62 files changed, 191 insertions, 196 deletions

diff --git a/arch/powerpc/oprofile/cell/vma_map.c b/arch/powerpc/oprofile/cell/vma_map.c
index 76ec1d16aef7..9a932177e70e 100644
--- a/arch/powerpc/oprofile/cell/vma_map.c
+++ b/arch/powerpc/oprofile/cell/vma_map.c
@@ -92,7 +92,7 @@ vma_map_add(struct vma_to_fileoffset_map *map, unsigned int vma,
  * A pointer to the first vma_map in the generated list
  * of vma_maps is returned.  */
 struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
-                                             unsigned long spu_elf_start)
+                                             unsigned long __spu_elf_start)
 {
         static const unsigned char expected[EI_PAD] = {
                 [EI_MAG0] = ELFMAG0,
@@ -107,9 +107,11 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
 
         int grd_val;
         struct vma_to_fileoffset_map *map = NULL;
+        void __user *spu_elf_start = (void __user *)__spu_elf_start;
         struct spu_overlay_info ovly;
         unsigned int overlay_tbl_offset = -1;
-        unsigned long phdr_start, shdr_start;
+        Elf32_Phdr __user *phdr_start;
+        Elf32_Shdr __user *shdr_start;
         Elf32_Ehdr ehdr;
         Elf32_Phdr phdr;
         Elf32_Shdr shdr, shdr_str;
@@ -121,12 +123,12 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
         unsigned int ovly_buf_table_sym = 0;
         unsigned int ovly_table_end_sym = 0;
         unsigned int ovly_buf_table_end_sym = 0;
-        unsigned long ovly_table;
+        struct spu_overlay_info __user *ovly_table;
         unsigned int n_ovlys;
 
         /* Get and validate ELF header.  */
 
-        if (copy_from_user(&ehdr, (void *) spu_elf_start, sizeof (ehdr)))
+        if (copy_from_user(&ehdr, spu_elf_start, sizeof (ehdr)))
                 goto fail;
 
         if (memcmp(ehdr.e_ident, expected, EI_PAD) != 0) {
@@ -152,9 +154,7 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
 
         /* Traverse program headers.  */
         for (i = 0; i < ehdr.e_phnum; i++) {
-                if (copy_from_user(&phdr,
-                                   (void *) (phdr_start + i * sizeof(phdr)),
-                                   sizeof(phdr)))
+                if (copy_from_user(&phdr, phdr_start + i, sizeof(phdr)))
                         goto fail;
 
                 if (phdr.p_type != PT_LOAD)
@@ -171,9 +171,7 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
         pr_debug("SPU_PROF: Created non-overlay maps\n");
         /* Traverse section table and search for overlay-related symbols.  */
         for (i = 0; i < ehdr.e_shnum; i++) {
-                if (copy_from_user(&shdr,
-                                   (void *) (shdr_start + i * sizeof(shdr)),
-                                   sizeof(shdr)))
+                if (copy_from_user(&shdr, shdr_start + i, sizeof(shdr)))
                         goto fail;
 
                 if (shdr.sh_type != SHT_SYMTAB)
@@ -182,8 +180,7 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
                         continue;
 
                 if (copy_from_user(&shdr_str,
-                                   (void *) (shdr_start + shdr.sh_link *
-                                             sizeof(shdr)),
+                                   shdr_start + shdr.sh_link,
                                    sizeof(shdr)))
                         goto fail;
 
@@ -191,15 +188,15 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
                         goto fail;;
 
                 for (j = 0; j < shdr.sh_size / sizeof (sym); j++) {
-                        if (copy_from_user(&sym, (void *) (spu_elf_start +
-                                                       shdr.sh_offset + j *
-                                                           sizeof (sym)),
+                        if (copy_from_user(&sym, spu_elf_start +
+                                                 shdr.sh_offset +
+                                                 j * sizeof (sym),
                                            sizeof (sym)))
                                 goto fail;
 
-                        if (copy_from_user(name, (void *)
-                                           (spu_elf_start + shdr_str.sh_offset +
-                                            sym.st_name),
+                        if (copy_from_user(name, 
+                                           spu_elf_start + shdr_str.sh_offset +
+                                           sym.st_name,
                                            20))
                                 goto fail;
 
@@ -245,9 +242,7 @@ struct vma_to_fileoffset_map *create_vma_map(const struct spu *aSpu,
 
         /* Traverse overlay table.  */
         for (i = 0; i < n_ovlys; i++) {
-                if (copy_from_user(&ovly, (void *)
-                                   (ovly_table + i * sizeof (ovly)),
-                                   sizeof (ovly)))
+                if (copy_from_user(&ovly, ovly_table + i, sizeof (ovly)))
                         goto fail;
 
                 /* The ovly.vma/size/offset arguments are analogous to the same
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index ca52b587166d..a977f200db89 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -763,7 +763,7 @@ void xics_request_IPIs(void)
 }
 #endif /* CONFIG_SMP */
 
-void xics_teardown_cpu()
+void xics_teardown_cpu(void)
 {
         int cpu = smp_processor_id();
 
diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c
index 46b2a1cc8b54..0c09409fa45d 100644
--- a/drivers/char/n_tty.c
+++ b/drivers/char/n_tty.c
@@ -1183,7 +1183,7 @@ static int copy_from_read_buf(struct tty_struct *tty,
         return retval;
 }
 
-extern ssize_t redirected_tty_write(struct file *, const char *,
+extern ssize_t redirected_tty_write(struct file *, const char __user *,
                                                         size_t, loff_t *);
 
 /**
diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c
index 6d0dc5f9b6bb..6a6843a0a674 100644
--- a/drivers/char/nozomi.c
+++ b/drivers/char/nozomi.c
@@ -438,7 +438,7 @@ static void read_mem32(u32 *buf, const void __iomem *mem_addr_start,
                         u32 size_bytes)
 {
         u32 i = 0;
-        const u32 *ptr = (__force u32 *) mem_addr_start;
+        const u32 __iomem *ptr = mem_addr_start;
         u16 *buf16;
 
         if (unlikely(!ptr || !buf))
@@ -448,11 +448,11 @@ static void read_mem32(u32 *buf, const void __iomem *mem_addr_start,
         switch (size_bytes) {
         case 2: /* 2 bytes */
                 buf16 = (u16 *) buf;
-                *buf16 = __le16_to_cpu(readw((void __iomem *)ptr));
+                *buf16 = __le16_to_cpu(readw(ptr));
                 goto out;
                 break;
         case 4: /* 4 bytes */
-                *(buf) = __le32_to_cpu(readl((void __iomem *)ptr));
+                *(buf) = __le32_to_cpu(readl(ptr));
                 goto out;
                 break;
         }
@@ -461,11 +461,11 @@ static void read_mem32(u32 *buf, const void __iomem *mem_addr_start,
                 if (size_bytes - i == 2) {
                         /* Handle 2 bytes in the end */
                         buf16 = (u16 *) buf;
-                        *(buf16) = __le16_to_cpu(readw((void __iomem *)ptr));
+                        *(buf16) = __le16_to_cpu(readw(ptr));
                         i += 2;
                 } else {
                         /* Read 4 bytes */
-                        *(buf) = __le32_to_cpu(readl((void __iomem *)ptr));
+                        *(buf) = __le32_to_cpu(readl(ptr));
                         i += 4;
                 }
                 buf++;
@@ -484,7 +484,7 @@ static u32 write_mem32(void __iomem *mem_addr_start, const u32 *buf,
                         u32 size_bytes)
 {
         u32 i = 0;
-        u32 *ptr = (__force u32 *) mem_addr_start;
+        u32 __iomem *ptr = mem_addr_start;
         const u16 *buf16;
 
         if (unlikely(!ptr || !buf))
@@ -494,7 +494,7 @@ static u32 write_mem32(void __iomem *mem_addr_start, const u32 *buf,
         switch (size_bytes) {
         case 2: /* 2 bytes */
                 buf16 = (const u16 *)buf;
-                writew(__cpu_to_le16(*buf16), (void __iomem *)ptr);
+                writew(__cpu_to_le16(*buf16), ptr);
                 return 2;
                 break;
         case 1: /*
@@ -502,7 +502,7 @@ static u32 write_mem32(void __iomem *mem_addr_start, const u32 *buf,
                  * so falling through..
                  */
         case 4: /* 4 bytes */
-                writel(__cpu_to_le32(*buf), (void __iomem *)ptr);
+                writel(__cpu_to_le32(*buf), ptr);
                 return 4;
                 break;
         }
@@ -511,11 +511,11 @@ static u32 write_mem32(void __iomem *mem_addr_start, const u32 *buf,
                 if (size_bytes - i == 2) {
                         /* 2 bytes */
                         buf16 = (const u16 *)buf;
-                        writew(__cpu_to_le16(*buf16), (void __iomem *)ptr);
+                        writew(__cpu_to_le16(*buf16), ptr);
                         i += 2;
                 } else {
                         /* 4 bytes */
-                        writel(__cpu_to_le32(*buf), (void __iomem *)ptr);
+                        writel(__cpu_to_le32(*buf), ptr);
                         i += 4;
                 }
                 buf++;
diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index 3110bf7014f7..81f3f950cd7d 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -392,8 +392,8 @@ static atomic_t hifn_dev_number;
 
 struct hifn_desc
 {
-        volatile u32            l;
-        volatile u32            p;
+        volatile __le32         l;
+        volatile __le32         p;
 };
 
 struct hifn_dma {
@@ -481,10 +481,10 @@ struct hifn_device
 
 struct hifn_base_command
 {
-        volatile u16            masks;
-        volatile u16            session_num;
-        volatile u16            total_source_count;
-        volatile u16            total_dest_count;
+        volatile __le16         masks;
+        volatile __le16         session_num;
+        volatile __le16         total_source_count;
+        volatile __le16         total_dest_count;
 };
 
 #define HIFN_BASE_CMD_COMP              0x0100  /* enable compression engine */
@@ -504,10 +504,10 @@ struct hifn_base_command
  */
 struct hifn_crypt_command
 {
-        volatile u16            masks;
-        volatile u16            header_skip;
-        volatile u16            source_count;
-        volatile u16            reserved;
+        volatile __le16                 masks;
+        volatile __le16                 header_skip;
+        volatile __le16                 source_count;
+        volatile __le16                 reserved;
 };
 
 #define HIFN_CRYPT_CMD_ALG_MASK         0x0003          /* algorithm: */
@@ -670,7 +670,7 @@ static inline u32 hifn_read_0(struct hifn_device *dev, u32 reg)
 {
         u32 ret;
 
-        ret = readl((char *)(dev->bar[0]) + reg);
+        ret = readl(dev->bar[0] + reg);
 
         return ret;
 }
@@ -679,19 +679,19 @@ static inline u32 hifn_read_1(struct hifn_device *dev, u32 reg)
 {
         u32 ret;
 
-        ret = readl((char *)(dev->bar[1]) + reg);
+        ret = readl(dev->bar[1] + reg);
 
         return ret;
 }
 
 static inline void hifn_write_0(struct hifn_device *dev, u32 reg, u32 val)
 {
-        writel(val, (char *)(dev->bar[0]) + reg);
+        writel(val, dev->bar[0] + reg);
 }
 
 static inline void hifn_write_1(struct hifn_device *dev, u32 reg, u32 val)
 {
-        writel(val, (char *)(dev->bar[1]) + reg);
+        writel(val, dev->bar[1] + reg);
 }
 
 static void hifn_wait_puc(struct hifn_device *dev)
diff --git a/drivers/dma/fsldma.h b/drivers/dma/fsldma.h
index fddd6aee2a63..6faf07ba0d0e 100644
--- a/drivers/dma/fsldma.h
+++ b/drivers/dma/fsldma.h
@@ -75,12 +75,15 @@
 #define FSL_DMA_DGSR_EOSI       0x02
 #define FSL_DMA_DGSR_EOLSI      0x01
 
+typedef u64 __bitwise v64;
+typedef u32 __bitwise v32;
+
 struct fsl_dma_ld_hw {
-        u64 __bitwise   src_addr;
-        u64 __bitwise   dst_addr;
-        u64 __bitwise   next_ln_addr;
-        u32 __bitwise   count;
-        u32 __bitwise   reserve;
+        v64 src_addr;
+        v64 dst_addr;
+        v64 next_ln_addr;
+        v32 count;
+        v32 reserve;
 } __attribute__((aligned(32)));
 
 struct fsl_desc_sw {
@@ -92,13 +95,13 @@ struct fsl_desc_sw {
 } __attribute__((aligned(32)));
 
 struct fsl_dma_chan_regs {
-        u32 __bitwise   mr;     /* 0x00 - Mode Register */
-        u32 __bitwise   sr;     /* 0x04 - Status Register */
-        u64 __bitwise   cdar;   /* 0x08 - Current descriptor address register */
-        u64 __bitwise   sar;    /* 0x10 - Source Address Register */
-        u64 __bitwise   dar;    /* 0x18 - Destination Address Register */
-        u32 __bitwise   bcr;    /* 0x20 - Byte Count Register */
-        u64 __bitwise   ndar;   /* 0x24 - Next Descriptor Address Register */
+        u32 mr; /* 0x00 - Mode Register */
+        u32 sr; /* 0x04 - Status Register */
+        u64 cdar;       /* 0x08 - Current descriptor address register */
+        u64 sar;        /* 0x10 - Source Address Register */
+        u64 dar;        /* 0x18 - Destination Address Register */
+        u32 bcr;        /* 0x20 - Byte Count Register */
+        u64 ndar;       /* 0x24 - Next Descriptor Address Register */
 };
 
 struct fsl_dma_chan;
@@ -151,25 +154,27 @@ struct fsl_dma_chan {
 #ifndef __powerpc64__
 static u64 in_be64(const u64 __iomem *addr)
 {
-        return ((u64)in_be32((u32 *)addr) << 32) | (in_be32((u32 *)addr + 1));
+        return ((u64)in_be32((u32 __iomem *)addr) << 32) |
+                (in_be32((u32 __iomem *)addr + 1));
 }
 
 static void out_be64(u64 __iomem *addr, u64 val)
 {
-        out_be32((u32 *)addr, val >> 32);
-        out_be32((u32 *)addr + 1, (u32)val);
+        out_be32((u32 __iomem *)addr, val >> 32);
+        out_be32((u32 __iomem *)addr + 1, (u32)val);
 }
 
 /* There is no asm instructions for 64 bits reverse loads and stores */
 static u64 in_le64(const u64 __iomem *addr)
 {
-        return ((u64)in_le32((u32 *)addr + 1) << 32) | (in_le32((u32 *)addr));
+        return ((u64)in_le32((u32 __iomem *)addr + 1) << 32) |
+                (in_le32((u32 __iomem *)addr));
 }
 
 static void out_le64(u64 __iomem *addr, u64 val)
 {
-        out_le32((u32 *)addr + 1, val >> 32);
-        out_le32((u32 *)addr, (u32)val);
+        out_le32((u32 __iomem *)addr + 1, val >> 32);
+        out_le32((u32 __iomem *)addr, (u32)val);
 }
 #endif
 
@@ -182,9 +187,11 @@ static void out_le64(u64 __iomem *addr, u64 val)
 
 #define DMA_TO_CPU(fsl_chan, d, width)                                  \
                 (((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ?           \
-                        be##width##_to_cpu(d) : le##width##_to_cpu(d))
+                        be##width##_to_cpu((__force __be##width)(v##width)d) : \
+                        le##width##_to_cpu((__force __le##width)(v##width)d))
 #define CPU_TO_DMA(fsl_chan, c, width)                                  \
                 (((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ?           \
-                        cpu_to_be##width(c) : cpu_to_le##width(c))
+                        (__force v##width)cpu_to_be##width(c) :         \
+                        (__force v##width)cpu_to_le##width(c))
 
 #endif  /* __DMA_FSLDMA_H */
diff --git a/drivers/dma/ioat_dca.c b/drivers/dma/ioat_dca.c
index 0fa8a98051a8..9e922760b7ff 100644
--- a/drivers/dma/ioat_dca.c
+++ b/drivers/dma/ioat_dca.c
@@ -98,7 +98,7 @@ struct ioat_dca_slot {
 
 struct ioat_dca_priv {
         void __iomem            *iobase;
-        void                    *dca_base;
+        void __iomem            *dca_base;
         int                      max_requesters;
         int                      requester_count;
         u8                       tag_map[IOAT_TAG_MAP_LEN];
@@ -338,7 +338,7 @@ static struct dca_ops ioat2_dca_ops = {
         .get_tag                = ioat2_dca_get_tag,
 };
 
-static int ioat2_dca_count_dca_slots(void *iobase, u16 dca_offset)
+static int ioat2_dca_count_dca_slots(void __iomem *iobase, u16 dca_offset)
 {
         int slots = 0;
         u32 req;
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
index a58ad8a470f9..781ea5950373 100644
--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -154,7 +154,7 @@ static void addr_send_arp(struct sockaddr_in *dst_in)
 {
         struct rtable *rt;
         struct flowi fl;
-        u32 dst_ip = dst_in->sin_addr.s_addr;
+        __be32 dst_ip = dst_in->sin_addr.s_addr;
 
         memset(&fl, 0, sizeof fl);
         fl.nl_u.ip4_u.daddr = dst_ip;
@@ -169,8 +169,8 @@ static int addr_resolve_remote(struct sockaddr_in *src_in,
                                struct sockaddr_in *dst_in,
                                struct rdma_dev_addr *addr)
 {
-        u32 src_ip = src_in->sin_addr.s_addr;
-        u32 dst_ip = dst_in->sin_addr.s_addr;
+        __be32 src_ip = src_in->sin_addr.s_addr;
+        __be32 dst_ip = dst_in->sin_addr.s_addr;
         struct flowi fl;
         struct rtable *rt;
         struct neighbour *neigh;
@@ -257,7 +257,7 @@ static int addr_resolve_local(struct sockaddr_in *src_in,
                               struct rdma_dev_addr *addr)
 {
         struct net_device *dev;
-        u32 src_ip = src_in->sin_addr.s_addr;
+        __be32 src_ip = src_in->sin_addr.s_addr;
         __be32 dst_ip = dst_in->sin_addr.s_addr;
         int ret;
 
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 4df405157086..faa7ce318a6d 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -393,7 +393,7 @@ static int cm_alloc_id(struct cm_id_private *cm_id_priv)
                 spin_unlock_irqrestore(&cm.lock, flags);
         } while( (ret == -EAGAIN) && idr_pre_get(&cm.local_id_table, GFP_KERNEL) );
 
-        cm_id_priv->id.local_id = (__force __be32) (id ^ cm.random_id_operand);
+        cm_id_priv->id.local_id = (__force __be32)id ^ cm.random_id_operand;
         return ret;
 }
 
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 34507daaf9b6..d81c156a22b4 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -168,15 +168,15 @@ struct cma_work {
 union cma_ip_addr {
         struct in6_addr ip6;
         struct {
-                __u32 pad[3];
-                __u32 addr;
+                __be32 pad[3];
+                __be32 addr;
         } ip4;
 };
 
 struct cma_hdr {
         u8 cma_version;
         u8 ip_version;  /* IP version: 7:4 */
-        __u16 port;
+        __be16 port;
         union cma_ip_addr src_addr;
         union cma_ip_addr dst_addr;
 };
@@ -186,8 +186,8 @@ struct sdp_hh {
         u8 sdp_version; /* Major version: 7:4 */
         u8 ip_version;  /* IP version: 7:4 */
         u8 sdp_specific1[10];
-        __u16 port;
-        __u16 sdp_specific2;
+        __be16 port;
+        __be16 sdp_specific2;
         union cma_ip_addr src_addr;
         union cma_ip_addr dst_addr;
 };
@@ -663,7 +663,7 @@ static inline int cma_any_port(struct sockaddr *addr)
 }
 
 static int cma_get_net_info(void *hdr, enum rdma_port_space ps,
-                            u8 *ip_ver, __u16 *port,
+                            u8 *ip_ver, __be16 *port,
                             union cma_ip_addr **src, union cma_ip_addr **dst)
 {
         switch (ps) {
@@ -695,7 +695,7 @@ static int cma_get_net_info(void *hdr, enum rdma_port_space ps,
 
 static void cma_save_net_info(struct rdma_addr *addr,
                               struct rdma_addr *listen_addr,
-                              u8 ip_ver, __u16 port,
+                              u8 ip_ver, __be16 port,
                               union cma_ip_addr *src, union cma_ip_addr *dst)
 {
         struct sockaddr_in *listen4, *ip4;
@@ -996,7 +996,7 @@ static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id,
         struct rdma_cm_id *id;
         struct rdma_route *rt;
         union cma_ip_addr *src, *dst;
-        __u16 port;
+        __be16 port;
         u8 ip_ver;
 
         if (cma_get_net_info(ib_event->private_data, listen_id->ps,
@@ -1043,7 +1043,7 @@ static struct rdma_id_private *cma_new_udp_id(struct rdma_cm_id *listen_id,
         struct rdma_id_private *id_priv;
         struct rdma_cm_id *id;
         union cma_ip_addr *src, *dst;
-        __u16 port;
+        __be16 port;
         u8 ip_ver;
         int ret;
 
@@ -1165,7 +1165,7 @@ static void cma_set_compare_data(enum rdma_port_space ps, struct sockaddr *addr,
 {
         struct cma_hdr *cma_data, *cma_mask;
         struct sdp_hh *sdp_data, *sdp_mask;
-        __u32 ip4_addr;
+        __be32 ip4_addr;
         struct in6_addr ip6_addr;
 
         memset(compare, 0, sizeof *compare);
@@ -1181,12 +1181,12 @@ static void cma_set_compare_data(enum rdma_port_space ps, struct sockaddr *addr,
                         sdp_set_ip_ver(sdp_data, 4);
                         sdp_set_ip_ver(sdp_mask, 0xF);
                         sdp_data->dst_addr.ip4.addr = ip4_addr;
-                        sdp_mask->dst_addr.ip4.addr = ~0;
+                        sdp_mask->dst_addr.ip4.addr = htonl(~0);
                 } else {
                         cma_set_ip_ver(cma_data, 4);
                         cma_set_ip_ver(cma_mask, 0xF);
                         cma_data->dst_addr.ip4.addr = ip4_addr;
-                        cma_mask->dst_addr.ip4.addr = ~0;
+                        cma_mask->dst_addr.ip4.addr = htonl(~0);
                 }
                 break;
         case AF_INET6:
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c
index 564e425d71dd..645e6e040bfb 100644
--- a/drivers/lguest/lguest_user.c
+++ b/drivers/lguest/lguest_user.c
@@ -189,7 +189,7 @@ static int initialize(struct file *file, const unsigned long __user *input)
         }
 
         /* Populate the easy fields of our "struct lguest" */
-        lg->mem_base = (void __user *)(long)args[0];
+        lg->mem_base = (void __user *)args[0];
         lg->pfn_limit = args[1];
 
         /* This is the first cpu (cpu 0) and it will start booting at args[3] */
diff --git a/drivers/media/common/saa7146_core.c b/drivers/media/common/saa7146_core.c
index 168a8d3a5e55..7707b8c7394b 100644
--- a/drivers/media/common/saa7146_core.c
+++ b/drivers/media/common/saa7146_core.c
@@ -306,25 +306,22 @@ static irqreturn_t interrupt_hw(int irq, void *dev_id)
                 return IRQ_NONE;
         }
 
-        if( 0 != (dev->ext)) {
-                if( 0 != (dev->ext->irq_mask & isr )) {
-                        if( 0 != dev->ext->irq_func ) {
+        if (dev->ext) {
+                if (dev->ext->irq_mask & isr) {
+                        if (dev->ext->irq_func)
                                 dev->ext->irq_func(dev, &isr);
-                        }
                         isr &= ~dev->ext->irq_mask;
                 }
         }
         if (0 != (isr & (MASK_27))) {
                 DEB_INT(("irq: RPS0 (0x%08x).\n",isr));
-                if( 0 != dev->vv_data && 0 != dev->vv_callback) {
+                if (dev->vv_data && dev->vv_callback)
                         dev->vv_callback(dev,isr);
-                }
                 isr &= ~MASK_27;
         }
         if (0 != (isr & (MASK_28))) {
-                if( 0 != dev->vv_data && 0 != dev->vv_callback) {
+                if (dev->vv_data && dev->vv_callback)
                         dev->vv_callback(dev,isr);
-                }
                 isr &= ~MASK_28;
         }
         if (0 != (isr & (MASK_16|MASK_17))) {
diff --git a/drivers/media/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c
index f0703d8bc3e8..171afe7da6b6 100644
--- a/drivers/media/common/saa7146_fops.c
+++ b/drivers/media/common/saa7146_fops.c
@@ -272,7 +272,7 @@ static int fops_open(struct inode *inode, struct file *file)
 
         result = 0;
 out:
-        if( fh != 0 && result != 0 ) {
+        if (fh && result != 0) {
                 kfree(fh);
                 file->private_data = NULL;
         }
diff --git a/drivers/media/dvb/dvb-core/dvb_net.c b/drivers/media/dvb/dvb-core/dvb_net.c
index ed3f8268ed11..4c8b62e2c035 100644
--- a/drivers/media/dvb/dvb-core/dvb_net.c
+++ b/drivers/media/dvb/dvb-core/dvb_net.c
@@ -784,8 +784,8 @@ static int dvb_net_ts_callback(const u8 *buffer1, size_t buffer1_len,
 {
         struct net_device *dev = feed->priv;
 
-        if (buffer2 != 0)
-                printk(KERN_WARNING "buffer2 not 0: %p.\n", buffer2);
+        if (buffer2)
+                printk(KERN_WARNING "buffer2 not NULL: %p.\n", buffer2);
         if (buffer1_len > 32768)
                 printk(KERN_WARNING "length > 32k: %zu.\n", buffer1_len);
         /* printk("TS callback: %u bytes, %u TS cells @ %p.\n",
diff --git a/drivers/media/video/adv7170.c b/drivers/media/video/adv7170.c
index cbab53fc6243..fea2e723e34b 100644
--- a/drivers/media/video/adv7170.c
+++ b/drivers/media/video/adv7170.c
@@ -408,7 +408,7 @@ adv7170_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/adv7175.c b/drivers/media/video/adv7175.c
index 0d0c554bfdf7..10d4d89623f1 100644
--- a/drivers/media/video/adv7175.c
+++ b/drivers/media/video/adv7175.c
@@ -426,7 +426,7 @@ adv7175_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/bt819.c b/drivers/media/video/bt819.c
index 12d1b9248be5..e663cc045c41 100644
--- a/drivers/media/video/bt819.c
+++ b/drivers/media/video/bt819.c
@@ -524,7 +524,7 @@ bt819_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/bt856.c b/drivers/media/video/bt856.c
index e1028a76c042..7dee2e3235ad 100644
--- a/drivers/media/video/bt856.c
+++ b/drivers/media/video/bt856.c
@@ -311,7 +311,7 @@ bt856_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/dpc7146.c b/drivers/media/video/dpc7146.c
index 566e479e2629..9ceb6b2f3949 100644
--- a/drivers/media/video/dpc7146.c
+++ b/drivers/media/video/dpc7146.c
@@ -131,7 +131,7 @@ static int dpc_probe(struct saa7146_dev* dev)
         device_for_each_child(&dpc->i2c_adapter.dev, dpc, dpc_check_clients);
 
         /* check if all devices are present */
-        if( 0 == dpc->saa7111a ) {
+        if (!dpc->saa7111a) {
                 DEB_D(("dpc_v4l2.o: dpc_attach failed for this device.\n"));
                 i2c_del_adapter(&dpc->i2c_adapter);
                 kfree(dpc);
diff --git a/drivers/media/video/mt20xx.c b/drivers/media/video/mt20xx.c
index 58bab653330f..74fd6a01d4c4 100644
--- a/drivers/media/video/mt20xx.c
+++ b/drivers/media/video/mt20xx.c
@@ -647,7 +647,7 @@ struct dvb_frontend *microtune_attach(struct dvb_frontend *fe,
         default:
                 tuner_info("microtune %s found, not (yet?) supported, sorry :-/\n",
                            name);
-                return 0;
+                return NULL;
         }
 
         strlcpy(fe->ops.tuner_ops.info.name, name,
diff --git a/drivers/media/video/mxb.c b/drivers/media/video/mxb.c
index add6d0d680be..cb5a510f9251 100644
--- a/drivers/media/video/mxb.c
+++ b/drivers/media/video/mxb.c
@@ -221,9 +221,8 @@ static int mxb_probe(struct saa7146_dev* dev)
         device_for_each_child(&mxb->i2c_adapter.dev, mxb, mxb_check_clients);
 
         /* check if all devices are present */
-        if(    0 == mxb->tea6420_1      || 0 == mxb->tea6420_2  || 0 == mxb->tea6415c
-            || 0 == mxb->tda9840        || 0 == mxb->saa7111a   || 0 == mxb->tuner ) {
-
+        if (!mxb->tea6420_1 || !mxb->tea6420_2 || !mxb->tea6415c ||
+            !mxb->tda9840 || !mxb->saa7111a || !mxb->tuner) {
                 printk("mxb: did not find all i2c devices. aborting\n");
                 i2c_del_adapter(&mxb->i2c_adapter);
                 kfree(mxb);
diff --git a/drivers/media/video/pvrusb2/pvrusb2-ctrl.c b/drivers/media/video/pvrusb2/pvrusb2-ctrl.c
index 46f156fb108c..5a3e8d21a38a 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-ctrl.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-ctrl.c
@@ -60,7 +60,7 @@ int pvr2_ctrl_set_mask_value(struct pvr2_ctrl *cptr,int mask,int val)
         int ret = 0;
         if (!cptr) return -EINVAL;
         LOCK_TAKE(cptr->hdw->big_lock); do {
-                if (cptr->info->set_value != 0) {
+                if (cptr->info->set_value) {
                         if (cptr->info->type == pvr2_ctl_bitmask) {
                                 mask &= cptr->info->def.type_bitmask.valid_bits;
                         } else if (cptr->info->type == pvr2_ctl_int) {
@@ -265,7 +265,7 @@ unsigned int pvr2_ctrl_get_v4lflags(struct pvr2_ctrl *cptr)
 int pvr2_ctrl_is_writable(struct pvr2_ctrl *cptr)
 {
         if (!cptr) return 0;
-        return cptr->info->set_value != 0;
+        return cptr->info->set_value != NULL;
 }
 
 
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index 41ae980405ed..d6955fa39598 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -2291,7 +2291,7 @@ static int pvr2_hdw_commit_setup(struct pvr2_hdw *hdw)
 
         for (idx = 0; idx < hdw->control_cnt; idx++) {
                 cptr = hdw->controls + idx;
-                if (cptr->info->is_dirty == 0) continue;
+                if (!cptr->info->is_dirty) continue;
                 if (!cptr->info->is_dirty(cptr)) continue;
                 commit_flag = !0;
 
@@ -2646,7 +2646,7 @@ void pvr2_hdw_cpufw_set_enabled(struct pvr2_hdw *hdw,
         u16 address;
         unsigned int pipe;
         LOCK_TAKE(hdw->big_lock); do {
-                if ((hdw->fw_buffer == 0) == !enable_flag) break;
+                if ((hdw->fw_buffer == NULL) == !enable_flag) break;
 
                 if (!enable_flag) {
                         pvr2_trace(PVR2_TRACE_FIRMWARE,
@@ -2715,7 +2715,7 @@ void pvr2_hdw_cpufw_set_enabled(struct pvr2_hdw *hdw,
 /* Return true if we're in a mode for retrieval CPU firmware */
 int pvr2_hdw_cpufw_get_enabled(struct pvr2_hdw *hdw)
 {
-        return hdw->fw_buffer != 0;
+        return hdw->fw_buffer != NULL;
 }
 
 
diff --git a/drivers/media/video/pvrusb2/pvrusb2-io.c b/drivers/media/video/pvrusb2/pvrusb2-io.c
index ce3c8982ffe0..a9889ff96ecc 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-io.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-io.c
@@ -563,7 +563,7 @@ void pvr2_stream_kill(struct pvr2_stream *sp)
         struct pvr2_buffer *bp;
         mutex_lock(&sp->mutex); do {
                 pvr2_stream_internal_flush(sp);
-                while ((bp = pvr2_stream_get_ready_buffer(sp)) != 0) {
+                while ((bp = pvr2_stream_get_ready_buffer(sp)) != NULL) {
                         pvr2_buffer_set_idle(bp);
                 }
                 if (sp->buffer_total_count != sp->buffer_target_count) {
diff --git a/drivers/media/video/pvrusb2/pvrusb2-ioread.c b/drivers/media/video/pvrusb2/pvrusb2-ioread.c
index f782418afa45..c572212c9f15 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-ioread.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-ioread.c
@@ -165,7 +165,7 @@ static int pvr2_ioread_start(struct pvr2_ioread *cp)
         if (!(cp->stream)) return 0;
         pvr2_trace(PVR2_TRACE_START_STOP,
                    "/*---TRACE_READ---*/ pvr2_ioread_start id=%p",cp);
-        while ((bp = pvr2_stream_get_idle_buffer(cp->stream)) != 0) {
+        while ((bp = pvr2_stream_get_idle_buffer(cp->stream)) != NULL) {
                 stat = pvr2_buffer_queue(bp);
                 if (stat < 0) {
                         pvr2_trace(PVR2_TRACE_DATA_FLOW,
diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c
index f991d72fe108..e0a453a6543d 100644
--- a/drivers/media/video/pwc/pwc-if.c
+++ b/drivers/media/video/pwc/pwc-if.c
@@ -915,7 +915,7 @@ static void pwc_iso_stop(struct pwc_device *pdev)
                 struct urb *urb;
 
                 urb = pdev->sbuf[i].urb;
-                if (urb != 0) {
+                if (urb) {
                         PWC_DEBUG_MEMORY("Unlinking URB %p\n", urb);
                         usb_kill_urb(urb);
                 }
@@ -931,7 +931,7 @@ static void pwc_iso_free(struct pwc_device *pdev)
                 struct urb *urb;
 
                 urb = pdev->sbuf[i].urb;
-                if (urb != 0) {
+                if (urb) {
                         PWC_DEBUG_MEMORY("Freeing URB\n");
                         usb_free_urb(urb);
                         pdev->sbuf[i].urb = NULL;
@@ -1759,8 +1759,7 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id
 
         /* Allocate video_device structure */
         pdev->vdev = video_device_alloc();
-        if (pdev->vdev == 0)
-        {
+        if (!pdev->vdev) {
                 PWC_ERROR("Err, cannot allocate video_device struture. Failing probe.");
                 kfree(pdev);
                 return -ENOMEM;
diff --git a/drivers/media/video/saa7110.c b/drivers/media/video/saa7110.c
index 061134a7ba9f..1df2602cd184 100644
--- a/drivers/media/video/saa7110.c
+++ b/drivers/media/video/saa7110.c
@@ -488,7 +488,7 @@ saa7110_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
@@ -496,7 +496,7 @@ saa7110_detect_client (struct i2c_adapter *adapter,
         strlcpy(I2C_NAME(client), "saa7110", sizeof(I2C_NAME(client)));
 
         decoder = kzalloc(sizeof(struct saa7110), GFP_KERNEL);
-        if (decoder == 0) {
+        if (!decoder) {
                 kfree(client);
                 return -ENOMEM;
         }
diff --git a/drivers/media/video/saa7111.c b/drivers/media/video/saa7111.c
index 7ae2d646d000..a0772c53bb1f 100644
--- a/drivers/media/video/saa7111.c
+++ b/drivers/media/video/saa7111.c
@@ -502,7 +502,7 @@ saa7111_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/saa7114.c b/drivers/media/video/saa7114.c
index 677df51de1a9..bf91a4faa706 100644
--- a/drivers/media/video/saa7114.c
+++ b/drivers/media/video/saa7114.c
@@ -841,7 +841,7 @@ saa7114_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/saa7185.c b/drivers/media/video/saa7185.c
index 66cc92c0ea66..41f70440fd3b 100644
--- a/drivers/media/video/saa7185.c
+++ b/drivers/media/video/saa7185.c
@@ -403,7 +403,7 @@ saa7185_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/tda9840.c b/drivers/media/video/tda9840.c
index ef494febb5e4..bdca5d278978 100644
--- a/drivers/media/video/tda9840.c
+++ b/drivers/media/video/tda9840.c
@@ -172,7 +172,7 @@ static int detect(struct i2c_adapter *adapter, int address, int kind)
 
         /* allocate memory for client structure */
         client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (0 == client) {
+        if (!client) {
                 printk("not enough kernel memory\n");
                 return -ENOMEM;
         }
diff --git a/drivers/media/video/tea6415c.c b/drivers/media/video/tea6415c.c
index 523df0b8cc63..df2fad9f391e 100644
--- a/drivers/media/video/tea6415c.c
+++ b/drivers/media/video/tea6415c.c
@@ -64,7 +64,7 @@ static int detect(struct i2c_adapter *adapter, int address, int kind)
 
         /* allocate memory for client structure */
         client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (0 == client) {
+        if (!client) {
                 return -ENOMEM;
         }
 
diff --git a/drivers/media/video/tea6420.c b/drivers/media/video/tea6420.c
index ca05cd655087..4ff6c63f7237 100644
--- a/drivers/media/video/tea6420.c
+++ b/drivers/media/video/tea6420.c
@@ -101,7 +101,7 @@ static int tea6420_detect(struct i2c_adapter *adapter, int address, int kind)
 
         /* allocate memory for client structure */
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (0 == client) {
+        if (!client) {
                 return -ENOMEM;
         }
 
diff --git a/drivers/media/video/tvp5150.c b/drivers/media/video/tvp5150.c
index d28318cb2b8d..b6e24e714a23 100644
--- a/drivers/media/video/tvp5150.c
+++ b/drivers/media/video/tvp5150.c
@@ -1072,12 +1072,12 @@ static int tvp5150_detect_client(struct i2c_adapter *adapter,
                 return 0;
 
         c = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (c == 0)
+        if (!c)
                 return -ENOMEM;
         memcpy(c, &client_template, sizeof(struct i2c_client));
 
         core = kzalloc(sizeof(struct tvp5150), GFP_KERNEL);
-        if (core == 0) {
+        if (!core) {
                 kfree(c);
                 return -ENOMEM;
         }
diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c
index dd3d7d2c8b0e..fea4946ee713 100644
--- a/drivers/media/video/zoran_driver.c
+++ b/drivers/media/video/zoran_driver.c
@@ -339,7 +339,7 @@ v4l_fbuffer_alloc (struct file *file)
                         /* Use kmalloc */
 
                         mem = kmalloc(fh->v4l_buffers.buffer_size, GFP_KERNEL);
-                        if (mem == 0) {
+                        if (!mem) {
                                 dprintk(1,
                                         KERN_ERR
                                         "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",
diff --git a/drivers/media/video/zr364xx.c b/drivers/media/video/zr364xx.c
index 1b44784d0efb..04949c823654 100644
--- a/drivers/media/video/zr364xx.c
+++ b/drivers/media/video/zr364xx.c
@@ -390,7 +390,7 @@ static int read_frame(struct zr364xx_camera *cam, int framenum)
 }
 
 
-static ssize_t zr364xx_read(struct file *file, char *buf, size_t cnt,
+static ssize_t zr364xx_read(struct file *file, char __user *buf, size_t cnt,
                             loff_t * ppos)
 {
         unsigned long count = cnt;
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 63fb1ff3ad10..f6f2d960cadb 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -28,14 +28,14 @@
 static inline void asic3_write_register(struct asic3 *asic,
                                  unsigned int reg, u32 value)
 {
-        iowrite16(value, (unsigned long)asic->mapping +
+        iowrite16(value, asic->mapping +
                   (reg >> asic->bus_shift));
 }
 
 static inline u32 asic3_read_register(struct asic3 *asic,
                                unsigned int reg)
 {
-        return ioread16((unsigned long)asic->mapping +
+        return ioread16(asic->mapping +
                         (reg >> asic->bus_shift));
 }
 
diff --git a/drivers/misc/fujitsu-laptop.c b/drivers/misc/fujitsu-laptop.c
index 1cfd7f3f1294..e2e7c05a147b 100644
--- a/drivers/misc/fujitsu-laptop.c
+++ b/drivers/misc/fujitsu-laptop.c
@@ -231,7 +231,7 @@ static int acpi_fujitsu_remove(struct acpi_device *device, int type)
 
         if (!device || !acpi_driver_data(device))
                 return -EINVAL;
-        fujitsu->acpi_handle = 0;
+        fujitsu->acpi_handle = NULL;
 
         return 0;
 }
diff --git a/drivers/misc/ibmasm/module.c b/drivers/misc/ibmasm/module.c
index 4f9d4a9da983..b5f6add34b0b 100644
--- a/drivers/misc/ibmasm/module.c
+++ b/drivers/misc/ibmasm/module.c
@@ -106,7 +106,7 @@ static int __devinit ibmasm_init_one(struct pci_dev *pdev, const struct pci_devi
         sp->irq = pdev->irq;
         sp->base_address = ioremap(pci_resource_start(pdev, 0),
                                         pci_resource_len(pdev, 0));
-        if (sp->base_address == 0) {
+        if (!sp->base_address) {
                 dev_err(sp->dev, "Failed to ioremap pci memory\n");
                 result =  -ENODEV;
                 goto error_ioremap;
diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index c884730c5eaf..1bfe5d16963b 100644
--- a/drivers/misc/lkdtm.c
+++ b/drivers/misc/lkdtm.c
@@ -197,7 +197,7 @@ static int lkdtm_parse_commandline(void)
 {
         int i;
 
-        if (cpoint_name == INVALID || cpoint_type == NONE ||
+        if (cpoint_name == NULL || cpoint_type == NULL ||
                                         cpoint_count < 1 || recur_count < 1)
                 return -EINVAL;
 
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index b09a53de1c53..d63cc93f055d 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -968,7 +968,7 @@ dm9000_interrupt(int irq, void *dev_id)
 struct dm9000_rxhdr {
         u8      RxPktReady;
         u8      RxStatus;
-        u16     RxLen;
+        __le16  RxLen;
 } __attribute__((__packed__));
 
 /*
diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index a8bec498cad6..f97224ce59da 100644
--- a/drivers/serial/8250_pci.c
+++ b/drivers/serial/8250_pci.c
@@ -1214,13 +1214,6 @@ static struct pciserial_board pci_boards[] __devinitdata = {
                 .base_baud      = 115200,
                 .uart_offset    = 8,
         },
-        [pbn_b0_8_115200] = {
-                .flags          = FL_BASE0,
-                .num_ports      = 8,
-                .base_baud      = 115200,
-                .uart_offset    = 8,
-        },
-
         [pbn_b0_1_921600] = {
                 .flags          = FL_BASE0,
                 .num_ports      = 1,
diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 6c8ecde6aad1..c0df924766a7 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -37,7 +37,7 @@ struct virtio_pci_device
         struct pci_dev *pci_dev;
 
         /* the IO mapping for the PCI config space */
-        void *ioaddr;
+        void __iomem *ioaddr;
 
         /* a list of queues so we can dispatch IRQs */
         spinlock_t lock;
@@ -111,7 +111,7 @@ static void vp_get(struct virtio_device *vdev, unsigned offset,
                    void *buf, unsigned len)
 {
         struct virtio_pci_device *vp_dev = to_vp_device(vdev);
-        void *ioaddr = vp_dev->ioaddr + VIRTIO_PCI_CONFIG + offset;
+        void __iomem *ioaddr = vp_dev->ioaddr + VIRTIO_PCI_CONFIG + offset;
         u8 *ptr = buf;
         int i;
 
@@ -125,7 +125,7 @@ static void vp_set(struct virtio_device *vdev, unsigned offset,
                    const void *buf, unsigned len)
 {
         struct virtio_pci_device *vp_dev = to_vp_device(vdev);
-        void *ioaddr = vp_dev->ioaddr + VIRTIO_PCI_CONFIG + offset;
+        void __iomem *ioaddr = vp_dev->ioaddr + VIRTIO_PCI_CONFIG + offset;
         const u8 *ptr = buf;
         int i;
 
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index 1f5a4289b848..1cb5b0a9f2ac 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -261,7 +261,7 @@ static void mode_to_access_flags(umode_t mode, umode_t bits_to_use,
         return;
 }
 
-static __le16 fill_ace_for_sid(struct cifs_ace *pntace,
+static __u16 fill_ace_for_sid(struct cifs_ace *pntace,
                         const struct cifs_sid *psid, __u64 nmode, umode_t bits)
 {
         int i;
@@ -411,7 +411,7 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl,
 static int set_chmod_dacl(struct cifs_acl *pndacl, struct cifs_sid *pownersid,
                         struct cifs_sid *pgrpsid, __u64 nmode)
 {
-        __le16 size = 0;
+        u16 size = 0;
         struct cifs_acl *pnndacl;
 
         pnndacl = (struct cifs_acl *)((char *)pndacl + sizeof(struct cifs_acl));
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 9816293442ab..0e081d5f32e8 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -1620,14 +1620,14 @@ static int journal_init_journal_head_cache(void)
 {
         int retval;
 
-        J_ASSERT(journal_head_cache == 0);
+        J_ASSERT(journal_head_cache == NULL);
         journal_head_cache = kmem_cache_create("journal_head",
                                 sizeof(struct journal_head),
                                 0,              /* offset */
                                 SLAB_TEMPORARY, /* flags */
                                 NULL);          /* ctor */
         retval = 0;
-        if (journal_head_cache == 0) {
+        if (!journal_head_cache) {
                 retval = -ENOMEM;
                 printk(KERN_EMERG "JBD: no memory for journal_head cache\n");
         }
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index ad2eacf570c6..d5f8eee7c88c 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -173,13 +173,13 @@ int __init journal_init_revoke_caches(void)
                                            0,
                                            SLAB_HWCACHE_ALIGN|SLAB_TEMPORARY,
                                            NULL);
-        if (revoke_record_cache == 0)
+        if (!revoke_record_cache)
                 return -ENOMEM;
 
         revoke_table_cache = kmem_cache_create("revoke_table",
                                            sizeof(struct jbd_revoke_table_s),
                                            0, SLAB_TEMPORARY, NULL);
-        if (revoke_table_cache == 0) {
+        if (!revoke_table_cache) {
                 kmem_cache_destroy(revoke_record_cache);
                 revoke_record_cache = NULL;
                 return -ENOMEM;
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 96ba846992e9..954cff001df6 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -219,7 +219,7 @@ static int jbd2_journal_start_thread(journal_t *journal)
         if (IS_ERR(t))
                 return PTR_ERR(t);
 
-        wait_event(journal->j_wait_done_commit, journal->j_task != 0);
+        wait_event(journal->j_wait_done_commit, journal->j_task != NULL);
         return 0;
 }
 
@@ -231,7 +231,7 @@ static void journal_kill_thread(journal_t *journal)
         while (journal->j_task) {
                 wake_up(&journal->j_wait_commit);
                 spin_unlock(&journal->j_state_lock);
-                wait_event(journal->j_wait_done_commit, journal->j_task == 0);
+                wait_event(journal->j_wait_done_commit, journal->j_task == NULL);
                 spin_lock(&journal->j_state_lock);
         }
         spin_unlock(&journal->j_state_lock);
@@ -1969,14 +1969,14 @@ static int journal_init_jbd2_journal_head_cache(void)
 {
         int retval;
 
-        J_ASSERT(jbd2_journal_head_cache == 0);
+        J_ASSERT(jbd2_journal_head_cache == NULL);
         jbd2_journal_head_cache = kmem_cache_create("jbd2_journal_head",
                                 sizeof(struct journal_head),
                                 0,              /* offset */
                                 SLAB_TEMPORARY, /* flags */
                                 NULL);          /* ctor */
         retval = 0;
-        if (jbd2_journal_head_cache == 0) {
+        if (!jbd2_journal_head_cache) {
                 retval = -ENOMEM;
                 printk(KERN_EMERG "JBD: no memory for journal_head cache\n");
         }
@@ -2002,14 +2002,14 @@ static struct journal_head *journal_alloc_journal_head(void)
         atomic_inc(&nr_journal_heads);
 #endif
         ret = kmem_cache_alloc(jbd2_journal_head_cache, GFP_NOFS);
-        if (ret == 0) {
+        if (!ret) {
                 jbd_debug(1, "out of memory for journal_head\n");
                 if (time_after(jiffies, last_warning + 5*HZ)) {
                         printk(KERN_NOTICE "ENOMEM in %s, retrying.\n",
                                __FUNCTION__);
                         last_warning = jiffies;
                 }
-                while (ret == 0) {
+                while (!ret) {
                         yield();
                         ret = kmem_cache_alloc(jbd2_journal_head_cache, GFP_NOFS);
                 }
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index df36f42e19e1..2e1453a5e998 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -174,13 +174,13 @@ int __init jbd2_journal_init_revoke_caches(void)
                                            0,
                                            SLAB_HWCACHE_ALIGN|SLAB_TEMPORARY,
                                            NULL);
-        if (jbd2_revoke_record_cache == 0)
+        if (!jbd2_revoke_record_cache)
                 return -ENOMEM;
 
         jbd2_revoke_table_cache = kmem_cache_create("jbd2_revoke_table",
                                            sizeof(struct jbd2_revoke_table_s),
                                            0, SLAB_TEMPORARY, NULL);
-        if (jbd2_revoke_table_cache == 0) {
+        if (!jbd2_revoke_table_cache) {
                 kmem_cache_destroy(jbd2_revoke_record_cache);
                 jbd2_revoke_record_cache = NULL;
                 return -ENOMEM;
diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index f85c5cf4934c..7ee4208793b6 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -283,7 +283,7 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
                 return balance_leaf_when_delete(tb, flag);
 
         zeros_num = 0;
-        if (flag == M_INSERT && body == 0)
+        if (flag == M_INSERT && !body)
                 zeros_num = ih_item_len(ih);
 
         pos_in_item = tb->tb_path->pos_in_item;
@@ -1728,7 +1728,7 @@ struct buffer_head *get_FEB(struct tree_balance *tb)
         struct buffer_info bi;
 
         for (i = 0; i < MAX_FEB_SIZE; i++)
-                if (tb->FEB[i] != 0)
+                if (tb->FEB[i] != NULL)
                         break;
 
         if (i == MAX_FEB_SIZE)
@@ -1827,7 +1827,7 @@ int get_left_neighbor_position(struct tree_balance *tb, int h)
 {
         int Sh_position = PATH_H_POSITION(tb->tb_path, h + 1);
 
-        RFALSE(PATH_H_PPARENT(tb->tb_path, h) == 0 || tb->FL[h] == 0,
+        RFALSE(PATH_H_PPARENT(tb->tb_path, h) == NULL || tb->FL[h] == NULL,
                "vs-12325: FL[%d](%p) or F[%d](%p) does not exist",
                h, tb->FL[h], h, PATH_H_PPARENT(tb->tb_path, h));
 
@@ -1841,7 +1841,7 @@ int get_right_neighbor_position(struct tree_balance *tb, int h)
 {
         int Sh_position = PATH_H_POSITION(tb->tb_path, h + 1);
 
-        RFALSE(PATH_H_PPARENT(tb->tb_path, h) == 0 || tb->FR[h] == 0,
+        RFALSE(PATH_H_PPARENT(tb->tb_path, h) == NULL || tb->FR[h] == NULL,
                "vs-12330: F[%d](%p) or FR[%d](%p) does not exist",
                h, PATH_H_PPARENT(tb->tb_path, h), h, tb->FR[h]);
 
diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index 0ee35c6c9b72..07d05e0842b7 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -153,7 +153,7 @@ static void create_virtual_node(struct tree_balance *tb, int h)
         if (vn->vn_mode == M_INSERT) {
                 struct virtual_item *vi = vn->vn_vi + vn->vn_affected_item_num;
 
-                RFALSE(vn->vn_ins_ih == 0,
+                RFALSE(vn->vn_ins_ih == NULL,
                        "vs-8040: item header of inserted item is not specified");
                 vi->vi_item_len = tb->insert_size[0];
                 vi->vi_ih = vn->vn_ins_ih;
@@ -857,7 +857,8 @@ static int get_lfree(struct tree_balance *tb, int h)
         struct buffer_head *l, *f;
         int order;
 
-        if ((f = PATH_H_PPARENT(tb->tb_path, h)) == 0 || (l = tb->FL[h]) == 0)
+        if ((f = PATH_H_PPARENT(tb->tb_path, h)) == NULL ||
+            (l = tb->FL[h]) == NULL)
                 return 0;
 
         if (f == l)
@@ -878,7 +879,8 @@ static int get_rfree(struct tree_balance *tb, int h)
         struct buffer_head *r, *f;
         int order;
 
-        if ((f = PATH_H_PPARENT(tb->tb_path, h)) == 0 || (r = tb->FR[h]) == 0)
+        if ((f = PATH_H_PPARENT(tb->tb_path, h)) == NULL ||
+            (r = tb->FR[h]) == NULL)
                 return 0;
 
         if (f == r)
diff --git a/fs/reiserfs/lbalance.c b/fs/reiserfs/lbalance.c
index 281f8061ac58..6de060a6aa7f 100644
--- a/fs/reiserfs/lbalance.c
+++ b/fs/reiserfs/lbalance.c
@@ -626,7 +626,7 @@ static void leaf_define_dest_src_infos(int shift_mode, struct tree_balance *tb,
                                "vs-10250: leaf_define_dest_src_infos: shift type is unknown (%d)",
                                shift_mode);
         }
-        RFALSE(src_bi->bi_bh == 0 || dest_bi->bi_bh == 0,
+        RFALSE(!src_bi->bi_bh || !dest_bi->bi_bh,
                "vs-10260: mode==%d, source (%p) or dest (%p) buffer is initialized incorrectly",
                shift_mode, src_bi->bi_bh, dest_bi->bi_bh);
 }
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index b378eea332ca..8867533cb727 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -452,7 +452,7 @@ static int reiserfs_add_entry(struct reiserfs_transaction_handle *th,
         buflen = DEH_SIZE + ROUND_UP(namelen);
         if (buflen > sizeof(small_buf)) {
                 buffer = kmalloc(buflen, GFP_NOFS);
-                if (buffer == 0)
+                if (!buffer)
                         return -ENOMEM;
         } else
                 buffer = small_buf;
diff --git a/fs/smbfs/smbiod.c b/fs/smbfs/smbiod.c
index fae8e85af0ed..6bd9b691a463 100644
--- a/fs/smbfs/smbiod.c
+++ b/fs/smbfs/smbiod.c
@@ -206,7 +206,7 @@ int smbiod_retry(struct smb_sb_info *server)
 
         smb_close_socket(server);
 
-        if (pid == 0) {
+        if (!pid) {
                 /* FIXME: this is fatal, umount? */
                 printk(KERN_ERR "smb_retry: no connection process\n");
                 server->state = CONN_RETRIED;
diff --git a/include/asm-frv/system.h b/include/asm-frv/system.h
index b400cea81487..2c57f4734746 100644
--- a/include/asm-frv/system.h
+++ b/include/asm-frv/system.h
@@ -234,7 +234,7 @@ extern void free_initmem(void);
                 break;                                                          \
                                                                                 \
         default:                                                                \
-                __xg_orig = 0;                                                  \
+                __xg_orig = (__typeof__(__xg_orig))0;                           \
                 asm volatile("break");                                          \
                 break;                                                          \
         }                                                                       \
@@ -259,7 +259,7 @@ extern uint32_t __cmpxchg_32(uint32_t *v, uint32_t test, uint32_t new);
                                          (__force uint32_t)__xg_test,           \
                                          (__force uint32_t)__xg_new); break;    \
         default:                                                                \
-                __xg_orig = 0;                                                  \
+                __xg_orig = (__typeof__(__xg_orig))0;                           \
                 asm volatile("break");                                          \
                 break;                                                          \
         }                                                                       \
diff --git a/include/linux/compat.h b/include/linux/compat.h
index a671dbff7a1f..8fa7857e153b 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -192,8 +192,8 @@ asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
                 struct compat_timeval __user *tvp);
 
 asmlinkage long compat_sys_wait4(compat_pid_t pid,
-                                 compat_uint_t *stat_addr, int options,
-                                 struct compat_rusage *ru);
+                                 compat_uint_t __user *stat_addr, int options,
+                                 struct compat_rusage __user *ru);
 
 #define BITS_PER_COMPAT_LONG    (8*sizeof(compat_long_t))
 
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 261e43a4c873..34d440698293 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -423,7 +423,7 @@ void dma_async_device_unregister(struct dma_device *device);
 /* --- Helper iov-locking functions --- */
 
 struct dma_page_list {
-        char *base_address;
+        char __user *base_address;
         int nr_pages;
         struct page **pages;
 };
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index e9c2fb01e89b..53d86b4b0ce0 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2082,7 +2082,7 @@ static int cgroup_tasks_open(struct inode *unused, struct file *file)
 
                 kfree(pidarray);
         } else {
-                ctr->buf = 0;
+                ctr->buf = NULL;
                 ctr->bufsz = 0;
         }
         file->private_data = ctr;
@@ -2614,7 +2614,7 @@ static int proc_cgroupstats_show(struct seq_file *m, void *v)
 
 static int cgroupstats_open(struct inode *inode, struct file *file)
 {
-        return single_open(file, proc_cgroupstats_show, 0);
+        return single_open(file, proc_cgroupstats_show, NULL);
 }
 
 static struct file_operations proc_cgroupstats_operations = {
diff --git a/kernel/futex.c b/kernel/futex.c
index 87a6428cb5b6..e43945e995f5 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -281,7 +281,7 @@ static int get_futex_key(u32 __user *uaddr, struct rw_semaphore *fshared,
  */
 static void get_futex_key_refs(union futex_key *key)
 {
-        if (key->both.ptr == 0)
+        if (key->both.ptr == NULL)
                 return;
         switch (key->both.offset & (FUT_OFF_INODE|FUT_OFF_MMSHARED)) {
                 case FUT_OFF_INODE:
diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
index ff90f049f8f6..04ac3a9e42cf 100644
--- a/kernel/futex_compat.c
+++ b/kernel/futex_compat.c
@@ -30,7 +30,7 @@ fetch_robust_entry(compat_uptr_t *uentry, struct robust_list __user **entry,
         return 0;
 }
 
-static void __user *futex_uaddr(struct robust_list *entry,
+static void __user *futex_uaddr(struct robust_list __user *entry,
                                 compat_long_t futex_offset)
 {
         compat_uptr_t base = ptr_to_compat(entry);
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index cd75b21dd4c3..99c4f36eb8a3 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -76,7 +76,7 @@ pte_t * __meminit vmemmap_pte_populate(pmd_t *pmd, unsigned long addr, int node)
                 pte_t entry;
                 void *p = vmemmap_alloc_block(PAGE_SIZE, node);
                 if (!p)
-                        return 0;
+                        return NULL;
                 entry = pfn_pte(__pa(p) >> PAGE_SHIFT, PAGE_KERNEL);
                 set_pte_at(&init_mm, addr, pte, entry);
         }
@@ -89,7 +89,7 @@ pmd_t * __meminit vmemmap_pmd_populate(pud_t *pud, unsigned long addr, int node)
         if (pmd_none(*pmd)) {
                 void *p = vmemmap_alloc_block(PAGE_SIZE, node);
                 if (!p)
-                        return 0;
+                        return NULL;
                 pmd_populate_kernel(&init_mm, pmd, p);
         }
         return pmd;
@@ -101,7 +101,7 @@ pud_t * __meminit vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node)
         if (pud_none(*pud)) {
                 void *p = vmemmap_alloc_block(PAGE_SIZE, node);
                 if (!p)
-                        return 0;
+                        return NULL;
                 pud_populate(&init_mm, pud, p);
         }
         return pud;
@@ -113,7 +113,7 @@ pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node)
         if (pgd_none(*pgd)) {
                 void *p = vmemmap_alloc_block(PAGE_SIZE, node);
                 if (!p)
-                        return 0;
+                        return NULL;
                 pgd_populate(&init_mm, pgd, p);
         }
         return pgd;
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 1aaa2e804b0d..126ca777b410 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -23,7 +23,7 @@
 struct rxrpc_crypt {
         union {
                 u8      x[FCRYPT_BSIZE];
-                u32     n[2];
+                __be32  n[2];
         };
 } __attribute__((aligned(8)));
 
diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
index f48434adb7c2..d1c296f2d617 100644
--- a/net/rxrpc/rxkad.c
+++ b/net/rxrpc/rxkad.c
@@ -261,6 +261,7 @@ static int rxkad_secure_packet(const struct rxrpc_call *call,
                 __be32 x[2];
         } tmpbuf __attribute__((aligned(8))); /* must all be in same page */
         __be32 x;
+        u32 y;
         int ret;
 
         sp = rxrpc_skb(skb);
@@ -292,11 +293,11 @@ static int rxkad_secure_packet(const struct rxrpc_call *call,
         sg_init_one(&sg[1], &tmpbuf, sizeof(tmpbuf));
         crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
 
-        x = ntohl(tmpbuf.x[1]);
-        x = (x >> 16) & 0xffff;
-        if (x == 0)
-                x = 1; /* zero checksums are not permitted */
-        sp->hdr.cksum = htons(x);
+        y = ntohl(tmpbuf.x[1]);
+        y = (y >> 16) & 0xffff;
+        if (y == 0)
+                y = 1; /* zero checksums are not permitted */
+        sp->hdr.cksum = htons(y);
 
         switch (call->conn->security_level) {
         case RXRPC_SECURITY_PLAIN:
@@ -314,7 +315,7 @@ static int rxkad_secure_packet(const struct rxrpc_call *call,
                 break;
         }
 
-        _leave(" = %d [set %hx]", ret, x);
+        _leave(" = %d [set %hx]", ret, y);
         return ret;
 }
 
@@ -492,6 +493,7 @@ static int rxkad_verify_packet(const struct rxrpc_call *call,
                 __be32 x[2];
         } tmpbuf __attribute__((aligned(8))); /* must all be in same page */
         __be32 x;
+        u16 y;
         __be16 cksum;
         int ret;
 
@@ -526,12 +528,12 @@ static int rxkad_verify_packet(const struct rxrpc_call *call,
         sg_init_one(&sg[1], &tmpbuf, sizeof(tmpbuf));
         crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
 
-        x = ntohl(tmpbuf.x[1]);
-        x = (x >> 16) & 0xffff;
-        if (x == 0)
-                x = 1; /* zero checksums are not permitted */
+        y = ntohl(tmpbuf.x[1]);
+        y = (y >> 16) & 0xffff;
+        if (y == 0)
+                y = 1; /* zero checksums are not permitted */
 
-        cksum = htons(x);
+        cksum = htons(y);
         if (sp->hdr.cksum != cksum) {
                 *_abort_code = RXKADSEALEDINCON;
                 _leave(" = -EPROTO [csum failed]");
@@ -1001,7 +1003,8 @@ static int rxkad_verify_response(struct rxrpc_connection *conn,
         struct rxrpc_crypt session_key;
         time_t expiry;
         void *ticket;
-        u32 abort_code, version, kvno, ticket_len, csum, level;
+        u32 abort_code, version, kvno, ticket_len, level;
+        __be32 csum;
         int ret;
 
         _enter("{%d,%x}", conn->debug_id, key_serial(conn->server_key));