[dpdk-dev] [PATCH] igb_uio: kernel version check for using kstrtoul or strict_strtoul
Jincheng Miao
jmiao at redhat.com
Wed Dec 10 03:54:57 CET 2014
Here is my patch for it, and it also resolves issue of pci_num_vf()
definition.
And I will send V3 for a while.
On 12/10/2014 10:38 AM, Helin Zhang wrote:
> strict_strtoul() was just a redefinition of kstrtoul() for a long
> time. From kernel version of 3.18, strict_strtoul() will not be
> defined at all. A compile time kernel version check is needed to
> decide which function or macro can be used for a specific version
> of kernel.
>
> Signed-off-by: Helin Zhang <helin.zhang at intel.com>
> ---
> lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
> index d1ca26e..2fcc5f4 100644
> --- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
> +++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
> @@ -83,7 +83,11 @@ store_max_vfs(struct device *dev, struct device_attribute *attr,
> unsigned long max_vfs;
> struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
>
> +#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 2, 0)
> if (0 != strict_strtoul(buf, 0, &max_vfs))
> +#else
> + if (0 != kstrtoul(buf, 0, &max_vfs))
> +#endif
> return -EINVAL;
>
> if (0 == max_vfs)
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