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SUSE:SLE-15-SP5:GA
qemu.12238
0060-pvusb-set-max-grants-only-in-initia.patch
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File 0060-pvusb-set-max-grants-only-in-initia.patch of Package qemu.12238
From: Juergen Gross <jgross@suse.com> Date: Thu, 6 Dec 2018 14:39:23 +0100 Subject: pvusb: set max grants only in initialise Don't call xen_be_set_max_grant_refs() in usbback_alloc(), as the gnttabdev pointer won't be initialised yet. The call can easily be moved to usbback_connect(). Signed-off-by: Juergen Gross <jgross@suse.com> Message-id: 20181206133923.30105-1-jgross@suse.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> (cherry picked from commit f8224fb0faec9f4184b29b8158534536e6580748) [BR: BSC#1128106] Signed-off-by: Bruce Rogers <brogers@suse.com> --- hw/usb/xen-usb.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/hw/usb/xen-usb.c b/hw/usb/xen-usb.c index 5b2e21ed18..f5d5c91094 100644 --- a/hw/usb/xen-usb.c +++ b/hw/usb/xen-usb.c @@ -860,10 +860,14 @@ static int usbback_connect(struct XenDevice *xendev) struct usbif_conn_sring *conn_sring; int urb_ring_ref; int conn_ring_ref; - unsigned int i; + unsigned int i, max_grants; TR_BUS(xendev, "start\n"); + /* max_grants: for each request and for the rings (request and connect). */ + max_grants = USBIF_MAX_SEGMENTS_PER_REQUEST * USB_URB_RING_SIZE + 2; + xen_be_set_max_grant_refs(xendev, max_grants); + usbif = container_of(xendev, struct usbback_info, xendev); if (xenstore_read_fe_int(xendev, "urb-ring-ref", &urb_ring_ref)) { @@ -1005,7 +1009,7 @@ static void usbback_alloc(struct XenDevice *xendev) { struct usbback_info *usbif; USBPort *p; - unsigned int i, max_grants; + unsigned int i; usbif = container_of(xendev, struct usbback_info, xendev); @@ -1021,10 +1025,6 @@ static void usbback_alloc(struct XenDevice *xendev) QTAILQ_INIT(&usbif->req_free_q); QSIMPLEQ_INIT(&usbif->hotplug_q); usbif->bh = qemu_bh_new(usbback_bh, usbif); - - /* max_grants: for each request and for the rings (request and connect). */ - max_grants = USBIF_MAX_SEGMENTS_PER_REQUEST * USB_URB_RING_SIZE + 2; - xen_be_set_max_grant_refs(xendev, max_grants); } static int usbback_free(struct XenDevice *xendev)
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