Re: [Qemu-devel] [PATCH 1/3] pci-assign: use monitor_handle_fd_param

[Markus Armbruster <armbru@redhat.com>]

Luiz Capitulino <lcapitulino@redhat.com> writes:

> From: Paolo Bonzini <pbonzini@redhat.com>
>
> There is no need to open-code the choice between a file descriptor
> number or a named one.  Just use monitor_handle_fd_param, which
> also takes care of printing the error message.
>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
> ---
>  hw/kvm/pci-assign.c | 12 +++---------
>  1 file changed, 3 insertions(+), 9 deletions(-)
>
> diff --git a/hw/kvm/pci-assign.c b/hw/kvm/pci-assign.c
> index 05b93d9..7a0998c 100644
> --- a/hw/kvm/pci-assign.c
> +++ b/hw/kvm/pci-assign.c
> @@ -579,15 +579,9 @@ static int get_real_device(AssignedDevice *pci_dev, uint16_t r_seg,
>      snprintf(name, sizeof(name), "%sconfig", dir);
>  
>      if (pci_dev->configfd_name && *pci_dev->configfd_name) {
> -        if (qemu_isdigit(pci_dev->configfd_name[0])) {
> -            dev->config_fd = strtol(pci_dev->configfd_name, NULL, 0);
> -        } else {
> -            dev->config_fd = monitor_get_fd(cur_mon, pci_dev->configfd_name);
> -            if (dev->config_fd < 0) {
> -                error_report("%s: (%s) unkown", __func__,
> -                             pci_dev->configfd_name);
> -                return 1;
> -            }
> +        dev->config_fd = monitor_handle_fd_param(cur_mon, pci_dev->configfd_name);
> +        if (dev->config_fd < 0) {
> +            return 1;
>          }
>      } else {
>          dev->config_fd = open(name, O_RDWR);

Silent change: no longer accepts file descriptors in octal and hex.

Silent fix: now rejects junk after numeric file descriptor.  

Both are fine with me, but perhaps worth mentioning in the commit
message.