From patchwork Tue Jun 6 19:38:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Wilck X-Patchwork-Id: 13269683 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 C9A20C83003 for ; Tue, 6 Jun 2023 19:39:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229603AbjFFTjM (ORCPT ); Tue, 6 Jun 2023 15:39:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232094AbjFFTiy (ORCPT ); Tue, 6 Jun 2023 15:38:54 -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 5B37210EC; Tue, 6 Jun 2023 12:38:53 -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 F284C1FD94; Tue, 6 Jun 2023 19:38:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1686080332; 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=qVIEkGqw5a+jSqUHhvJwqFvm7MGHdaBak6UofBYr9tc=; b=PrO7Lw0z3fEWibFaTiR5OrwxUNJnICasm5nPgrpv1IshqwYOy2tZ5HDcuuyl6dmmHjB2pC J0Mj0YCDro1oSGwNECCf5E2NOQ0Y9KjuGy6hloqnhQVJArgRoG7Oyxm7LSBFpggTWqiehM f8Ts775JlMNIkkkzXglb7/+6jXiz0w0= 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 9FDBF13776; Tue, 6 Jun 2023 19:38:51 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id MCl8JUuLf2RaFwAAMHmgww (envelope-from ); Tue, 06 Jun 2023 19:38:51 +0000 From: mwilck@suse.com To: "Martin K. Petersen" , Christoph Hellwig , Ming Lei , Bart Van Assche Cc: James Bottomley , linux-scsi@vger.kernel.org, linux-block@vger.kernel.org, Hannes Reinecke , Douglas Gilbert Subject: [PATCH v2 2/3] scsi: sg: increase number of devices Date: Tue, 6 Jun 2023 21:38:44 +0200 Message-Id: <20230606193845.9627-3-mwilck@suse.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230606193845.9627-1-mwilck@suse.com> References: <20230606193845.9627-1-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 Reviewed-by: Christoph Hellwig --- 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