From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Matthew R. Ochs" Subject: [PATCH v4 29/32] cxlflash: Fix to double the delay each time Date: Fri, 25 Sep 2015 18:19:17 -0500 Message-ID: <1443223157-10039-1-git-send-email-mrochs@linux.vnet.ibm.com> References: <1443222593-8828-1-git-send-email-mrochs@linux.vnet.ibm.com> Return-path: Received: from e39.co.us.ibm.com ([32.97.110.160]:52308 "EHLO e39.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754381AbbIYXUB (ORCPT ); Fri, 25 Sep 2015 19:20:01 -0400 Received: from localhost by e39.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 25 Sep 2015 17:20:01 -0600 Received: from b01cxnp22035.gho.pok.ibm.com (b01cxnp22035.gho.pok.ibm.com [9.57.198.25]) by d01dlp03.pok.ibm.com (Postfix) with ESMTP id E0F72C9003C for ; Fri, 25 Sep 2015 19:11:01 -0400 (EDT) Received: from d01av03.pok.ibm.com (d01av03.pok.ibm.com [9.56.224.217]) by b01cxnp22035.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id t8PNJwR546334202 for ; Fri, 25 Sep 2015 23:19:58 GMT Received: from d01av03.pok.ibm.com (localhost [127.0.0.1]) by d01av03.pok.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id t8PNJuXW016641 for ; Fri, 25 Sep 2015 19:19:58 -0400 In-Reply-To: <1443222593-8828-1-git-send-email-mrochs@linux.vnet.ibm.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org, James Bottomley , "Nicholas A. Bellinger" , Brian King , Ian Munsie , Daniel Axtens , Andrew Donnellan , Tomas Henzl , David Laight Cc: Michael Neuling , linuxppc-dev@lists.ozlabs.org, Manoj Kumar From: Manoj Kumar The operator used to double the delay is incorrect and does not result in delay doubling. To fix, use a left shift instead of the XOR operator. Reported-by: Tomas Henzl Signed-off-by: Matthew R. Ochs Signed-off-by: Manoj N. Kumar Reviewed-by: Brian King --- drivers/scsi/cxlflash/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c index ab11ee6..be78906 100644 --- a/drivers/scsi/cxlflash/main.c +++ b/drivers/scsi/cxlflash/main.c @@ -303,7 +303,7 @@ write_rrin: if (rrin != 0x1) break; /* Double delay each time */ - udelay(2 ^ nretry); + udelay(2 << nretry); } while (nretry++ < MC_ROOM_RETRY_CNT); } -- 2.1.0