From e1d5bbcdc7ca08d8731f5d780f0de342a768d96a Mon Sep 17 00:00:00 2001 From: Tina Ruchandani Date: Tue, 19 May 2015 11:38:09 +0530 Subject: xen/pcifront: Remove usage of struct timeval struct timeval uses a 32-bit field for representing seconds, which will overflow in the year 2038 and beyond. Replace struct timeval with 64-bit ktime_t which is 2038 safe. This is part of a larger effort to remove instances of 32-bit timekeeping variables (timeval, time_t and timespec) from the kernel. Signed-off-by: Tina Ruchandani Suggested-by: Arnd Bergmann Reviewed-by: Boris Ostrovsky Reviewed-by: Arnd Bergmann Acked-by: Bjorn Helgaas Signed-off-by: David Vrabel --- drivers/pci/xen-pcifront.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'drivers/pci/xen-pcifront.c') diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c index 7cfd2db02deb..c4796c81c4af 100644 --- a/drivers/pci/xen-pcifront.c +++ b/drivers/pci/xen-pcifront.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -115,7 +116,6 @@ static int do_pci_op(struct pcifront_device *pdev, struct xen_pci_op *op) evtchn_port_t port = pdev->evtchn; unsigned irq = pdev->irq; s64 ns, ns_timeout; - struct timeval tv; spin_lock_irqsave(&pdev->sh_info_lock, irq_flags); @@ -132,8 +132,7 @@ static int do_pci_op(struct pcifront_device *pdev, struct xen_pci_op *op) * (in the latter case we end up continually re-executing poll() with a * timeout in the past). 1s difference gives plenty of slack for error. */ - do_gettimeofday(&tv); - ns_timeout = timeval_to_ns(&tv) + 2 * (s64)NSEC_PER_SEC; + ns_timeout = ktime_get_ns() + 2 * (s64)NSEC_PER_SEC; xen_clear_irq_pending(irq); @@ -141,8 +140,7 @@ static int do_pci_op(struct pcifront_device *pdev, struct xen_pci_op *op) (unsigned long *)&pdev->sh_info->flags)) { xen_poll_irq_timeout(irq, jiffies + 3*HZ); xen_clear_irq_pending(irq); - do_gettimeofday(&tv); - ns = timeval_to_ns(&tv); + ns = ktime_get_ns(); if (ns > ns_timeout) { dev_err(&pdev->xdev->dev, "pciback not responding!!!\n"); -- cgit