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SubjectRE: [PATCH v2 1/2] net: ethernet: i40e: fix build error
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> -----Original Message-----
> From: Wang Dongsheng [mailto:dongsheng.wang@hxt-semitech.com]
> Sent: Tuesday, September 04, 2018 7:27 PM
> To: Kirsher, Jeffrey T <jeffrey.t.kirsher@intel.com>;
> sergei.shtylyov@cogentembedded.com
> Cc: Keller, Jacob E <jacob.e.keller@intel.com>; davem@davemloft.net; intel-
> wired-lan@lists.osuosl.org; netdev@vger.kernel.org; linux-
> kernel@vger.kernel.org; Wang Dongsheng <dongsheng.wang@hxt-
> semitech.com>
> Subject: [PATCH v2 1/2] net: ethernet: i40e: fix build error
>
> Remove "inline" from __i40e_add_stat_strings.
>
> In file included from
> drivers/net/ethernet/intel/i40e/i40e_ethtool.c:9:0:
> drivers/net/ethernet/intel/i40e/i40e_ethtool.c: In function
> ‘__i40e_add_stat_strings’:
> drivers/net/ethernet/intel/i40e/i40e_ethtool_stats.h:193:20: error:
> function ‘__i40e_add_stat_strings’ can never be inlined because it uses
> variable argument lists
> static inline void __i40e_add_stat_strings(u8 **p, const struct
> i40e_stats stats[],
>
> Signed-off-by: Wang Dongsheng <dongsheng.wang@hxt-semitech.com>

Thanks for the fix.

A bit off topic, but these two files in the i40e and i40evf share some code. Is there a good mechanism for sharing these between the two drivers that would allow the modules to be independent? That would be ideal.

Acked-by: Jacob Keller <jacob.e.keller@intel.com>

> ---
> v2:
> 1. Move function.
> 2. Include a new patch at [2/2].
>
> ---
> .../net/ethernet/intel/i40e/i40e_ethtool.c | 24 ++++++++++++++++++
> .../ethernet/intel/i40e/i40e_ethtool_stats.h | 25 ++-----------------
> 2 files changed, 26 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
> b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
> index d7d3974beca2..f4a70d67a80a 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
> @@ -1821,6 +1821,30 @@ static void i40e_get_ethtool_stats(struct net_device
> *netdev,
> "ethtool stats count mismatch!");
> }
>
> +/**
> + * __i40e_add_stat_strings - copy stat strings into ethtool buffer
> + * @p: ethtool supplied buffer
> + * @stats: stat definitions array
> + * @size: size of the stats array
> + *
> + * Format and copy the strings described by stats into the buffer pointed at
> + * by p.
> + **/
> +void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
> + const unsigned int size, ...)
> +{
> + unsigned int i;
> +
> + for (i = 0; i < size; i++) {
> + va_list args;
> +
> + va_start(args, size);
> + vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
> + *p += ETH_GSTRING_LEN;
> + va_end(args);
> + }
> +}
> +
> /**
> * i40e_get_stat_strings - copy stat strings into supplied buffer
> * @netdev: the netdev to collect strings for
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool_stats.h
> b/drivers/net/ethernet/intel/i40e/i40e_ethtool_stats.h
> index bba1cb0b658f..0874c352136a 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool_stats.h
> +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool_stats.h
> @@ -181,29 +181,8 @@ i40e_add_queue_stats(u64 **data, struct i40e_ring
> *ring)
> *data += size;
> }
>
> -/**
> - * __i40e_add_stat_strings - copy stat strings into ethtool buffer
> - * @p: ethtool supplied buffer
> - * @stats: stat definitions array
> - * @size: size of the stats array
> - *
> - * Format and copy the strings described by stats into the buffer pointed at
> - * by p.
> - **/
> -static inline void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
> - const unsigned int size, ...)
> -{
> - unsigned int i;
> -
> - for (i = 0; i < size; i++) {
> - va_list args;
> -
> - va_start(args, size);
> - vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
> - *p += ETH_GSTRING_LEN;
> - va_end(args);
> - }
> -}
> +void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
> + const unsigned int size, ...);
>
> /**
> * 40e_add_stat_strings - copy stat strings into ethtool buffer
> --
> 2.18.0

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