16 files changed, 107 insertions, 56 deletions

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 6d7401772a8f..e6857e01d1ba 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -669,10 +669,12 @@ config BLK_DEV_CELLEB
 
 endif
 
+# TODO: BLK_DEV_IDEDMA_PCI -> BLK_DEV_IDEDMA_SFF
 config BLK_DEV_IDE_PMAC
         tristate "PowerMac on-board IDE support"
         depends on PPC_PMAC && IDE=y
         select IDE_TIMINGS
+        select BLK_DEV_IDEDMA_PCI
         help
           This driver provides support for the on-board IDE controller on
           most of the recent Apple Power Macintoshes and PowerBooks.
@@ -689,16 +691,6 @@ config BLK_DEV_IDE_PMAC_ATA100FIRST
           CD-ROM on hda. This option changes this to more natural hda for
           hard disk and hdc for CD-ROM.
 
-config BLK_DEV_IDEDMA_PMAC
-        bool "PowerMac IDE DMA support"
-        depends on BLK_DEV_IDE_PMAC
-        select BLK_DEV_IDEDMA_PCI
-        help
-          This option allows the driver for the on-board IDE controller on
-          Power Macintoshes and PowerBooks to use DMA (direct memory access)
-          to transfer data to and from memory.  Saying Y is safe and improves
-          performance.
-
 config BLK_DEV_IDE_AU1XXX
        bool "IDE for AMD Alchemy Au1200"
        depends on SOC_AU1200
@@ -912,7 +904,7 @@ config BLK_DEV_UMC8672
 endif
 
 config BLK_DEV_IDEDMA
-        def_bool BLK_DEV_IDEDMA_SFF || BLK_DEV_IDEDMA_PMAC || \
+        def_bool BLK_DEV_IDEDMA_SFF || \
                  BLK_DEV_IDEDMA_ICS || BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
 
 endif # IDE
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 7d275b2af3eb..cc35d6dbd410 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -208,8 +208,10 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
                  */
                 if (drive->hwif->dma_ops == NULL)
                         break;
-                if (drive->dev_flags & IDE_DFLAG_USING_DMA)
-                        ide_set_dma(drive);
+                /*
+                 * TODO: respect IDE_DFLAG_USING_DMA
+                 */
+                ide_set_dma(drive);
                 break;
         }
 
diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c
index 2e19d6298536..7c481bb56fab 100644
--- a/drivers/ide/pmac.c
+++ b/drivers/ide/pmac.c
@@ -66,7 +66,6 @@ typedef struct pmac_ide_hwif {
         struct macio_dev                *mdev;
         u32                             timings[4];
         volatile u32 __iomem *          *kauai_fcr;
-#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
         /* Those fields are duplicating what is in hwif. We currently
          * can't use the hwif ones because of some assumptions that are
          * beeing done by the generic code about the kind of dma controller
@@ -74,8 +73,6 @@ typedef struct pmac_ide_hwif {
          */
         volatile struct dbdma_regs __iomem *    dma_regs;
         struct dbdma_cmd*               dma_table_cpu;
-#endif
-        
 } pmac_ide_hwif_t;
 
 enum {
@@ -222,8 +219,6 @@ static const char* model_name[] = {
 #define KAUAI_FCR_UATA_RESET_N          0x00000002
 #define KAUAI_FCR_UATA_ENABLE           0x00000001
 
-#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
-
 /* Rounded Multiword DMA timings
  * 
  * I gave up finding a generic formula for all controller
@@ -413,8 +408,6 @@ static int pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq);
 static void pmac_ide_selectproc(ide_drive_t *drive);
 static void pmac_ide_kauai_selectproc(ide_drive_t *drive);
 
-#endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
-
 #define PMAC_IDE_REG(x) \
         ((void __iomem *)((drive)->hwif->io_ports.data_addr + (x)))
 
@@ -584,8 +577,6 @@ pmac_ide_set_pio_mode(ide_drive_t *drive, const u8 pio)
         pmac_ide_do_update_timings(drive);
 }
 
-#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
-
 /*
  * Calculate KeyLargo ATA/66 UDMA timings
  */
@@ -786,7 +777,6 @@ set_timings_mdma(ide_drive_t *drive, int intf_type, u32 *timings, u32 *timings2,
                 drive->name, speed & 0xf,  *timings);
 #endif  
 }
-#endif /* #ifdef CONFIG_BLK_DEV_IDEDMA_PMAC */
 
 static void pmac_ide_set_dma_mode(ide_drive_t *drive, const u8 speed)
 {
@@ -804,7 +794,6 @@ static void pmac_ide_set_dma_mode(ide_drive_t *drive, const u8 speed)
         tl[0] = *timings;
         tl[1] = *timings2;
 
-#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
         if (speed >= XFER_UDMA_0) {
                 if (pmif->kind == controller_kl_ata4)
                         ret = set_timings_udma_ata4(&tl[0], speed);
@@ -817,7 +806,7 @@ static void pmac_ide_set_dma_mode(ide_drive_t *drive, const u8 speed)
                         ret = -1;
         } else
                 set_timings_mdma(drive, pmif->kind, &tl[0], &tl[1], speed);
-#endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
+
         if (ret)
                 return;
 
@@ -1008,9 +997,7 @@ static const struct ide_port_info pmac_port_info = {
         .chipset                = ide_pmac,
         .tp_ops                 = &pmac_tp_ops,
         .port_ops               = &pmac_ide_port_ops,
-#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
         .dma_ops                = &pmac_dma_ops,
-#endif
         .host_flags             = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA |
                                   IDE_HFLAG_POST_SET_MODE |
                                   IDE_HFLAG_MMIO |
@@ -1182,7 +1169,7 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match)
         pmif->regbase = regbase;
         pmif->irq = irq;
         pmif->kauai_fcr = NULL;
-#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
+
         if (macio_resource_count(mdev) >= 2) {
                 if (macio_request_resource(mdev, 1, "ide-pmac (dma)"))
                         printk(KERN_WARNING "ide-pmac: can't request DMA "
@@ -1192,7 +1179,7 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match)
                         pmif->dma_regs = ioremap(macio_resource_start(mdev, 1), 0x1000);
         } else
                 pmif->dma_regs = NULL;
-#endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
+
         dev_set_drvdata(&mdev->ofdev.dev, pmif);
 
         memset(&hw, 0, sizeof(hw));
@@ -1300,9 +1287,7 @@ pmac_ide_pci_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 
         base = ioremap(rbase, rlen);
         pmif->regbase = (unsigned long) base + 0x2000;
-#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
         pmif->dma_regs = base + 0x1000;
-#endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
         pmif->kauai_fcr = base;
         pmif->irq = pdev->irq;
 
@@ -1434,8 +1419,6 @@ out:
         return error;
 }
 
-#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
-
 /*
  * pmac_ide_build_dmatable builds the DBDMA command list
  * for a transfer and sets the DBDMA channel to point to it.
@@ -1723,13 +1706,6 @@ static int __devinit pmac_ide_init_dma(ide_hwif_t *hwif,
 
         return 0;
 }
-#else
-static int __devinit pmac_ide_init_dma(ide_hwif_t *hwif,
-                                       const struct ide_port_info *d)
-{
-        return -EOPNOTSUPP;
-}
-#endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
 
 module_init(pmac_ide_probe);
 
diff --git a/drivers/isdn/hardware/avm/b1isa.c b/drivers/isdn/hardware/avm/b1isa.c
index 1e288eeb5e2a..6461a32bc838 100644
--- a/drivers/isdn/hardware/avm/b1isa.c
+++ b/drivers/isdn/hardware/avm/b1isa.c
@@ -233,10 +233,8 @@ static void __exit b1isa_exit(void)
         int i;
 
         for (i = 0; i < MAX_CARDS; i++) {
-                if (!io[i])
-                        break;
-
-                b1isa_remove(&isa_dev[i]);
+                if (isa_dev[i].resource[0].start)
+                        b1isa_remove(&isa_dev[i]);
         }
         unregister_capi_driver(&capi_driver_b1isa);
 }
diff --git a/drivers/isdn/hysdn/hysdn_net.c b/drivers/isdn/hysdn/hysdn_net.c
index cfa8fa5e44ab..3f2a0a20c19b 100644
--- a/drivers/isdn/hysdn/hysdn_net.c
+++ b/drivers/isdn/hysdn/hysdn_net.c
@@ -83,12 +83,12 @@ net_open(struct net_device *dev)
 
         /* Fill in the MAC-level header (if not already set) */
         if (!card->mac_addr[0]) {
-                for (i = 0; i < ETH_ALEN - sizeof(unsigned long); i++)
+                for (i = 0; i < ETH_ALEN; i++)
                         dev->dev_addr[i] = 0xfc;
                 if ((in_dev = dev->ip_ptr) != NULL) {
                         struct in_ifaddr *ifa = in_dev->ifa_list;
                         if (ifa != NULL)
-                                memcpy(dev->dev_addr + (ETH_ALEN - sizeof(unsigned long)), &ifa->ifa_local, sizeof(unsigned long));
+                                memcpy(dev->dev_addr + (ETH_ALEN - sizeof(ifa->ifa_local)), &ifa->ifa_local, sizeof(ifa->ifa_local));
                 }
         } else
                 memcpy(dev->dev_addr, card->mac_addr, ETH_ALEN);
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index d07e3f148951..a1a3d0e5d2b4 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -3144,6 +3144,28 @@ bnx2_has_work(struct bnx2_napi *bnapi)
         return 0;
 }
 
+static void
+bnx2_chk_missed_msi(struct bnx2 *bp)
+{
+        struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
+        u32 msi_ctrl;
+
+        if (bnx2_has_work(bnapi)) {
+                msi_ctrl = REG_RD(bp, BNX2_PCICFG_MSI_CONTROL);
+                if (!(msi_ctrl & BNX2_PCICFG_MSI_CONTROL_ENABLE))
+                        return;
+
+                if (bnapi->last_status_idx == bp->idle_chk_status_idx) {
+                        REG_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl &
+                               ~BNX2_PCICFG_MSI_CONTROL_ENABLE);
+                        REG_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl);
+                        bnx2_msi(bp->irq_tbl[0].vector, bnapi);
+                }
+        }
+
+        bp->idle_chk_status_idx = bnapi->last_status_idx;
+}
+
 static void bnx2_poll_link(struct bnx2 *bp, struct bnx2_napi *bnapi)
 {
         struct status_block *sblk = bnapi->status_blk.msi;
@@ -3218,14 +3240,15 @@ static int bnx2_poll(struct napi_struct *napi, int budget)
 
                 work_done = bnx2_poll_work(bp, bnapi, work_done, budget);
 
-                if (unlikely(work_done >= budget))
-                        break;
-
                 /* bnapi->last_status_idx is used below to tell the hw how
                  * much work has been processed, so we must read it before
                  * checking for more work.
                  */
                 bnapi->last_status_idx = sblk->status_idx;
+
+                if (unlikely(work_done >= budget))
+                        break;
+
                 rmb();
                 if (likely(!bnx2_has_work(bnapi))) {
                         netif_rx_complete(bp->dev, napi);
@@ -4570,6 +4593,8 @@ bnx2_init_chip(struct bnx2 *bp)
         for (i = 0; i < BNX2_MAX_MSIX_VEC; i++)
                 bp->bnx2_napi[i].last_status_idx = 0;
 
+        bp->idle_chk_status_idx = 0xffff;
+
         bp->rx_mode = BNX2_EMAC_RX_MODE_SORT_MODE;
 
         /* Set up how to generate a link change interrupt. */
@@ -5718,6 +5743,10 @@ bnx2_timer(unsigned long data)
         if (atomic_read(&bp->intr_sem) != 0)
                 goto bnx2_restart_timer;
 
+        if ((bp->flags & (BNX2_FLAG_USING_MSI | BNX2_FLAG_ONE_SHOT_MSI)) ==
+             BNX2_FLAG_USING_MSI)
+                bnx2_chk_missed_msi(bp);
+
         bnx2_send_heart_beat(bp);
 
         bp->stats_blk->stat_FwRxDrop =
diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index 617d95340160..0b032c3c7b61 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -378,6 +378,9 @@ struct l2_fhdr {
  *  pci_config_l definition
  *  offset: 0000
  */
+#define BNX2_PCICFG_MSI_CONTROL                         0x00000058
+#define BNX2_PCICFG_MSI_CONTROL_ENABLE                   (1L<<16)
+
 #define BNX2_PCICFG_MISC_CONFIG                         0x00000068
 #define BNX2_PCICFG_MISC_CONFIG_TARGET_BYTE_SWAP         (1L<<2)
 #define BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP      (1L<<3)
@@ -6863,6 +6866,9 @@ struct bnx2 {
 
         u8                      num_tx_rings;
         u8                      num_rx_rings;
+
+        u32                     idle_chk_status_idx;
+
 };
 
 #define REG_RD(bp, offset)                                      \
diff --git a/drivers/net/enc28j60.c b/drivers/net/enc28j60.c
index e1b441effbbe..c414554ac321 100644
--- a/drivers/net/enc28j60.c
+++ b/drivers/net/enc28j60.c
@@ -568,6 +568,17 @@ static u16 erxrdpt_workaround(u16 next_packet_ptr, u16 start, u16 end)
         return erxrdpt;
 }
 
+/*
+ * Calculate wrap around when reading beyond the end of the RX buffer
+ */
+static u16 rx_packet_start(u16 ptr)
+{
+        if (ptr + RSV_SIZE > RXEND_INIT)
+                return (ptr + RSV_SIZE) - (RXEND_INIT - RXSTART_INIT + 1);
+        else
+                return ptr + RSV_SIZE;
+}
+
 static void nolock_rxfifo_init(struct enc28j60_net *priv, u16 start, u16 end)
 {
         u16 erxrdpt;
@@ -938,8 +949,9 @@ static void enc28j60_hw_rx(struct net_device *ndev)
                         skb->dev = ndev;
                         skb_reserve(skb, NET_IP_ALIGN);
                         /* copy the packet from the receive buffer */
-                        enc28j60_mem_read(priv, priv->next_pk_ptr + sizeof(rsv),
-                                        len, skb_put(skb, len));
+                        enc28j60_mem_read(priv,
+                                rx_packet_start(priv->next_pk_ptr),
+                                len, skb_put(skb, len));
                         if (netif_msg_pktdata(priv))
                                 dump_packet(__func__, skb->len, skb->data);
                         skb->protocol = eth_type_trans(skb, ndev);
diff --git a/drivers/net/netx-eth.c b/drivers/net/netx-eth.c
index b9bed82e1d21..b289a0a2b945 100644
--- a/drivers/net/netx-eth.c
+++ b/drivers/net/netx-eth.c
@@ -401,6 +401,8 @@ static int netx_eth_drv_probe(struct platform_device *pdev)
         priv->xmac_base = priv->xc->xmac_base;
         priv->sram_base = priv->xc->sram_base;
 
+        spin_lock_init(&priv->lock);
+
         ret = pfifo_request(PFIFO_MASK(priv->id));
         if (ret) {
                 printk("unable to request PFIFO\n");
diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c
index dcce3542d5a7..7a9f901d4ff6 100644
--- a/drivers/net/wireless/ipw2200.c
+++ b/drivers/net/wireless/ipw2200.c
@@ -3897,6 +3897,7 @@ static int ipw_disassociate(void *data)
         if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
                 return 0;
         ipw_send_disassociate(data, 0);
+        netif_carrier_off(priv->net_dev);
         return 1;
 }
 
@@ -10190,6 +10191,9 @@ static int ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb,
         u16 remaining_bytes;
         int fc;
 
+        if (!(priv->status & STATUS_ASSOCIATED))
+                goto drop;
+
         hdr_len = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
         switch (priv->ieee->iw_mode) {
         case IW_MODE_ADHOC:
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 4c312c55f90c..01a845851338 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -290,6 +290,9 @@ void iwl_clear_stations_table(struct iwl_priv *priv)
         priv->num_stations = 0;
         memset(priv->stations, 0, sizeof(priv->stations));
 
+        /* clean ucode key table bit map */
+        priv->ucode_key_table = 0;
+
         spin_unlock_irqrestore(&priv->sta_lock, flags);
 }
 EXPORT_SYMBOL(iwl_clear_stations_table);
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 61797f3f8d5c..26f7084d3011 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -475,7 +475,7 @@ static int iwl_get_free_ucode_key_index(struct iwl_priv *priv)
                 if (!test_and_set_bit(i, &priv->ucode_key_table))
                         return i;
 
-        return -1;
+        return WEP_INVALID_OFFSET;
 }
 
 int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty)
@@ -620,6 +620,9 @@ static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv,
         /* else, we are overriding an existing key => no need to allocated room
          * in uCode. */
 
+        WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
+                "no space for new kew");
+
         priv->stations[sta_id].sta.key.key_flags = key_flags;
         priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
         priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
@@ -637,6 +640,7 @@ static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
 {
         unsigned long flags;
         __le16 key_flags = 0;
+        int ret;
 
         key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
         key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
@@ -664,14 +668,18 @@ static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
         /* else, we are overriding an existing key => no need to allocated room
          * in uCode. */
 
+        WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
+                "no space for new kew");
+
         priv->stations[sta_id].sta.key.key_flags = key_flags;
         priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
         priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
 
+        ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+
         spin_unlock_irqrestore(&priv->sta_lock, flags);
 
-        IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
-        return iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+        return ret;
 }
 
 static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv,
@@ -696,6 +704,9 @@ static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv,
         /* else, we are overriding an existing key => no need to allocated room
          * in uCode. */
 
+        WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
+                "no space for new kew");
+
         /* This copy is acutally not needed: we get the key with each TX */
         memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16);
 
@@ -734,6 +745,13 @@ int iwl_remove_dynamic_key(struct iwl_priv *priv,
                 return 0;
         }
 
+        if (priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) {
+                IWL_WARNING("Removing wrong key %d 0x%x\n",
+                            keyconf->keyidx, key_flags);
+                spin_unlock_irqrestore(&priv->sta_lock, flags);
+                return 0;
+        }
+
         if (!test_and_clear_bit(priv->stations[sta_id].sta.key.key_offset,
                 &priv->ucode_key_table))
                 IWL_ERROR("index %d not used in uCode key table.\n",
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index fe1867b25ff7..cac732f4047f 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -615,7 +615,7 @@ static int filter_ack(struct ieee80211_hw *hw, struct ieee80211_hdr *rx_hdr,
                 struct ieee80211_hdr *tx_hdr;
 
                 tx_hdr = (struct ieee80211_hdr *)skb->data;
-                if (likely(!compare_ether_addr(tx_hdr->addr2, rx_hdr->addr1)))
+                if (likely(!memcmp(tx_hdr->addr2, rx_hdr->addr1, ETH_ALEN)))
                 {
                         __skb_unlink(skb, q);
                         tx_status(hw, skb, IEEE80211_TX_STAT_ACK, stats->signal, 1);
diff --git a/drivers/video/aty/radeon_accel.c b/drivers/video/aty/radeon_accel.c
index a547e5d4c8bf..8da5e5ab8547 100644
--- a/drivers/video/aty/radeon_accel.c
+++ b/drivers/video/aty/radeon_accel.c
@@ -256,7 +256,8 @@ void radeonfb_imageblit(struct fb_info *info, const struct fb_image *image)
                 return;
 
         /* We only do 1 bpp color expansion for now */
-        if (info->flags & FBINFO_HWACCEL_DISABLED || image->depth != 1)
+        if (!accel_cexp ||
+            (info->flags & FBINFO_HWACCEL_DISABLED) || image->depth != 1)
                 goto fallback;
 
         /* Fallback if running out of the screen. We may do clipping
diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c
index b3ffe8205d2b..d5b27f9d374d 100644
--- a/drivers/video/aty/radeon_base.c
+++ b/drivers/video/aty/radeon_base.c
@@ -282,6 +282,8 @@ static int backlight = 1;
 static int backlight = 0;
 #endif
 
+int accel_cexp = 0;
+
 /*
  * prototypes
  */
@@ -2520,6 +2522,8 @@ static int __init radeonfb_setup (char *options)
                 } else if (!strncmp(this_opt, "ignore_devlist", 14)) {
                         ignore_devlist = 1;
 #endif
+                } else if (!strncmp(this_opt, "accel_cexp", 12)) {
+                        accel_cexp = 1;
                 } else
                         mode_option = this_opt;
         }
@@ -2567,6 +2571,8 @@ module_param(monitor_layout, charp, 0);
 MODULE_PARM_DESC(monitor_layout, "Specify monitor mapping (like XFree86)");
 module_param(force_measure_pll, bool, 0);
 MODULE_PARM_DESC(force_measure_pll, "Force measurement of PLL (debug)");
+module_param(accel_cexp, bool, 0);
+MODULE_PARM_DESC(accel_cexp, "Use acceleration engine for color expansion");
 #ifdef CONFIG_MTRR
 module_param(nomtrr, bool, 0);
 MODULE_PARM_DESC(nomtrr, "bool: disable use of MTRR registers");
diff --git a/drivers/video/aty/radeonfb.h b/drivers/video/aty/radeonfb.h
index ea0b5b47acaf..974ca6d86540 100644
--- a/drivers/video/aty/radeonfb.h
+++ b/drivers/video/aty/radeonfb.h
@@ -638,4 +638,6 @@ static inline void radeonfb_bl_init(struct radeonfb_info *rinfo) {}
 static inline void radeonfb_bl_exit(struct radeonfb_info *rinfo) {}
 #endif
 
+extern int accel_cexp;
+
 #endif /* __RADEONFB_H__ */