[U-Boot] [RFC][PATCH v3] net: nfs: make NFS_TIMEOUT configurable

[Tetsuyuki Kobayashi <koba@kmckk.co.jp>]

Dear Joe Hershberger,

How is this patch's status?

(2012/07/04 17:25), Tetsuyuki Kobayashi wrote:
> NFS_TIMEOUT is constant value defined in net/nfs.c. But sometimes it needs to adjust.
> This patch enables to override NFS_TIMEOUT by defining CONFIG_NFS_TIMEOUT in a board specific config file.
>
> Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
> ---
> Changes for v2:
>     - remove a wrong #error line
> Changes for v3:
>     - add CONFIG_NFS_TIMEOUT after CONFIG_ARP_TIMEOUT in README file
>     - align #ifndef - #else - #endif format as same as tftp.c
>
>   README    |    7 +++++++
>   net/nfs.c |    6 +++++-
>   2 files changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/README b/README
> index 67dc444..9a18a5c 100644
> --- a/README
> +++ b/README
> @@ -2140,6 +2140,13 @@ The following options need to be configured:
>
>   		Timeout waiting for an ARP reply in milliseconds.
>
> +		CONFIG_NFS_TIMEOUT
> +
> +		Timeout in milliseconds used in NFS protocol.
> +		If you encounter "ERROR: Cannot umount" in nfs command,
> +		try longer timeout such as
> +		#define CONFIG_NFS_TIMEOUT 10000UL
> +
>   - Command Interpreter:
>   		CONFIG_AUTO_COMPLETE
>
> diff --git a/net/nfs.c b/net/nfs.c
> index 5b99763..7f2393f 100644
> --- a/net/nfs.c
> +++ b/net/nfs.c
> @@ -31,7 +31,11 @@
>
>   #define HASHES_PER_LINE 65	/* Number of "loading" hashes per line	*/
>   #define NFS_RETRY_COUNT 30
> -#define NFS_TIMEOUT 2000UL
> +#ifndef CONFIG_NFS_TIMEOUT
> +# define NFS_TIMEOUT 2000UL
> +#else
> +# define NFS_TIMEOUT CONFIG_NFS_TIMEOUT
> +#endif
>
>   static int fs_mounted;
>   static unsigned long rpc_id;
>