Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] SB1: Check for -mno-sched-prolog if building corelis debug kernel.
  [MIPS] Sibyte: Fix race in sb1250_gettimeoffset().
  [MIPS] Sibyte: Fix interrupt timer off by one bug.
  [MIPS] Sibyte: Fix M_SCD_TIMER_INIT and M_SCD_TIMER_CNT wrong field width.
  [MIPS] Protect more of timer_interrupt() by xtime_lock.
  [MIPS] Work around bad code generation for <asm/io.h>.
  [MIPS] Simple patch to power off DBAU1200
  [MIPS] Fix DBAu1550 software power off.
  [MIPS] local_r4k_flush_cache_page fix
  [MIPS] SB1: Fix interrupt disable hazard.
  [MIPS] Get rid of the IP22-specific code in arclib.
  Update MAINTAINERS entry for MIPS.

diff --git a/drivers/media/video/cx88/Kconfig b/drivers/media/video/cx88/Kconfig
index e99dfbbf3e95b8b46f62c260a63f9fd8b57a9b22..87d79df053363a9c816e38125cac3f88dcf2426e 100644 (file)
--- a/drivers/media/video/cx88/Kconfig
+++ b/drivers/media/video/cx88/Kconfig
@@ -15,20 +15,6 @@ config VIDEO_CX88
          To compile this driver as a module, choose M here: the
          module will be called cx8800
 
-config VIDEO_CX88_DVB
-       tristate "DVB/ATSC Support for cx2388x based TV cards"
-       depends on VIDEO_CX88 && DVB_CORE
-       select VIDEO_BUF_DVB
-       ---help---
-         This adds support for DVB/ATSC cards based on the
-         Connexant 2388x chip.
-
-         To compile this driver as a module, choose M here: the
-         module will be called cx88-dvb.
-
-         You must also select one or more DVB/ATSC demodulators.
-         If you are unsure which you need, choose all of them.
-
 config VIDEO_CX88_ALSA
        tristate "ALSA DMA audio support"
        depends on VIDEO_CX88 && SND && EXPERIMENTAL
@@ -44,6 +30,20 @@ config VIDEO_CX88_ALSA
          To compile this driver as a module, choose M here: the
          module will be called cx88-alsa.
 
+config VIDEO_CX88_DVB
+       tristate "DVB/ATSC Support for cx2388x based TV cards"
+       depends on VIDEO_CX88 && DVB_CORE
+       select VIDEO_BUF_DVB
+       ---help---
+         This adds support for DVB/ATSC cards based on the
+         Connexant 2388x chip.
+
+         To compile this driver as a module, choose M here: the
+         module will be called cx88-dvb.
+
+         You must also select one or more DVB/ATSC demodulators.
+         If you are unsure which you need, choose all of them.
+
 config VIDEO_CX88_DVB_ALL_FRONTENDS
        bool "Build all supported frontends for cx2388x based TV cards"
        default y

diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index 94a14a2bb6d6cee222172f6cabddbf406d53dc21..5b267808a9d4a3d169e7847601bc3d5b9425e65a 100644 (file)
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -367,6 +367,9 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
        em28xx_capture_start(dev, 1);
        em28xx_resolution_set(dev);
 
+       /* device needs to be initialized before isoc transfer */
+       video_mux(dev, 0);
+
        /* start the transfer */
        errCode = em28xx_init_isoc(dev);
        if (errCode)

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index b8f1524da5578b7d4b34f53713d370fae3e361da..caf4102b54ce6ed5afce495f503bf5e3ae2df963 100644 (file)
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -9552,12 +9552,36 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
                }
        }
 
-       /* Find msi capability. */
+       /* The EPB bridge inside 5714, 5715, and 5780 cannot support
+        * DMA addresses > 40-bit. This bridge may have other additional
+        * 57xx devices behind it in some 4-port NIC designs for example.
+        * Any tg3 device found behind the bridge will also need the 40-bit
+        * DMA workaround.
+        */
        if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 ||
            GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
                tp->tg3_flags2 |= TG3_FLG2_5780_CLASS;
+               tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
                tp->msi_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_MSI);
        }
+       else {
+               struct pci_dev *bridge = NULL;
+
+               do {
+                       bridge = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
+                                               PCI_DEVICE_ID_SERVERWORKS_EPB,
+                                               bridge);
+                       if (bridge && bridge->subordinate &&
+                           (bridge->subordinate->number <=
+                            tp->pdev->bus->number) &&
+                           (bridge->subordinate->subordinate >=
+                            tp->pdev->bus->number)) {
+                               tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
+                               pci_dev_put(bridge);
+                               break;
+                       }
+               } while (bridge);
+       }
 
        /* Initialize misc host control in PCI block. */
        tp->misc_host_ctrl |= (misc_ctrl_reg &
@@ -10303,7 +10327,14 @@ static int __devinit tg3_test_dma(struct tg3 *tp)
                    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
                        u32 ccval = (tr32(TG3PCI_CLOCK_CTRL) & 0x1f);
 
-                       if (ccval == 0x6 || ccval == 0x7)
+                       /* If the 5704 is behind the EPB bridge, we can
+                        * do the less restrictive ONE_DMA workaround for
+                        * better performance.
+                        */
+                       if ((tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) &&
+                           GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
+                               tp->dma_rwctrl |= 0x8000;
+                       else if (ccval == 0x6 || ccval == 0x7)
                                tp->dma_rwctrl |= DMA_RWCTRL_ONE_DMA;
 
                        /* Set bit 23 to enable PCIX hw bug fix */
@@ -10759,19 +10790,20 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
                goto err_out_iounmap;
        }
 
-       /* 5714, 5715 and 5780 cannot support DMA addresses > 40-bit.
+       /* The EPB bridge inside 5714, 5715, and 5780 and any
+        * device behind the EPB cannot support DMA addresses > 40-bit.
         * On 64-bit systems with IOMMU, use 40-bit dma_mask.
         * On 64-bit systems without IOMMU, use 64-bit dma_mask and
         * do DMA address check in tg3_start_xmit().
         */
-       if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
+       if (tp->tg3_flags2 & TG3_FLG2_IS_5788)
+               persist_dma_mask = dma_mask = DMA_32BIT_MASK;
+       else if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) {
                persist_dma_mask = dma_mask = DMA_40BIT_MASK;
 #ifdef CONFIG_HIGHMEM
                dma_mask = DMA_64BIT_MASK;
 #endif
-       } else if (tp->tg3_flags2 & TG3_FLG2_IS_5788)
-               persist_dma_mask = dma_mask = DMA_32BIT_MASK;
-       else
+       } else
                persist_dma_mask = dma_mask = DMA_64BIT_MASK;
 
        /* Configure DMA attributes. */
@@ -10908,8 +10940,10 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
               (tp->tg3_flags & TG3_FLAG_SPLIT_MODE) != 0,
               (tp->tg3_flags2 & TG3_FLG2_NO_ETH_WIRE_SPEED) == 0,
               (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) != 0);
-       printk(KERN_INFO "%s: dma_rwctrl[%08x]\n",
-              dev->name, tp->dma_rwctrl);
+       printk(KERN_INFO "%s: dma_rwctrl[%08x] dma_mask[%d-bit]\n",
+              dev->name, tp->dma_rwctrl,
+              (pdev->dma_mask == DMA_32BIT_MASK) ? 32 :
+               (((u64) pdev->dma_mask == DMA_40BIT_MASK) ? 40 : 64));
 
        return 0;
 

diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 7f4b7f6ac40dec8085ac567457ce50ddb83038d3..7e3b613afb293f7c036b63b5ac1e174c24ca7a61 100644 (file)
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2163,6 +2163,7 @@ struct tg3 {
 #define TG3_FLAG_10_100_ONLY           0x01000000
 #define TG3_FLAG_PAUSE_AUTONEG         0x02000000
 #define TG3_FLAG_IN_RESET_TASK         0x04000000
+#define TG3_FLAG_40BIT_DMA_BUG         0x08000000
 #define TG3_FLAG_BROKEN_CHECKSUMS      0x10000000
 #define TG3_FLAG_GOT_SERDES_FLOWCTL    0x20000000
 #define TG3_FLAG_SPLIT_MODE            0x40000000

diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 1709b5009d2e2c1ae2425faf74c3224f7fd0889f..751eea58bde8266d3a0369b981c8ba2c98974e0d 100644 (file)
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1365,6 +1365,7 @@
 #define PCI_DEVICE_ID_SERVERWORKS_HE     0x0008
 #define PCI_DEVICE_ID_SERVERWORKS_LE     0x0009
 #define PCI_DEVICE_ID_SERVERWORKS_GCNB_LE 0x0017
+#define PCI_DEVICE_ID_SERVERWORKS_EPB    0x0103
 #define PCI_DEVICE_ID_SERVERWORKS_OSB4   0x0200
 #define PCI_DEVICE_ID_SERVERWORKS_CSB5   0x0201
 #define PCI_DEVICE_ID_SERVERWORKS_CSB6    0x0203

diff --git a/include/net/ax25.h b/include/net/ax25.h
index 2250a18b0cbb5fe2cb88a51dd5c2f0ca3af70cd2..d052b221dbcd4b5ce124e9ee3a0c64358a2dbf1d 100644 (file)
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -110,8 +110,15 @@ enum {
 enum {
        AX25_PROTO_STD_SIMPLEX,
        AX25_PROTO_STD_DUPLEX,
+#ifdef CONFIG_AX25_DAMA_SLAVE
        AX25_PROTO_DAMA_SLAVE,
-       AX25_PROTO_DAMA_MASTER
+#ifdef CONFIG_AX25_DAMA_MASTER
+       AX25_PROTO_DAMA_MASTER,
+#define AX25_PROTO_MAX AX25_PROTO_DAMA_MASTER
+#endif
+#endif
+       __AX25_PROTO_MAX,
+       AX25_PROTO_MAX = __AX25_PROTO_MAX -1
 };
 
 enum {

diff --git a/kernel/fork.c b/kernel/fork.c
index 46060cb24af0e06a7c21fdb67978f33644abbc3d..b373322ca4977a632bed40a38de125e9db482228 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1478,9 +1478,7 @@ static int unshare_vm(unsigned long unshare_flags, struct mm_struct **new_mmp)
 
        if ((unshare_flags & CLONE_VM) &&
            (mm && atomic_read(&mm->mm_users) > 1)) {
-               *new_mmp = dup_mm(current);
-               if (!*new_mmp)
-                       return -ENOMEM;
+               return -EINVAL;
        }
 
        return 0;

diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c
index f67711f2ee96c51dee92fda1779cc039dd987bc4..894a22558d9dc7fb2604c0d84c64cf62873e4803 100644 (file)
--- a/net/ax25/sysctl_net_ax25.c
+++ b/net/ax25/sysctl_net_ax25.c
@@ -24,7 +24,7 @@ static int min_t3[1],                 max_t3[] = {3600 * HZ};
 static int min_idle[1],                max_idle[] = {65535 * HZ};
 static int min_n2[] = {1},             max_n2[] = {31};
 static int min_paclen[] = {1},         max_paclen[] = {512};
-static int min_proto[1],               max_proto[] = {3};
+static int min_proto[1],               max_proto[] = { AX25_PROTO_MAX };
 static int min_ds_timeout[1],          max_ds_timeout[] = {65535 * HZ};
 
 static struct ctl_table_header *ax25_table_header;