22, 2006
  24. Sep 13, 2006
  25. Sep 12, 2006
    • Andy Gospodarek's avatar
      [PATCH] Remove more unnecessary driver printk's · d5b20697
      Andy Gospodarek authored
      
      As I promised last week, here is the first pass at removing all
      unnecessary printk's that exist in network device drivers currently in
      promiscuous mode.  The duplicate messages are not needed so they have
      been removed.  Some of these drivers are quite old and might not need an
      update, but I did them all anyway.
      
      I am currently auditing the remaining conditional printk's and will send
      out a patch for those soon.
      
      Signed-off-by: default avatarAndy Gospodarek <andy@greyhouse.net>
      Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
      d5b20697
  26. Jul 05, 2006
    • Jeff Garzik's avatar
      [netdrvr] Use dev_printk() when ethernet interface isn't available · 2e8a538d
      Jeff Garzik authored
      
      For messages prior to register_netdev(), prefer dev_printk() because
      that prints out both our driver name and our [PCI | whatever] bus id.
      
      Updates: 8139{cp,too}, b44, bnx2, cassini, {eepro,epic}100, fealnx,
      	 hamachi, ne2k-pci, ns83820, pci-skeleton, r8169.
      
      Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
      2e8a538d
    • Jeff Garzik's avatar
      [netdrvr] Remove Linux-specific changelogs from several Becker template drivers · 03a8c661
      Jeff Garzik authored
      
      When in-kernel net drivers branched from Donald Becker's vanilla driver
      set, in the days before BitKeeper and git, a driver changelog was
      maintained in the driver source code.  These days, the kernel's
      changelog is far superior and much more accurate, so the in-driver
      changelogs are removed.
      
      Another relic of the Becker/kernel split was version numbering, using
      "foo-LKx.y.z" notation, resulting in weird version numbers like
      "1.17b-LK1.1.9".  These drivers are for older hardware, and see few
      changes these days, so the version numbers were all bumped to something
      more simple.
      
      Finally, in xircom_tulip_cb specifically, an additional cleanup removes
      the always-enabled CARDBUS cpp macro.
      
      Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
      03a8c661
  27. Jul 02, 2006
  28. Mar 03, 2006
  29. Sep 07, 2005
  30. Jun 28, 2005
    • David S. Miller's avatar
      [NET]: Remove gratuitous use of skb->tail in network drivers. · 689be439
      David S. Miller authored
      
      Many drivers use skb->tail unnecessarily.
      
      In these situations, the code roughly looks like:
      
      	dev = dev_alloc_skb(...);
      
      	[optional] skb_reserve(skb, ...);
      
      	... skb->tail ...
      
      But even if the skb_reserve() happens, skb->data equals
      skb->tail.  So it doesn't make any sense to use anything
      other than skb->data in these cases.
      
      Another case was the s2io.c driver directly mucking with
      the skb->data and skb->tail pointers.  It really just wanted
      to do an skb_reserve(), so that's what the code was changed
      to do instead.
      
      Another reason I'm making this change as it allows some SKB
      cleanups I have planned simpler to merge.  In those cleanups,
      skb->head, skb->tail, and skb->end pointers are removed, and
      replaced with skb->head_room and skb->tail_room integers.
      
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      Acked-by: default avatarJeff Garzik <jgarzik@pobox.com>
      689be439
  31. Apr 16, 2005
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
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