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charset="utf-8" We are going to support non-PCI devices soon. For this we need to split the generic GuestDiskAddress and GuestDiskAddressList memory allocation and chaining into a separate function first. Signed-off-by: Thomas Huth --- qga/commands-posix.c | 65 ++++++++++++++++++++++++++++---------------- 1 file changed, 41 insertions(+), 24 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 1a62a3a70d..cddbaf5c69 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -861,28 +861,30 @@ static int build_hosts(char const *syspath, char cons= t *host, bool ata, return i; } =20 -/* Store disk device info specified by @sysfs into @fs */ -static void build_guest_fsinfo_for_real_device(char const *syspath, - GuestFilesystemInfo *fs, - Error **errp) +/* + * Store disk device info for devices on the PCI bus. + * Returns true if information has been stored, or false for failure. + */ +static bool build_guest_fsinfo_for_pci_dev(char const *syspath, + GuestDiskAddress *disk, + GuestPCIAddress *pciaddr, + Error **errp) { unsigned int pci[4], host, hosts[8], tgt[3]; int i, nhosts =3D 0, pcilen; - GuestDiskAddress *disk; - GuestPCIAddress *pciaddr; - GuestDiskAddressList *list =3D NULL; bool has_ata =3D false, has_host =3D false, has_tgt =3D false; char *p, *q, *driver =3D NULL; #ifdef CONFIG_LIBUDEV struct udev *udev =3D NULL; struct udev_device *udevice =3D NULL; #endif + bool ret =3D false; =20 p =3D strstr(syspath, "/devices/pci"); if (!p || sscanf(p + 12, "%*x:%*x/%x:%x:%x.%x%n", pci, pci + 1, pci + 2, pci + 3, &pcilen) < 4) { g_debug("only pci device is supported: sysfs path '%s'", syspath); - return; + return false; } =20 p +=3D 12 + pcilen; @@ -903,7 +905,7 @@ static void build_guest_fsinfo_for_real_device(char con= st *syspath, } =20 g_debug("unsupported driver or sysfs path '%s'", syspath); - return; + return false; } =20 p =3D strstr(syspath, "/target"); @@ -929,18 +931,11 @@ static void build_guest_fsinfo_for_real_device(char c= onst *syspath, } } =20 - pciaddr =3D g_malloc0(sizeof(*pciaddr)); pciaddr->domain =3D pci[0]; pciaddr->bus =3D pci[1]; pciaddr->slot =3D pci[2]; pciaddr->function =3D pci[3]; =20 - disk =3D g_malloc0(sizeof(*disk)); - disk->pci_controller =3D pciaddr; - - list =3D g_malloc0(sizeof(*list)); - list->value =3D disk; - #ifdef CONFIG_LIBUDEV udev =3D udev_new(); udevice =3D udev_device_new_from_syspath(udev, syspath); @@ -1018,21 +1013,43 @@ static void build_guest_fsinfo_for_real_device(char= const *syspath, goto cleanup; } =20 - list->next =3D fs->disk; - fs->disk =3D list; - goto out; + ret =3D true; =20 cleanup: - if (list) { - qapi_free_GuestDiskAddressList(list); - } -out: g_free(driver); #ifdef CONFIG_LIBUDEV udev_unref(udev); udev_device_unref(udevice); #endif - return; + return ret; +} + +/* Store disk device info specified by @sysfs into @fs */ +static void build_guest_fsinfo_for_real_device(char const *syspath, + GuestFilesystemInfo *fs, + Error **errp) +{ + GuestDiskAddress *disk; + GuestPCIAddress *pciaddr; + GuestDiskAddressList *list =3D NULL; + bool has_pci; + + pciaddr =3D g_malloc(sizeof(*pciaddr)); + memset(pciaddr, -1, sizeof(*pciaddr)); /* -1 means field is invalid */ + + disk =3D g_malloc0(sizeof(*disk)); + disk->pci_controller =3D pciaddr; + + list =3D g_malloc0(sizeof(*list)); + list->value =3D disk; + + has_pci =3D build_guest_fsinfo_for_pci_dev(syspath, disk, pciaddr, err= p); + if (has_pci) { + list->next =3D fs->disk; + fs->disk =3D list; + } else { + qapi_free_GuestDiskAddressList(list); + } } =20 static void build_guest_fsinfo_for_device(char const *devpath, --=20 2.18.1