Re: [dpdk-stable] [PATCH] examples/vm_power: fix 32-bit build

[David Marchand <david.marchand@redhat.com>]

On Mon, Oct 5, 2020 at 8:57 PM Ferruh Yigit <ferruh.yigit@intel.com> wrote:
>
> Compiler version:
> gcc 10.2.1 "cc (GCC) 10.2.1 20200723 (Red Hat 10.2.1-1)"
>
> Build error:
> ../examples/vm_power_manager/guest_cli/vm_power_cli_guest.c:346:23:
>  warning: format ‘%ld’ expects argument of type ‘long int’, but
>         argument 4 has type ‘uint64_t’ {aka ‘long long unsigned int’}
>         [-Wformat=]
>   346 |    cmdline_printf(cl, "Capabilities of [%d] vcore are:"
>       |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ......
>   349 |      pkt_caps_list.turbo[i],
>       |      ~~~~~~~~~~~~~~~~~~~~~~
>       |                         |
>       |                         uint64_t {aka long long unsigned int}
>
> Fixes: 07525d1a047a ("examples/vm_power: send capabilities request from guest")
> Cc: stable@dpdk.org
>
> Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
> ---
> Cc: David Marchand <david.marchand@redhat.com>
> Cc: David Hunt <david.hunt@intel.com>
>
> Fixed patch is not new, not sure why getting the error now but was not
> getting it before, do you have any clue?
> Or is the CI having this error?

Personally, I do not have a libvirt for 32 bits on my build system.

In Intel CI, I can see a 32 bits job, but I guess there is no libvirt
for i386 available in it.
http://mails.dpdk.org/archives/test-report/2020-October/156516.html

The UNH lab has no 32 bits job.

In Travis, we have a "static" cross compilation job.
But static jobs only build l2fwd and l3fwd examples.

We could switch this job to shared to get all examples built, but we
would still need the libvirt devel headers + libs for i386 to get this
specific example to get built (I tried, but did not find the right
magic to install a i386 package).

We can at least add libvirt-devel for 64 bits in Travis.


> ---
>  examples/vm_power_manager/guest_cli/vm_power_cli_guest.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/examples/vm_power_manager/guest_cli/vm_power_cli_guest.c b/examples/vm_power_manager/guest_cli/vm_power_cli_guest.c
> index 96c1a1ff69..58029f8fb9 100644
> --- a/examples/vm_power_manager/guest_cli/vm_power_cli_guest.c
> +++ b/examples/vm_power_manager/guest_cli/vm_power_cli_guest.c
> @@ -344,13 +344,13 @@ cmd_query_caps_list_parsed(void *parsed_result,
>                 unsigned int i;
>                 for (i = 0; i < pkt_caps_list.num_vcpu; ++i)
>                         cmdline_printf(cl, "Capabilities of [%d] vcore are:"
> -                                       " turbo possibility: %ld, is priority core: %ld.\n",
> +                                       " turbo possibility: %"PRId64", is priority core: %"PRId64".\n",
>                                         i,
>                                         pkt_caps_list.turbo[i],
>                                         pkt_caps_list.priority[i]);
>         } else {
>                 cmdline_printf(cl, "Capabilities of [%d] vcore are:"
> -                               " turbo possibility: %ld, is priority core: %ld.\n",
> +                               " turbo possibility: %"PRId64", is priority core: %"PRId64".\n",
>                                 lcore_id,
>                                 pkt_caps_list.turbo[lcore_id],
>                                 pkt_caps_list.priority[lcore_id]);
> --
> 2.26.2
>

Installed a libvirt-devel for i686 on a fc32, reproduced and tested the fix.
Tested-by: David Marchand <david.marchand@redhat.com>


-- 
David Marchand