From patchwork Fri Jun 2 16:38:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Wilck X-Patchwork-Id: 13265677 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99B1FC7EE24 for ; Fri, 2 Jun 2023 16:39:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235898AbjFBQj0 (ORCPT ); Fri, 2 Jun 2023 12:39:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57934 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235887AbjFBQjY (ORCPT ); Fri, 2 Jun 2023 12:39:24 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 61FDE197; Fri, 2 Jun 2023 09:39:23 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 1F8BB1FDF2; Fri, 2 Jun 2023 16:39:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1685723962; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hUQHuivg+pTx9zDOLY7hB3+3Zv+Yz7oO049b7yXJKRk=; b=RZxuV7ccGTNaolK+1F92QgVexdQU9Km15f77w0CXDPMm/8ufxGQmO1sZLihXFHKLtmPToP Kk12BQBw5MtyfDCv4aA+O+Od1XU0S6WcWLwQYpKbQr2bC+zAi7yuMdgRbeY3NV4BuxbvC0 Rs5whCzVDHTrk4BA47Foj74FNzJNwL0= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id B46D1133E6; Fri, 2 Jun 2023 16:39:21 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id iFBcKjkbemSEDwAAMHmgww (envelope-from ); Fri, 02 Jun 2023 16:39:21 +0000 From: mwilck@suse.com To: "Martin K. Petersen" , Christoph Hellwig , Ming Lei Cc: James Bottomley , Bart Van Assche , linux-scsi@vger.kernel.org, linux-block@vger.kernel.org, Hannes Reinecke Subject: [PATCH 2/3] scsi: sg: increase number of devices Date: Fri, 2 Jun 2023 18:38:44 +0200 Message-Id: <20230602163845.32108-3-mwilck@suse.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230602163845.32108-1-mwilck@suse.com> References: <20230602163845.32108-1-mwilck@suse.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org From: Hannes Reinecke Larger setups may need to allocate more than 32k sg devices, so increase the number of devices to the full range of minor device numbers. Signed-off-by: Hannes Reinecke Acked-by: Douglas Gilbert --- drivers/scsi/sg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 037f8c98a6d3..6c04cf941dac 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -71,7 +71,7 @@ static int sg_proc_init(void); #define SG_ALLOW_DIO_DEF 0 -#define SG_MAX_DEVS 32768 +#define SG_MAX_DEVS (1 << MINORBITS) /* SG_MAX_CDB_SIZE should be 260 (spc4r37 section 3.1.30) however the type * of sg_io_hdr::cmd_len can only represent 255. All SCSI commands greater