> We get 1 warning when building kernel with W=1:
> drivers/staging/lustre/lustre/lmv/lmv_obd.c:2774:5: warning: no previous 
> prototype for 'lmv_pack_md' [-Wmissing-prototypes]
> 
> In fact, this function is not declared in any file,but should be
> declared in a header file, thus can be recognized in other file.
> 
> So this patch adds the declarations into
> drivers/staging/lustre/lustre/include/lustre_lmv.h.
> 
> Signed-off-by: Baoyou Xie <baoyou....@linaro.org>
> ---
>  drivers/staging/lustre/lustre/include/lustre_lmv.h | 2 ++
>  1 file changed, 2 insertions(+)

Nak. I'm not seeing this error with W=1. Also if you look
lmv_pack_md() is only used in lmv_obd.c and the function
appears early in the file before it is used, so no prototype
missing errors should happen. 
 
> diff --git a/drivers/staging/lustre/lustre/include/lustre_lmv.h 
> b/drivers/staging/lustre/lustre/include/lustre_lmv.h
> index 085e596..21302c7 100644
> --- a/drivers/staging/lustre/lustre/include/lustre_lmv.h
> +++ b/drivers/staging/lustre/lustre/include/lustre_lmv.h
> @@ -119,3 +119,5 @@ static inline void lmv_le_to_cpu(union lmv_mds_md 
> *lmv_dst,
>  }
> 
> +int lmv_pack_md(union lmv_mds_md **lmmp, const struct lmv_stripe_md *lsm,
> +             int stripe_count);
>  #endif
> -- 
> 2.7.4
> 
> 

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