From patchwork Thu Aug 16 13:54:30 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kiszka X-Patchwork-Id: 1332171 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id B601340211 for ; Thu, 16 Aug 2012 13:55:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932482Ab2HPNyx (ORCPT ); Thu, 16 Aug 2012 09:54:53 -0400 Received: from thoth.sbs.de ([192.35.17.2]:30249 "EHLO thoth.sbs.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932331Ab2HPNyv (ORCPT ); Thu, 16 Aug 2012 09:54:51 -0400 Received: from mail1.siemens.de (localhost [127.0.0.1]) by thoth.sbs.de (8.13.6/8.13.6) with ESMTP id q7GDsZwE008161; Thu, 16 Aug 2012 15:54:35 +0200 Received: from mchn199C.mchp.siemens.de ([139.25.109.49]) by mail1.siemens.de (8.13.6/8.13.6) with ESMTP id q7GDsYJQ012893; Thu, 16 Aug 2012 15:54:35 +0200 From: Jan Kiszka To: Avi Kivity , Marcelo Tosatti Cc: kvm@vger.kernel.org, Alex Williamson Subject: [PATCH 16/19] pci-assign: Fix coding style issues Date: Thu, 16 Aug 2012 15:54:30 +0200 Message-Id: X-Mailer: git-send-email 1.7.3.4 In-Reply-To: References: In-Reply-To: References: Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org No functional changes. Signed-off-by: Jan Kiszka --- hw/kvm/pci-assign.c | 181 +++++++++++++++++++++++++++++--------------------- 1 files changed, 105 insertions(+), 76 deletions(-) diff --git a/hw/kvm/pci-assign.c b/hw/kvm/pci-assign.c index 3611539..cfd859e 100644 --- a/hw/kvm/pci-assign.c +++ b/hw/kvm/pci-assign.c @@ -57,10 +57,10 @@ #ifdef DEVICE_ASSIGNMENT_DEBUG #define DEBUG(fmt, ...) \ do { \ - fprintf(stderr, "%s: " fmt, __func__ , __VA_ARGS__); \ + fprintf(stderr, "%s: " fmt, __func__ , __VA_ARGS__); \ } while (0) #else -#define DEBUG(fmt, ...) do { } while(0) +#define DEBUG(fmt, ...) #endif typedef struct { @@ -186,27 +186,27 @@ static uint64_t assigned_dev_ioport_rw(AssignedDevRegion *dev_region, DEBUG("out data=%lx, size=%d, e_phys=%lx, host=%x\n", *data, size, addr, port); switch (size) { - case 1: - outb(*data, port); - break; - case 2: - outw(*data, port); - break; - case 4: - outl(*data, port); - break; + case 1: + outb(*data, port); + break; + case 2: + outw(*data, port); + break; + case 4: + outl(*data, port); + break; } } else { switch (size) { - case 1: - val = inb(port); - break; - case 2: - val = inw(port); - break; - case 4: - val = inl(port); - break; + case 1: + val = inb(port); + break; + case 2: + val = inw(port); + break; + case 4: + val = inl(port); + break; } DEBUG("in data=%lx, size=%d, e_phys=%lx, host=%x\n", val, size, addr, port); @@ -354,13 +354,14 @@ static uint32_t assigned_dev_pci_read(PCIDevice *d, int pos, int len) again: ret = pread(fd, &val, len, pos); if (ret != len) { - if ((ret < 0) && (errno == EINTR || errno == EAGAIN)) - goto again; + if ((ret < 0) && (errno == EINTR || errno == EAGAIN)) { + goto again; + } - fprintf(stderr, "%s: pread failed, ret = %zd errno = %d\n", - __func__, ret, errno); + fprintf(stderr, "%s: pread failed, ret = %zd errno = %d\n", + __func__, ret, errno); - exit(1); + exit(1); } return val; @@ -380,16 +381,15 @@ static void assigned_dev_pci_write(PCIDevice *d, int pos, uint32_t val, int len) again: ret = pwrite(fd, &val, len, pos); if (ret != len) { - if ((ret < 0) && (errno == EINTR || errno == EAGAIN)) - goto again; + if ((ret < 0) && (errno == EINTR || errno == EAGAIN)) { + goto again; + } - fprintf(stderr, "%s: pwrite failed, ret = %zd errno = %d\n", - __func__, ret, errno); + fprintf(stderr, "%s: pwrite failed, ret = %zd errno = %d\n", + __func__, ret, errno); - exit(1); + exit(1); } - - return; } static void assigned_dev_emulate_config_read(AssignedDevice *dev, @@ -418,21 +418,25 @@ static uint8_t pci_find_cap_offset(PCIDevice *d, uint8_t cap, uint8_t start) int status; status = assigned_dev_pci_read_byte(d, PCI_STATUS); - if ((status & PCI_STATUS_CAP_LIST) == 0) + if ((status & PCI_STATUS_CAP_LIST) == 0) { return 0; + } while (max_cap--) { pos = assigned_dev_pci_read_byte(d, pos); - if (pos < 0x40) + if (pos < 0x40) { break; + } pos &= ~3; id = assigned_dev_pci_read_byte(d, pos + PCI_CAP_LIST_ID); - if (id == 0xff) + if (id == 0xff) { break; - if (id == cap) + } + if (id == cap) { return pos; + } pos += PCI_CAP_LIST_NEXT; } @@ -447,8 +451,9 @@ static int assigned_dev_register_regions(PCIRegion *io_regions, PCIRegion *cur_region = io_regions; for (i = 0; i < regions_num; i++, cur_region++) { - if (!cur_region->valid) + if (!cur_region->valid) { continue; + } /* handle memory io regions */ if (cur_region->type & IORESOURCE_MEM) { @@ -587,7 +592,7 @@ static int get_real_device(AssignedDevice *pci_dev, uint16_t r_seg, dev->region_number = 0; snprintf(dir, sizeof(dir), "/sys/bus/pci/devices/%04x:%02x:%02x.%x/", - r_seg, r_bus, r_dev, r_func); + r_seg, r_bus, r_dev, r_func); snprintf(name, sizeof(name), "%sconfig", dir); @@ -614,8 +619,9 @@ again: r = read(dev->config_fd, pci_dev->dev.config, pci_config_size(&pci_dev->dev)); if (r < 0) { - if (errno == EINTR || errno == EAGAIN) + if (errno == EINTR || errno == EAGAIN) { goto again; + } fprintf(stderr, "%s: read failed, errno = %d\n", __func__, errno); } @@ -641,16 +647,18 @@ again: } for (r = 0; r < PCI_ROM_SLOT; r++) { - if (fscanf(f, "%lli %lli %lli\n", &start, &end, &flags) != 3) - break; + if (fscanf(f, "%lli %lli %lli\n", &start, &end, &flags) != 3) { + break; + } rp = dev->regions + r; rp->valid = 0; rp->resource_fd = -1; size = end - start + 1; flags &= IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH; - if (size == 0 || (flags & ~IORESOURCE_PREFETCH) == 0) + if (size == 0 || (flags & ~IORESOURCE_PREFETCH) == 0) { continue; + } if (flags & IORESOURCE_MEM) { flags &= ~IORESOURCE_IO; } else { @@ -658,8 +666,9 @@ again: } snprintf(name, sizeof(name), "%sresource%d", dir, r); fd = open(name, O_RDWR); - if (fd == -1) + if (fd == -1) { continue; + } rp->resource_fd = fd; rp->type = flags; @@ -782,7 +791,12 @@ static void assign_failed_examine(AssignedDevice *dev) sprintf(name, "%sdriver", dir); r = readlink(name, driver, sizeof(driver)); - if ((r <= 0) || r >= sizeof(driver) || !(ns = strrchr(driver, '/'))) { + if ((r <= 0) || r >= sizeof(driver)) { + goto fail; + } + + ns = strrchr(driver, '/'); + if (!ns) { goto fail; } @@ -850,11 +864,11 @@ static int assign_device(AssignedDevice *dev) dev->dev.qdev.id, strerror(-r)); switch (r) { - case -EBUSY: - assign_failed_examine(dev); - break; - default: - break; + case -EBUSY: + assign_failed_examine(dev); + break; + default: + break; } } return r; @@ -951,9 +965,10 @@ static void deassign_device(AssignedDevice *dev) int r; r = kvm_device_pci_deassign(kvm_state, dev->dev_id); - if (r < 0) - fprintf(stderr, "Failed to deassign device \"%s\" : %s\n", + if (r < 0) { + fprintf(stderr, "Failed to deassign device \"%s\" : %s\n", dev->dev.qdev.id, strerror(-r)); + } } /* The pci config space got updated. Check if irq numbers have changed @@ -986,8 +1001,9 @@ static void assigned_dev_update_msi(PCIDevice *pci_dev) (ctrl_byte & PCI_MSI_FLAGS_ENABLE)) { r = kvm_device_msi_deassign(kvm_state, assigned_dev->dev_id); /* -ENXIO means no assigned irq */ - if (r && r != -ENXIO) + if (r && r != -ENXIO) { perror("assigned_dev_update_msi: deassign irq"); + } free_msi_virqs(assigned_dev); @@ -1054,7 +1070,7 @@ static int assigned_dev_update_msix_mmio(PCIDevice *pci_dev) r = kvm_device_msix_init_vectors(kvm_state, adev->dev_id, entries_nr); if (r != 0) { fprintf(stderr, "fail to set MSI-X entry number for MSIX! %s\n", - strerror(-r)); + strerror(-r)); return r; } @@ -1107,8 +1123,9 @@ static void assigned_dev_update_msix(PCIDevice *pci_dev) (ctrl_word & PCI_MSIX_FLAGS_ENABLE)) { r = kvm_device_msix_deassign(kvm_state, assigned_dev->dev_id); /* -ENXIO means no assigned irq */ - if (r && r != -ENXIO) + if (r && r != -ENXIO) { perror("assigned_dev_update_msix: deassign irq"); + } free_msi_virqs(assigned_dev); @@ -1233,7 +1250,8 @@ static int assigned_device_pci_cap_init(PCIDevice *pci_dev) if (pos != 0 && kvm_check_extension(kvm_state, KVM_CAP_ASSIGN_DEV_IRQ)) { dev->cap.available |= ASSIGNED_DEVICE_CAP_MSI; /* Only 32-bit/no-mask currently supported */ - if ((ret = pci_add_capability(pci_dev, PCI_CAP_ID_MSI, pos, 10)) < 0) { + ret = pci_add_capability(pci_dev, PCI_CAP_ID_MSI, pos, 10); + if (ret < 0) { return ret; } pci_dev->msi_cap = pos; @@ -1257,7 +1275,8 @@ static int assigned_device_pci_cap_init(PCIDevice *pci_dev) uint32_t msix_table_entry; dev->cap.available |= ASSIGNED_DEVICE_CAP_MSIX; - if ((ret = pci_add_capability(pci_dev, PCI_CAP_ID_MSIX, pos, 12)) < 0) { + ret = pci_add_capability(pci_dev, PCI_CAP_ID_MSIX, pos, 12); + if (ret < 0) { return ret; } pci_dev->msix_cap = pos; @@ -1280,10 +1299,12 @@ static int assigned_device_pci_cap_init(PCIDevice *pci_dev) } /* Minimal PM support, nothing writable, device appears to NAK changes */ - if ((pos = pci_find_cap_offset(pci_dev, PCI_CAP_ID_PM, 0))) { + pos = pci_find_cap_offset(pci_dev, PCI_CAP_ID_PM, 0); + if (pos) { uint16_t pmc; - if ((ret = pci_add_capability(pci_dev, PCI_CAP_ID_PM, pos, - PCI_PM_SIZEOF)) < 0) { + + ret = pci_add_capability(pci_dev, PCI_CAP_ID_PM, pos, PCI_PM_SIZEOF); + if (ret < 0) { return ret; } @@ -1302,7 +1323,8 @@ static int assigned_device_pci_cap_init(PCIDevice *pci_dev) pci_set_byte(pci_dev->config + pos + PCI_PM_DATA_REGISTER, 0); } - if ((pos = pci_find_cap_offset(pci_dev, PCI_CAP_ID_EXP, 0))) { + pos = pci_find_cap_offset(pci_dev, PCI_CAP_ID_EXP, 0); + if (pos) { uint8_t version, size = 0; uint16_t type, devctl, lnksta; uint32_t devcap, lnkcap; @@ -1321,13 +1343,13 @@ static int assigned_device_pci_cap_init(PCIDevice *pci_dev) size = MIN(0x3c, PCI_CONFIG_SPACE_SIZE - pos); if (size < 0x34) { fprintf(stderr, - "%s: Invalid size PCIe cap-id 0x%x \n", + "%s: Invalid size PCIe cap-id 0x%x\n", __func__, PCI_CAP_ID_EXP); return -EINVAL; } else if (size != 0x3c) { fprintf(stderr, "WARNING, %s: PCIe cap-id 0x%x has " - "non-standard size 0x%x; std size should be 0x3c \n", + "non-standard size 0x%x; std size should be 0x3c\n", __func__, PCI_CAP_ID_EXP, size); } } else if (version == 0) { @@ -1350,8 +1372,8 @@ static int assigned_device_pci_cap_init(PCIDevice *pci_dev) return -EINVAL; } - if ((ret = pci_add_capability(pci_dev, PCI_CAP_ID_EXP, - pos, size)) < 0) { + ret = pci_add_capability(pci_dev, PCI_CAP_ID_EXP, pos, size); + if (ret < 0) { return ret; } @@ -1419,12 +1441,14 @@ static int assigned_device_pci_cap_init(PCIDevice *pci_dev) } } - if ((pos = pci_find_cap_offset(pci_dev, PCI_CAP_ID_PCIX, 0))) { + pos = pci_find_cap_offset(pci_dev, PCI_CAP_ID_PCIX, 0); + if (pos) { uint16_t cmd; uint32_t status; /* Only expose the minimum, 8 byte capability */ - if ((ret = pci_add_capability(pci_dev, PCI_CAP_ID_PCIX, pos, 8)) < 0) { + ret = pci_add_capability(pci_dev, PCI_CAP_ID_PCIX, pos, 8); + if (ret < 0) { return ret; } @@ -1446,9 +1470,11 @@ static int assigned_device_pci_cap_init(PCIDevice *pci_dev) pci_set_long(pci_dev->config + pos + PCI_X_STATUS, status); } - if ((pos = pci_find_cap_offset(pci_dev, PCI_CAP_ID_VPD, 0))) { + pos = pci_find_cap_offset(pci_dev, PCI_CAP_ID_VPD, 0); + if (pos) { /* Direct R/W passthrough */ - if ((ret = pci_add_capability(pci_dev, PCI_CAP_ID_VPD, pos, 8)) < 0) { + ret = pci_add_capability(pci_dev, PCI_CAP_ID_VPD, pos, 8); + if (ret < 0) { return ret; } @@ -1463,8 +1489,8 @@ static int assigned_device_pci_cap_init(PCIDevice *pci_dev) pos += PCI_CAP_LIST_NEXT) { uint8_t len = pci_get_byte(pci_dev->config + pos + PCI_CAP_FLAGS); /* Direct R/W passthrough */ - if ((ret = pci_add_capability(pci_dev, PCI_CAP_ID_VNDR, - pos, len)) < 0) { + ret = pci_add_capability(pci_dev, PCI_CAP_ID_VNDR, pos, len); + if (ret < 0) { return ret; } @@ -1740,8 +1766,9 @@ static int assigned_initfn(struct PCIDevice *pci_dev) /* handle real device's MMIO/PIO BARs */ if (assigned_dev_register_regions(dev->real_device.regions, dev->real_device.region_number, - dev)) + dev)) { goto out; + } /* handle interrupt routing */ e_intx = dev->dev.config[0x3d] - 1; @@ -1752,13 +1779,15 @@ static int assigned_initfn(struct PCIDevice *pci_dev) /* assign device to guest */ r = assign_device(dev); - if (r < 0) + if (r < 0) { goto out; + } /* assign legacy INTx to the device */ r = assign_intx(dev); - if (r < 0) + if (r < 0) { goto assigned_out; + } assigned_dev_load_option_rom(dev); QLIST_INSERT_HEAD(&devs, dev, next); @@ -1783,8 +1812,7 @@ static void assigned_exitfn(struct PCIDevice *pci_dev) free_assigned_device(dev); } -static Property da_properties[] = -{ +static Property da_properties[] = { DEFINE_PROP_PCI_HOST_DEVADDR("host", AssignedDevice, host), DEFINE_PROP_BIT("prefer_msi", AssignedDevice, features, ASSIGNED_DEVICE_PREFER_MSI_BIT, false), @@ -1837,8 +1865,9 @@ static void assigned_dev_load_option_rom(AssignedDevice *dev) void *ptr; /* If loading ROM from file, pci handles it */ - if (dev->dev.romfile || !dev->dev.rom_bar) + if (dev->dev.romfile || !dev->dev.rom_bar) { return; + } snprintf(rom_file, sizeof(rom_file), "/sys/bus/pci/devices/%04x:%02x:%02x.%01x/rom",