Re: [PATCH] Fix build with 64 bits time_t

["Michael S. Tsirkin" <mst@redhat.com>]

On Tue, Nov 17, 2020 at 09:28:46PM +0100, Fabrice Fontaine wrote:
> time element is deprecated on new input_event structure in kernel's
> input.h [1]
> 
> This will avoid the following build failure:
> 
> hw/input/virtio-input-host.c: In function 'virtio_input_host_handle_status':
> hw/input/virtio-input-host.c:198:28: error: 'struct input_event' has no member named 'time'
>   198 |     if (gettimeofday(&evdev.time, NULL)) {
>       |                            ^
> 
> Fixes:
>  - http://autobuild.buildroot.org/results/a538167e288c14208d557cd45446df86d3d599d5
>  - http://autobuild.buildroot.org/results/efd4474fb4b6c0ce0ab3838ce130429c51e43bbb
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=152194fe9c3f
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> ---
>  contrib/vhost-user-input/main.c | 10 +++++++++-
>  hw/input/virtio-input-host.c    | 10 +++++++++-
>  2 files changed, 18 insertions(+), 2 deletions(-)
> 
> diff --git a/contrib/vhost-user-input/main.c b/contrib/vhost-user-input/main.c
> index 6020c6f33a..e688c3e0a9 100644
> --- a/contrib/vhost-user-input/main.c
> +++ b/contrib/vhost-user-input/main.c
> @@ -17,6 +17,11 @@
>  #include "standard-headers/linux/virtio_input.h"
>  #include "qapi/error.h"
>  
> +#ifndef input_event_sec
> +#define input_event_sec time.tv_sec
> +#define input_event_usec time.tv_usec
> +#endif
> +
>  enum {
>      VHOST_USER_INPUT_MAX_QUEUES = 2,
>  };

Just update ./include/standard-headers/linux/input.h, we'll get these
defines for free.


> @@ -115,13 +120,16 @@ vi_evdev_watch(VuDev *dev, int condition, void *data)
>  static void vi_handle_status(VuInput *vi, virtio_input_event *event)
>  {
>      struct input_event evdev;
> +    struct timeval tval;
>      int rc;
>  
> -    if (gettimeofday(&evdev.time, NULL)) {
> +    if (gettimeofday(&tval, NULL)) {
>          perror("vi_handle_status: gettimeofday");
>          return;
>      }
>  
> +    evdev.input_event_sec = tval.tv_sec;
> +    evdev.input_event_usec = tval.tv_usec;
>      evdev.type = le16toh(event->type);
>      evdev.code = le16toh(event->code);
>      evdev.value = le32toh(event->value);
> diff --git a/hw/input/virtio-input-host.c b/hw/input/virtio-input-host.c
> index 85daf73f1a..2e261737e1 100644
> --- a/hw/input/virtio-input-host.c
> +++ b/hw/input/virtio-input-host.c
> @@ -16,6 +16,11 @@
>  #include <sys/ioctl.h>
>  #include "standard-headers/linux/input.h"
>  
> +#ifndef input_event_sec
> +#define input_event_sec time.tv_sec
> +#define input_event_usec time.tv_usec
> +#endif
> +
>  /* ----------------------------------------------------------------- */
>  
>  static struct virtio_input_config virtio_input_host_config[] = {
> @@ -193,13 +198,16 @@ static void virtio_input_host_handle_status(VirtIOInput *vinput,
>  {
>      VirtIOInputHost *vih = VIRTIO_INPUT_HOST(vinput);
>      struct input_event evdev;
> +    struct timeval tval;
>      int rc;
>  
> -    if (gettimeofday(&evdev.time, NULL)) {
> +    if (gettimeofday(&tval, NULL)) {
>          perror("virtio_input_host_handle_status: gettimeofday");
>          return;
>      }
>  
> +    evdev.input_event_sec = tval.tv_sec;
> +    evdev.input_event_usec = tval.tv_usec;
>      evdev.type = le16_to_cpu(event->type);
>      evdev.code = le16_to_cpu(event->code);
>      evdev.value = le32_to_cpu(event->value);
> -- 
> 2.29.2