kernel-small_fixes.patch

   1 --- linux-2.6.33/scripts/mod/modpost.c~ 2010-02-24 19:52:17.000000000 +0100
   2 +++ linux-2.6.33/scripts/mod/modpost.c  2010-03-07 14:26:47.242168558 +0100
   3 @@ -15,7 +15,8 @@
   4  #include <stdio.h>
   5  #include <ctype.h>
   6  #include "modpost.h"
   7 -#include "../../include/generated/autoconf.h"
   8 +// PLD architectures don't use CONFIG_SYMBOL_PREFIX
   9 +//#include "../../include/generated/autoconf.h"
  10  #include "../../include/linux/license.h"
  11
  12  /* Some toolchains use a `_' prefix for all user symbols. */
  13
  14 From: Stephen Hemminger <shemminger@vyatta.com>
  15
  16 Some BIOS's don't setup power management correctly (what else is
  17 new) and don't allow use of PCI Express power control. Add a special
  18 exception module parameter to allow working around this issue.
  19 Based on slightly different patch by Knut Petersen.
  20
  21 Reported-by: Arkadiusz Miskiewicz <arekm@maven.pl>
  22 Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
  23 ---
  24 Patch against -net (ie. 3.3.0)
  25
  26 --- a/drivers/net/ethernet/marvell/sky2.c       2012-01-10 10:56:56.855156017 -0800
  27 +++ b/drivers/net/ethernet/marvell/sky2.c       2012-03-21 08:25:52.400929532 -0700
  28 @@ -95,6 +95,10 @@ static int disable_msi = 0;
  29  module_param(disable_msi, int, 0);
  30  MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
  31
  32 +static int legacy_pme = 0;
  33 +module_param(legacy_pme, int, 0);
  34 +MODULE_PARM_DESC(legacy_pme, "Legacy power management");
  35 +
  36  static DEFINE_PCI_DEVICE_TABLE(sky2_id_table) = {
  37         { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) }, /* SK-9Sxx */
  38         { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */
  39 @@ -867,6 +871,13 @@ static void sky2_wol_init(struct sky2_po
  40         /* Disable PiG firmware */
  41         sky2_write16(hw, B0_CTST, Y2_HW_WOL_OFF);
  42
  43 +       /* Needed by some broken BIOSes, use PCI rather than PCI-e for WOL */
  44 +       if (legacy_pme) {
  45 +               u32 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
  46 +               reg1 |= PCI_Y2_PME_LEGACY;
  47 +               sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
  48 +       }
  49 +
  50         /* block receiver */
  51         sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
  52         sky2_read32(hw, B0_CTST);
  53
  54
  55 The RCU problem is likely to be a separate issue.  It might even be a
  56 result of the use-after-free problem with the elevator.
  57
  58 At any rate, it's clear that the crash in the refcounting log you
  59 posted occurred because scsi_setup_blk_pc_cmnd() called
  60 scsi_prep_state_check(), which tried to dereference the NULL pointer.
  61
  62 Would you like to try this patch to see if it fixes the problem?  As I
  63 said before, I'm not certain it's the best thing to do, but it worked
  64 on my system.
  65
  66 Alan Stern
  67
  68
  69 Index: usb-3.0/drivers/scsi/scsi_lib.c
  70 ===================================================================
  71 --- usb-3.0.orig/drivers/scsi/scsi_lib.c
  72 +++ usb-3.0/drivers/scsi/scsi_lib.c
  73 @@ -1247,6 +1247,8 @@ int scsi_prep_fn(struct request_queue *q
  74         struct scsi_device *sdev = q->queuedata;
  75         int ret = BLKPREP_KILL;
  76
  77 +       if (!sdev)
  78 +               return ret;
  79         if (req->cmd_type == REQ_TYPE_BLOCK_PC)
  80                 ret = scsi_setup_blk_pc_cmnd(sdev, req);
  81         return scsi_prep_return(q, req, ret);
  82 Index: usb-3.0/drivers/scsi/scsi_sysfs.c
  83 ===================================================================
  84 --- usb-3.0.orig/drivers/scsi/scsi_sysfs.c
  85 +++ usb-3.0/drivers/scsi/scsi_sysfs.c
  86 @@ -322,6 +322,8 @@ static void scsi_device_dev_release_user
  87                 kfree(evt);
  88         }
  89
  90 +       /* Freeing the queue signals to block that we're done */
  91 +       scsi_free_queue(sdev->request_queue);
  92         blk_put_queue(sdev->request_queue);
  93         /* NULL queue means the device can't be used */
  94         sdev->request_queue = NULL;
  95 @@ -936,8 +938,6 @@ void __scsi_remove_device(struct scsi_de
  96         /* cause the request function to reject all I/O requests */
  97         sdev->request_queue->queuedata = NULL;
  98
  99 -       /* Freeing the queue signals to block that we're done */
 100 -       scsi_free_queue(sdev->request_queue);
 101         put_device(dev);
 102  }
 103
 104
 105
 106 --
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 111 --- linux-3.0/scripts/kconfig/lxdialog/check-lxdialog.sh~       2011-07-22 04:17:23.000000000 +0200
 112 +++ linux-3.0/scripts/kconfig/lxdialog/check-lxdialog.sh        2011-08-25 21:26:04.799150642 +0200
 113 @@ -9,6 +9,12 @@
 114                         $cc -print-file-name=lib${lib}.${ext} | grep -q /
 115                         if [ $? -eq 0 ]; then
 116                                 echo "-l${lib}"
 117 +                               for libt in tinfow tinfo ; do
 118 +                                       $cc -print-file-name=lib${libt}.${ext} | grep -q /
 119 +                                       if [ $? -eq 0 ]; then
 120 +                                               echo "-l${libt}"
 121 +                                       fi
 122 +                               done
 123                                 exit
 124                         fi
 125                 done
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