diff --git a/block/nbd.c b/block/nbd.c
index fab114bbb5..30e3b78e17 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -609,7 +609,7 @@ static int nbd_co_discard(BlockDriverState *bs, int64_t sector_num,
         return 0;
     }
     request.type = NBD_CMD_TRIM;
-    request.from = sector_num * 512;;
+    request.from = sector_num * 512;
     request.len = nb_sectors * 512;
 
     nbd_coroutine_start(s, &request);
diff --git a/bsd-user/syscall.c b/bsd-user/syscall.c
index 69e3466a08..a4d1583fed 100644
--- a/bsd-user/syscall.c
+++ b/bsd-user/syscall.c
@@ -211,10 +211,11 @@ static int sysctl_oldcvt(void *holdp, size_t holdlen, uint32_t kind)
         *(uint64_t *)holdp = tswap64(*(unsigned long *)holdp);
         break;
 #endif
-#if !defined(__FreeBSD_version) || __FreeBSD_version < 900031
-    case CTLTYPE_QUAD:
-#else
+#ifdef CTLTYPE_U64
+    case CTLTYPE_S64:
     case CTLTYPE_U64:
+#else
+    case CTLTYPE_QUAD:
 #endif
         *(uint64_t *)holdp = tswap64(*(uint64_t *)holdp);
         break;
diff --git a/docs/memory.txt b/docs/memory.txt
index 5bbee8e85d..feb9fe90d7 100644
--- a/docs/memory.txt
+++ b/docs/memory.txt
@@ -15,10 +15,13 @@ The memory model provides support for
  - setting up coalesced memory for kvm
  - setting up ioeventfd regions for kvm
 
-Memory is modelled as a tree (really acyclic graph) of MemoryRegion objects.
-The root of the tree is memory as seen from the CPU's viewpoint (the system
-bus).  Nodes in the tree represent other buses, memory controllers, and
-memory regions that have been rerouted.  Leaves are RAM and MMIO regions.
+Memory is modelled as an acyclic graph of MemoryRegion objects.  Sinks
+(leaves) are RAM and MMIO regions, while other nodes represent
+buses, memory controllers, and memory regions that have been rerouted.
+
+In addition to MemoryRegion objects, the memory API provides AddressSpace
+objects for every root and possibly for intermediate MemoryRegions too.
+These represent memory as seen from the CPU or a device's viewpoint.
 
 Types of regions
 ----------------
diff --git a/fsdev/virtfs-proxy-helper.c b/fsdev/virtfs-proxy-helper.c
index 36f66163b2..713a7b2b87 100644
--- a/fsdev/virtfs-proxy-helper.c
+++ b/fsdev/virtfs-proxy-helper.c
@@ -248,7 +248,7 @@ static int send_fd(int sockfd, int fd)
 static int send_status(int sockfd, struct iovec *iovec, int status)
 {
     ProxyHeader header;
-    int retval, msg_size;;
+    int retval, msg_size;
 
     if (status < 0) {
         header.type = T_ERROR;
@@ -381,7 +381,7 @@ static int send_response(int sock, struct iovec *iovec, int size)
     proxy_marshal(iovec, 0, "dd", header.type, header.size);
     retval = socket_write(sock, iovec->iov_base, header.size + PROXY_HDR_SZ);
     if (retval < 0) {
-        return retval;;
+        return retval;
     }
     return 0;
 }
diff --git a/hw/9pfs/virtio-9p-local.c b/hw/9pfs/virtio-9p-local.c
index be898eccd9..6ece6f7d1c 100644
--- a/hw/9pfs/virtio-9p-local.c
+++ b/hw/9pfs/virtio-9p-local.c
@@ -878,7 +878,7 @@ static int local_remove(FsContext *ctx, const char *path)
          * Now remove the name from parent directory
          * .virtfs_metadata directory
          */
-        err = remove(local_mapped_attr_path(ctx, path, buffer));;
+        err = remove(local_mapped_attr_path(ctx, path, buffer));
         if (err < 0 && errno != ENOENT) {
             /*
              * We didn't had the .virtfs_metadata file. May be file created
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index b3ca19ae52..759c84d140 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -91,18 +91,27 @@ static const FlashPartInfo known_devices[] = {
     { INFO("at26df161a",  0x1f4601,      0,  64 << 10,  32, ER_4K) },
     { INFO("at26df321",   0x1f4700,      0,  64 << 10,  64, ER_4K) },
 
+    { INFO("at45db081d",  0x1f2500,      0,  64 << 10,  16, ER_4K) },
+
     /* EON -- en25xxx */
     { INFO("en25f32",     0x1c3116,      0,  64 << 10,  64, ER_4K) },
     { INFO("en25p32",     0x1c2016,      0,  64 << 10,  64, 0) },
     { INFO("en25q32b",    0x1c3016,      0,  64 << 10,  64, 0) },
     { INFO("en25p64",     0x1c2017,      0,  64 << 10, 128, 0) },
+    { INFO("en25q64",     0x1c3017,      0,  64 << 10, 128, ER_4K) },
+
+    /* GigaDevice */
+    { INFO("gd25q32",     0xc84016,      0,  64 << 10,  64, ER_4K) },
+    { INFO("gd25q64",     0xc84017,      0,  64 << 10, 128, ER_4K) },
 
     /* Intel/Numonyx -- xxxs33b */
     { INFO("160s33b",     0x898911,      0,  64 << 10,  32, 0) },
     { INFO("320s33b",     0x898912,      0,  64 << 10,  64, 0) },
     { INFO("640s33b",     0x898913,      0,  64 << 10, 128, 0) },
+    { INFO("n25q064",     0x20ba17,      0,  64 << 10, 128, 0) },
 
     /* Macronix */
+    { INFO("mx25l2005a",  0xc22012,      0,  64 << 10,   4, ER_4K) },
     { INFO("mx25l4005a",  0xc22013,      0,  64 << 10,   8, ER_4K) },
     { INFO("mx25l8005",   0xc22014,      0,  64 << 10,  16, 0) },
     { INFO("mx25l1606e",  0xc22015,      0,  64 << 10,  32, ER_4K) },
@@ -113,15 +122,16 @@ static const FlashPartInfo known_devices[] = {
     { INFO("mx25l25635e", 0xc22019,      0,  64 << 10, 512, 0) },
     { INFO("mx25l25655e", 0xc22619,      0,  64 << 10, 512, 0) },
 
+    /* Micron */
+    { INFO("n25q128a11",  0x20bb18,      0,  64 << 10, 256, 0) },
+    { INFO("n25q128a13",  0x20ba18,      0,  64 << 10, 256, 0) },
+    { INFO("n25q256a",    0x20ba19,      0,  64 << 10, 512, ER_4K) },
+
     /* Spansion -- single (large) sector size only, at least
      * for the chips listed here (without boot sectors).
      */
-    { INFO("s25sl004a",   0x010212,      0,  64 << 10,   8, 0) },
-    { INFO("s25sl008a",   0x010213,      0,  64 << 10,  16, 0) },
-    { INFO("s25sl016a",   0x010214,      0,  64 << 10,  32, 0) },
-    { INFO("s25sl032a",   0x010215,      0,  64 << 10,  64, 0) },
     { INFO("s25sl032p",   0x010215, 0x4d00,  64 << 10,  64, ER_4K) },
-    { INFO("s25sl064a",   0x010216,      0,  64 << 10, 128, 0) },
+    { INFO("s25sl064p",   0x010216, 0x4d00,  64 << 10, 128, ER_4K) },
     { INFO("s25fl256s0",  0x010219, 0x4d00, 256 << 10, 128, 0) },
     { INFO("s25fl256s1",  0x010219, 0x4d01,  64 << 10, 512, 0) },
     { INFO("s25fl512s",   0x010220, 0x4d00, 256 << 10, 256, 0) },
@@ -130,6 +140,11 @@ static const FlashPartInfo known_devices[] = {
     { INFO("s25sl12801",  0x012018, 0x0301,  64 << 10, 256, 0) },
     { INFO("s25fl129p0",  0x012018, 0x4d00, 256 << 10,  64, 0) },
     { INFO("s25fl129p1",  0x012018, 0x4d01,  64 << 10, 256, 0) },
+    { INFO("s25sl004a",   0x010212,      0,  64 << 10,   8, 0) },
+    { INFO("s25sl008a",   0x010213,      0,  64 << 10,  16, 0) },
+    { INFO("s25sl016a",   0x010214,      0,  64 << 10,  32, 0) },
+    { INFO("s25sl032a",   0x010215,      0,  64 << 10,  64, 0) },
+    { INFO("s25sl064a",   0x010216,      0,  64 << 10, 128, 0) },
     { INFO("s25fl016k",   0xef4015,      0,  64 << 10,  32, ER_4K | ER_32K) },
     { INFO("s25fl064k",   0xef4017,      0,  64 << 10, 128, ER_4K | ER_32K) },
 
@@ -153,11 +168,13 @@ static const FlashPartInfo known_devices[] = {
     { INFO("m25p32",      0x202016,      0,  64 << 10,  64, 0) },
     { INFO("m25p64",      0x202017,      0,  64 << 10, 128, 0) },
     { INFO("m25p128",     0x202018,      0, 256 << 10,  64, 0) },
+    { INFO("n25q032",     0x20ba16,      0,  64 << 10,  64, 0) },
 
     { INFO("m45pe10",     0x204011,      0,  64 << 10,   2, 0) },
     { INFO("m45pe80",     0x204014,      0,  64 << 10,  16, 0) },
     { INFO("m45pe16",     0x204015,      0,  64 << 10,  32, 0) },
 
+    { INFO("m25pe20",     0x208012,      0,  64 << 10,   4, 0) },
     { INFO("m25pe80",     0x208014,      0,  64 << 10,  16, 0) },
     { INFO("m25pe16",     0x208015,      0,  64 << 10,  32, ER_4K) },
 
@@ -174,8 +191,12 @@ static const FlashPartInfo known_devices[] = {
     { INFO("w25x16",      0xef3015,      0,  64 << 10,  32, ER_4K) },
     { INFO("w25x32",      0xef3016,      0,  64 << 10,  64, ER_4K) },
     { INFO("w25q32",      0xef4016,      0,  64 << 10,  64, ER_4K) },
+    { INFO("w25q32dw",    0xef6016,      0,  64 << 10,  64, ER_4K) },
     { INFO("w25x64",      0xef3017,      0,  64 << 10, 128, ER_4K) },
     { INFO("w25q64",      0xef4017,      0,  64 << 10, 128, ER_4K) },
+    { INFO("w25q80",      0xef5014,      0,  64 << 10,  16, ER_4K) },
+    { INFO("w25q80bl",    0xef4014,      0,  64 << 10,  16, ER_4K) },
+    { INFO("w25q256",     0xef4019,      0,  64 << 10, 512, ER_4K) },
 
     /* Numonyx -- n25q128 */
     { INFO("n25q128",      0x20ba18,      0,  64 << 10, 256, 0) },
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 4160e2ba37..68253807c1 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -128,7 +128,7 @@ static void pc_q35_init(QEMUMachineInitArgs *args)
     q35_host->mch.ram_memory = ram_memory;
     q35_host->mch.pci_address_space = pci_memory;
     q35_host->mch.system_memory = get_system_memory();
-    q35_host->mch.address_space_io = get_system_io();;
+    q35_host->mch.address_space_io = get_system_io();
     q35_host->mch.below_4g_mem_size = below_4g_mem_size;
     q35_host->mch.above_4g_mem_size = above_4g_mem_size;
     /* pci */
diff --git a/hw/intc/imx_avic.c b/hw/intc/imx_avic.c
index 4e280b6ab9..ff45dcdc0d 100644
--- a/hw/intc/imx_avic.c
+++ b/hw/intc/imx_avic.c
@@ -370,7 +370,7 @@ static void imx_avic_reset(DeviceState *dev)
 
 static int imx_avic_init(SysBusDevice *dev)
 {
-    IMXAVICState *s = FROM_SYSBUS(IMXAVICState, dev);;
+    IMXAVICState *s = FROM_SYSBUS(IMXAVICState, dev);
 
     memory_region_init_io(&s->iomem, &imx_avic_ops, s, "imx_avic", 0x1000);
     sysbus_init_mmio(dev, &s->iomem);
diff --git a/hw/usb/host-linux.c b/hw/usb/host-linux.c
index 8994668dcd..ca09a891ee 100644
--- a/hw/usb/host-linux.c
+++ b/hw/usb/host-linux.c
@@ -651,7 +651,7 @@ static void usb_host_handle_reset(USBDevice *dev)
 
     trace_usb_host_reset(s->bus_num, s->addr);
 
-    usb_host_do_reset(s);;
+    usb_host_do_reset(s);
 
     usb_host_claim_interfaces(s, 0);
     usb_linux_update_endp_table(s);
@@ -1429,7 +1429,7 @@ static void usb_host_exit_notifier(struct Notifier *n, void *data)
 
     usb_host_release_port(s);
     if (s->fd != -1) {
-        usb_host_do_reset(s);;
+        usb_host_do_reset(s);
     }
 }
 
diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index 42545bcbdb..3bcd4ab7cd 100644
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -5,8 +5,8 @@
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdbool.h>
-#ifdef __OpenBSD__
 #include <sys/types.h>
+#ifdef __OpenBSD__
 #include <sys/signal.h>
 #endif
 
diff --git a/qemu-doc.texi b/qemu-doc.texi
index 64493ebfce..5fc0eae400 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -214,10 +214,6 @@ PCI UHCI USB controller and a virtual USB hub.
 
 SMP is supported with up to 255 CPUs.
 
-Note that adlib, gus and cs4231a are only available when QEMU was
-configured with --audio-card-list option containing the name(s) of
-required card(s).
-
 QEMU uses the PC BIOS from the Bochs project and the Plex86/Bochs LGPL
 VGA BIOS.
 
diff --git a/qga/channel-win32.c b/qga/channel-win32.c
index 7ed98d72fb..8a303f35ec 100644
--- a/qga/channel-win32.c
+++ b/qga/channel-win32.c
@@ -268,7 +268,7 @@ static GIOStatus ga_channel_write(GAChannel *c, const char *buf, size_t size,
 
 GIOStatus ga_channel_write_all(GAChannel *c, const char *buf, size_t size)
 {
-    GIOStatus status = G_IO_STATUS_NORMAL;;
+    GIOStatus status = G_IO_STATUS_NORMAL;
     size_t count;
 
     while (size) {
diff --git a/util/uri.c b/util/uri.c
index 4238729b83..e348c1768c 100644
--- a/util/uri.c
+++ b/util/uri.c
@@ -2162,7 +2162,7 @@ query_params_append (struct QueryParams *ps,
     }
 
     ps->p[ps->n].name = g_strdup(name);
-    ps->p[ps->n].value = value ? g_strdup(value) : NULL;
+    ps->p[ps->n].value = g_strdup(value);
     ps->p[ps->n].ignore = 0;
     ps->n++;
 
diff --git a/vl.c b/vl.c
index 6e6225f09b..be0a93c53d 100644
--- a/vl.c
+++ b/vl.c
@@ -1215,7 +1215,7 @@ void add_boot_device_path(int32_t bootindex, DeviceState *dev,
 
     node = g_malloc0(sizeof(FWBootEntry));
     node->bootindex = bootindex;
-    node->suffix = suffix ? g_strdup(suffix) : NULL;
+    node->suffix = g_strdup(suffix);
     node->dev = dev;
 
     QTAILQ_FOREACH(i, &fw_boot_order, link) {