[PATCH 5.11 297/342] smb3: if max_channels set to more than one channel request multichannel

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From: Steve French <stfrench@xxxxxxxxxxxxx>

commit c1f8a398b6d661b594556a91224b096d92293061 upstream.

Mounting with "multichannel" is obviously implied if user requested
more than one channel on mount (ie mount parm max_channels>1).
Currently both have to be specified. Fix that so that if max_channels
is greater than 1 on mount, enable multichannel rather than silently
falling back to non-multichannel.

Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Reviewed-By: Tom Talpey <tom@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v5.11+
Reviewed-by: Shyam Prasad N <sprasad@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 fs/cifs/fs_context.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/fs/cifs/fs_context.c
+++ b/fs/cifs/fs_context.c
@@ -978,6 +978,9 @@ static int smb3_fs_context_parse_param(s
 			goto cifs_parse_mount_err;
 		}
 		ctx->max_channels = result.uint_32;
+		/* If more than one channel requested ... they want multichan */
+		if (result.uint_32 > 1)
+			ctx->multichannel = true;
 		break;
 	case Opt_handletimeout:
 		ctx->handle_timeout = result.uint_32;





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