[dpdk-dev] [PATCH v3 06/12] eal: pci: vfio: add rd/wr func for pci bar space
Wiles, Keith
keith.wiles at intel.com
Thu Jan 7 19:26:30 CET 2016
On 1/7/16, 12:19 PM, "dev on behalf of Stephen Hemminger" <dev-bounces at dpdk.org on behalf of stephen at networkplumber.org> wrote:
>On Thu, 7 Jan 2016 22:03:03 +0530
>Santosh Shukla <sshukla at mvista.com> wrote:
>
>>
>> +int rte_eal_pci_read_bar(const struct rte_pci_device *device __rte_unused,
>> + void *buf __rte_unused,
>> + size_t len __rte_unused,
>> + off_t offset __rte_unused,
>> + int bar_idx __rte_unused)
>> +{
>> +#ifdef VFIO_PRESENT
>> + const struct rte_intr_handle *intr_handle = &device->intr_handle;
>> + return pci_vfio_read_bar(intr_handle, buf, len, offset, bar_idx);
>> +#else
>> + return 0; /* UIO's not applicable */
>> +#endif
>> +}
>
>It seems wrong to declare all the parameters as unused but then use them.
>Maybe there is a way to have a macro for USED(x) in the #else case
I would suggest we create a macro '#define RTE_UNUSED(x) ((void)x)’, unless we have one and I missed it groping though the code.
>
Regards,
Keith
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