Merge tag 'pull-shadow-2023-10-06' of https://repo.or.cz/qemu/armbru into staging

-Wshadow=local patches patches for 2023-10-06

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# gpg: Signature made Fri 06 Oct 2023 07:28:41 EDT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* tag 'pull-shadow-2023-10-06' of https://repo.or.cz/qemu/armbru: (32 commits)
  linux-user/syscall.c: clean up local variable shadowing in xattr syscalls
  linux-user/syscall.c: clean up local variable shadowing in TARGET_NR_getcpu
  linux-user/syscall.c: clean up local variable shadowing in do_ioctl_dm()
  linux-user/mmap.c: clean up local variable shadowing
  linux-user/flatload: clean up local variable shadowing
  hw/usb: Silence compiler warnings in USB code when compiling with -Wshadow
  target/ppc: Clean up local variable shadowing in kvm_arch_*_registers()
  trace/control: Clean up global variable shadowing
  sysemu/tpm: Clean up global variable shadowing
  softmmu/vl: Clean up global variable shadowing
  semihosting/arm-compat: Clean up local variable shadowing
  util/guest-random: Clean up global variable shadowing
  util/cutils: Clean up global variable shadowing in get_relocated_path()
  ui/cocoa: Clean up global variable shadowing
  semihosting: Clean up global variable shadowing
  qom/object_interfaces: Clean up global variable shadowing
  qemu-io: Clean up global variable shadowing
  qemu-img: Clean up global variable shadowing
  plugins/loader: Clean up global variable shadowing
  os-posix: Clean up global variable shadowing
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

15 files changed, 43 insertions, 48 deletions

diff --git a/hw/audio/soundhw.c b/hw/audio/soundhw.c
index 94d9463e42..b387b0ef7d 100644
--- a/hw/audio/soundhw.c
+++ b/hw/audio/soundhw.c
@@ -83,7 +83,7 @@ void show_valid_soundhw(void)
 static struct soundhw *selected = NULL;
 static const char *audiodev_id;
 
-void select_soundhw(const char *optarg, const char *audiodev)
+void select_soundhw(const char *name, const char *audiodev)
 {
     struct soundhw *c;
 
@@ -92,7 +92,7 @@ void select_soundhw(const char *optarg, const char *audiodev)
     }
 
     for (c = soundhw; c->name; ++c) {
-        if (g_str_equal(c->name, optarg)) {
+        if (g_str_equal(c->name, name)) {
             selected = c;
             audiodev_id = audiodev;
             break;
@@ -100,7 +100,7 @@ void select_soundhw(const char *optarg, const char *audiodev)
     }
 
     if (!c->name) {
-        error_report("Unknown sound card name `%s'", optarg);
+        error_report("Unknown sound card name `%s'", name);
         show_valid_soundhw();
         exit(1);
     }
diff --git a/hw/cxl/cxl-device-utils.c b/hw/cxl/cxl-device-utils.c
index 517f06d869..bd68328032 100644
--- a/hw/cxl/cxl-device-utils.c
+++ b/hw/cxl/cxl-device-utils.c
@@ -283,13 +283,13 @@ static void memdev_reg_init_common(CXLDeviceState *cxl_dstate) { }
 
 void cxl_device_register_init_common(CXLDeviceState *cxl_dstate)
 {
-    uint64_t *cap_hdrs = cxl_dstate->caps_reg_state64;
+    uint64_t *cap_h = cxl_dstate->caps_reg_state64;
     const int cap_count = 3;
 
     /* CXL Device Capabilities Array Register */
-    ARRAY_FIELD_DP64(cap_hdrs, CXL_DEV_CAP_ARRAY, CAP_ID, 0);
-    ARRAY_FIELD_DP64(cap_hdrs, CXL_DEV_CAP_ARRAY, CAP_VERSION, 1);
-    ARRAY_FIELD_DP64(cap_hdrs, CXL_DEV_CAP_ARRAY, CAP_COUNT, cap_count);
+    ARRAY_FIELD_DP64(cap_h, CXL_DEV_CAP_ARRAY, CAP_ID, 0);
+    ARRAY_FIELD_DP64(cap_h, CXL_DEV_CAP_ARRAY, CAP_VERSION, 1);
+    ARRAY_FIELD_DP64(cap_h, CXL_DEV_CAP_ARRAY, CAP_COUNT, cap_count);
 
     cxl_device_cap_init(cxl_dstate, DEVICE_STATUS, 1, 2);
     device_reg_init_common(cxl_dstate);
diff --git a/hw/i386/acpi-microvm.c b/hw/i386/acpi-microvm.c
index fec22d85c1..2909a73933 100644
--- a/hw/i386/acpi-microvm.c
+++ b/hw/i386/acpi-microvm.c
@@ -55,8 +55,8 @@ static void acpi_dsdt_add_virtio(Aml *scope,
 
     bus = sysbus_get_default();
     QTAILQ_FOREACH(kid, &bus->children, sibling) {
-        DeviceState *dev = kid->child;
-        Object *obj = object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MMIO);
+        Object *obj = object_dynamic_cast(OBJECT(kid->child),
+                                          TYPE_VIRTIO_MMIO);
 
         if (obj) {
             VirtIOMMIOProxy *mmio = VIRTIO_MMIO(obj);
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index aad7e8ccd1..bb3854d1d0 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1049,7 +1049,6 @@ void pc_memory_init(PCMachineState *pcms,
 
     if (machine->device_memory) {
         uint64_t *val = g_malloc(sizeof(*val));
-        PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
         uint64_t res_mem_end = machine->device_memory->base;
 
         if (!pcmc->broken_reserved_end) {
diff --git a/hw/i386/x86.c b/hw/i386/x86.c
index f034df8bf6..b3d054889b 100644
--- a/hw/i386/x86.c
+++ b/hw/i386/x86.c
@@ -365,8 +365,6 @@ void x86_cpu_pre_plug(HotplugHandler *hotplug_dev,
 
     cpu_slot = x86_find_cpu_slot(MACHINE(x86ms), cpu->apic_id, &idx);
     if (!cpu_slot) {
-        MachineState *ms = MACHINE(x86ms);
-
         x86_topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids);
         error_setg(errp,
             "Invalid CPU [socket: %u, die: %u, core: %u, thread: %u] with"
diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index d0a774bc17..fcc5476e9e 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -1622,9 +1622,7 @@ void ahci_uninit(AHCIState *s)
         AHCIDevice *ad = &s->dev[i];
 
         for (j = 0; j < 2; j++) {
-            IDEState *s = &ad->port.ifs[j];
-
-            ide_exit(s);
+            ide_exit(&ad->port.ifs[j]);
         }
         object_unparent(OBJECT(&ad->port));
     }
diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c
index 2629128aed..b0a004f860 100644
--- a/hw/loongarch/virt.c
+++ b/hw/loongarch/virt.c
@@ -662,7 +662,7 @@ static void loongarch_irq_init(LoongArchMachineState *lams)
                             sysbus_mmio_get_region(d, 2));
 
     /* Connect pch_pic irqs to extioi */
-    for (int i = 0; i < num; i++) {
+    for (i = 0; i < num; i++) {
         qdev_connect_gpio_out(DEVICE(d), i, qdev_get_gpio_in(extioi, i));
     }
 
diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
index 57427a3997..e8e1661646 100644
--- a/hw/net/vhost_net.c
+++ b/hw/net/vhost_net.c
@@ -313,8 +313,8 @@ fail:
                 /* Queue might not be ready for start */
                 continue;
             }
-            int r = vhost_net_set_backend(&net->dev, &file);
-            assert(r >= 0);
+            int ret = vhost_net_set_backend(&net->dev, &file);
+            assert(ret >= 0);
         }
     }
     if (net->nc->info->poll) {
@@ -629,8 +629,8 @@ err_start:
     if (net->nc->info->type == NET_CLIENT_DRIVER_TAP) {
         file.fd = VHOST_FILE_UNBIND;
         file.index = idx;
-        int r = vhost_net_set_backend(&net->dev, &file);
-        assert(r >= 0);
+        int ret = vhost_net_set_backend(&net->dev, &file);
+        assert(ret >= 0);
     }
 
     vhost_dev_stop(&net->dev, vdev, false);
diff --git a/hw/usb/desc.c b/hw/usb/desc.c
index 7f6cc2f99b..f2bdc05a95 100644
--- a/hw/usb/desc.c
+++ b/hw/usb/desc.c
@@ -227,7 +227,7 @@ int usb_desc_endpoint(const USBDescEndpoint *ep, int flags,
     }
 
     if (superlen) {
-        USBDescriptor *d = (void *)(dest + bLength);
+        d = (void *)(dest + bLength);
 
         d->bLength                       = 0x06;
         d->bDescriptorType               = USB_DT_ENDPOINT_COMPANION;
diff --git a/hw/usb/dev-hub.c b/hw/usb/dev-hub.c
index a6b50dbc8d..5703e0e826 100644
--- a/hw/usb/dev-hub.c
+++ b/hw/usb/dev-hub.c
@@ -402,7 +402,7 @@ static void usb_hub_handle_control(USBDevice *dev, USBPacket *p,
         {
             unsigned int n = index - 1;
             USBHubPort *port;
-            USBDevice *dev;
+            USBDevice *pdev;
 
             trace_usb_hub_set_port_feature(s->dev.addr, index,
                                            feature_name(value));
@@ -411,7 +411,7 @@ static void usb_hub_handle_control(USBDevice *dev, USBPacket *p,
                 goto fail;
             }
             port = &s->ports[n];
-            dev = port->port.dev;
+            pdev = port->port.dev;
             switch(value) {
             case PORT_SUSPEND:
                 port->wPortStatus |= PORT_STAT_SUSPEND;
@@ -419,8 +419,8 @@ static void usb_hub_handle_control(USBDevice *dev, USBPacket *p,
             case PORT_RESET:
                 usb_hub_port_set(port, PORT_STAT_RESET);
                 usb_hub_port_clear(port, PORT_STAT_RESET);
-                if (dev && dev->attached) {
-                    usb_device_reset(dev);
+                if (pdev && pdev->attached) {
+                    usb_device_reset(pdev);
                     usb_hub_port_set(port, PORT_STAT_ENABLE);
                 }
                 usb_wakeup(s->intr, 0);
diff --git a/hw/usb/dev-storage.c b/hw/usb/dev-storage.c
index e3bcffb3e0..a496c811a7 100644
--- a/hw/usb/dev-storage.c
+++ b/hw/usb/dev-storage.c
@@ -403,7 +403,7 @@ static void usb_msd_handle_data(USBDevice *dev, USBPacket *p)
     struct usb_msd_cbw cbw;
     uint8_t devep = p->ep->nr;
     SCSIDevice *scsi_dev;
-    uint32_t len;
+    int len;
 
     if (s->needs_reset) {
         p->status = USB_RET_STALL;
@@ -465,7 +465,7 @@ static void usb_msd_handle_data(USBDevice *dev, USBPacket *p)
                 usb_msd_copy_data(s, p);
             }
             if (le32_to_cpu(s->csw.residue)) {
-                int len = p->iov.size - p->actual_length;
+                len = p->iov.size - p->actual_length;
                 if (len) {
                     usb_packet_skip(p, len);
                     if (len > s->data_len) {
@@ -526,7 +526,7 @@ static void usb_msd_handle_data(USBDevice *dev, USBPacket *p)
                 usb_msd_copy_data(s, p);
             }
             if (le32_to_cpu(s->csw.residue)) {
-                int len = p->iov.size - p->actual_length;
+                len = p->iov.size - p->actual_length;
                 if (len) {
                     usb_packet_skip(p, len);
                     if (len > s->data_len) {
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 324177ad5d..4b60114207 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -217,10 +217,10 @@ enum {
     (((data) >> field##_SHIFT) & field##_MASK)
 
 #define set_field(data, newval, field) do {                     \
-        uint32_t val = *data;                                   \
-        val &= ~(field##_MASK << field##_SHIFT);                \
-        val |= ((newval) & field##_MASK) << field##_SHIFT;      \
-        *data = val;                                            \
+        uint32_t val_ = *data;                                  \
+        val_ &= ~(field##_MASK << field##_SHIFT);               \
+        val_ |= ((newval) & field##_MASK) << field##_SHIFT;     \
+        *data = val_;                                           \
     } while (0)
 
 typedef enum EPType {
@@ -1894,7 +1894,7 @@ static void xhci_kick_epctx(XHCIEPContext *epctx, unsigned int streamid)
     }
 
     if (epctx->retry) {
-        XHCITransfer *xfer = epctx->retry;
+        xfer = epctx->retry;
 
         trace_usb_xhci_xfer_retry(xfer);
         assert(xfer->running_retry);
diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
index f500db85ab..d7060a42d5 100644
--- a/hw/usb/host-libusb.c
+++ b/hw/usb/host-libusb.c
@@ -1010,7 +1010,7 @@ static int usb_host_open(USBHostDevice *s, libusb_device *dev, int hostfd)
          * Speeds are defined in linux/usb/ch9.h, file not included
          * due to name conflicts.
          */
-        int rc = ioctl(hostfd, USBDEVFS_GET_SPEED, NULL);
+        rc = ioctl(hostfd, USBDEVFS_GET_SPEED, NULL);
         switch (rc) {
         case 1: /* low */
             libusb_speed = LIBUSB_SPEED_LOW;
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index e2f6ffb446..9cfac40fde 100644
--- a/hw/virtio/vhost.c
+++ b/hw/virtio/vhost.c
@@ -66,12 +66,12 @@ static void vhost_dev_sync_region(struct vhost_dev *dev,
                                   uint64_t mfirst, uint64_t mlast,
                                   uint64_t rfirst, uint64_t rlast)
 {
-    vhost_log_chunk_t *log = dev->log->log;
+    vhost_log_chunk_t *dev_log = dev->log->log;
 
     uint64_t start = MAX(mfirst, rfirst);
     uint64_t end = MIN(mlast, rlast);
-    vhost_log_chunk_t *from = log + start / VHOST_LOG_CHUNK;
-    vhost_log_chunk_t *to = log + end / VHOST_LOG_CHUNK + 1;
+    vhost_log_chunk_t *from = dev_log + start / VHOST_LOG_CHUNK;
+    vhost_log_chunk_t *to = dev_log + end / VHOST_LOG_CHUNK + 1;
     uint64_t addr = QEMU_ALIGN_DOWN(start, VHOST_LOG_CHUNK);
 
     if (end < start) {
@@ -549,7 +549,7 @@ static void vhost_commit(MemoryListener *listener)
         changed = true;
     } else {
         /* Same size, lets check the contents */
-        for (int i = 0; i < n_old_sections; i++) {
+        for (i = 0; i < n_old_sections; i++) {
             if (!MemoryRegionSection_eq(&old_sections[i],
                                         &dev->mem_sections[i])) {
                 changed = true;
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index edbc0daa18..abebd0075a 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -780,15 +780,15 @@ static void virtio_write_config(PCIDevice *pci_dev, uint32_t address,
                                                                   pci_cfg_data),
                        sizeof cfg->pci_cfg_data)) {
         uint32_t off;
-        uint32_t len;
+        uint32_t caplen;
 
         cfg = (void *)(proxy->pci_dev.config + proxy->config_cap);
         off = le32_to_cpu(cfg->cap.offset);
-        len = le32_to_cpu(cfg->cap.length);
+        caplen = le32_to_cpu(cfg->cap.length);
 
-        if (len == 1 || len == 2 || len == 4) {
-            assert(len <= sizeof cfg->pci_cfg_data);
-            virtio_address_space_write(proxy, off, cfg->pci_cfg_data, len);
+        if (caplen == 1 || caplen == 2 || caplen == 4) {
+            assert(caplen <= sizeof cfg->pci_cfg_data);
+            virtio_address_space_write(proxy, off, cfg->pci_cfg_data, caplen);
         }
     }
 }
@@ -804,15 +804,15 @@ static uint32_t virtio_read_config(PCIDevice *pci_dev,
                                                                   pci_cfg_data),
                        sizeof cfg->pci_cfg_data)) {
         uint32_t off;
-        uint32_t len;
+        uint32_t caplen;
 
         cfg = (void *)(proxy->pci_dev.config + proxy->config_cap);
         off = le32_to_cpu(cfg->cap.offset);
-        len = le32_to_cpu(cfg->cap.length);
+        caplen = le32_to_cpu(cfg->cap.length);
 
-        if (len == 1 || len == 2 || len == 4) {
-            assert(len <= sizeof cfg->pci_cfg_data);
-            virtio_address_space_read(proxy, off, cfg->pci_cfg_data, len);
+        if (caplen == 1 || caplen == 2 || caplen == 4) {
+            assert(caplen <= sizeof cfg->pci_cfg_data);
+            virtio_address_space_read(proxy, off, cfg->pci_cfg_data, caplen);
         }
     }