From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754767Ab2L1TWo (ORCPT ); Fri, 28 Dec 2012 14:22:44 -0500 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:55723 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932491Ab2L1TT6 (ORCPT ); Fri, 28 Dec 2012 14:19:58 -0500 Message-Id: <20121228190335.473377595@decadent.org.uk> User-Agent: quilt/0.60-1 Date: Fri, 28 Dec 2012 20:03:56 +0100 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Jean Delvare , Mauro Carvalho Chehab , Doug Thompson Subject: [ 026/173] i7300_edac: Fix error flag testing In-Reply-To: <20121228190330.025298996@decadent.org.uk> X-SA-Exim-Connect-IP: 151.217.219.220 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jean Delvare commit 7e06b7a3333f5c7a0cec12aff20d39c5c87c0795 upstream. * Right-shift the values in GET_FBD_FAT_IDX and GET_FBD_NF_IDX, so that the callers get the result they expect. * Fix definition of FERR_FAT_FBD_ERR_MASK. * Call GET_FBD_NF_IDX, not GET_FBD_FAT_IDX, when operating on register FERR_NF_FBD. We were lucky they have the same definition. This fixes kernel bug #44131: https://bugzilla.kernel.org/show_bug.cgi?id=44131 Signed-off-by: Jean Delvare Cc: Mauro Carvalho Chehab Cc: Doug Thompson Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Ben Hutchings --- drivers/edac/i7300_edac.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/edac/i7300_edac.c b/drivers/edac/i7300_edac.c index a09d066..9d669cd 100644 --- a/drivers/edac/i7300_edac.c +++ b/drivers/edac/i7300_edac.c @@ -197,8 +197,8 @@ static const char *ferr_fat_fbd_name[] = { [0] = "Memory Write error on non-redundant retry or " "FBD configuration Write error on retry", }; -#define GET_FBD_FAT_IDX(fbderr) (fbderr & (3 << 28)) -#define FERR_FAT_FBD_ERR_MASK ((1 << 0) | (1 << 1) | (1 << 2) | (1 << 3)) +#define GET_FBD_FAT_IDX(fbderr) (((fbderr) >> 28) & 3) +#define FERR_FAT_FBD_ERR_MASK ((1 << 0) | (1 << 1) | (1 << 2) | (1 << 22)) #define FERR_NF_FBD 0xa0 static const char *ferr_nf_fbd_name[] = { @@ -225,7 +225,7 @@ static const char *ferr_nf_fbd_name[] = { [1] = "Aliased Uncorrectable Non-Mirrored Demand Data ECC", [0] = "Uncorrectable Data ECC on Replay", }; -#define GET_FBD_NF_IDX(fbderr) (fbderr & (3 << 28)) +#define GET_FBD_NF_IDX(fbderr) (((fbderr) >> 28) & 3) #define FERR_NF_FBD_ERR_MASK ((1 << 24) | (1 << 23) | (1 << 22) | (1 << 21) |\ (1 << 18) | (1 << 17) | (1 << 16) | (1 << 15) |\ (1 << 14) | (1 << 13) | (1 << 11) | (1 << 10) |\ @@ -464,7 +464,7 @@ static void i7300_process_fbd_error(struct mem_ctl_info *mci) errnum = find_first_bit(&errors, ARRAY_SIZE(ferr_nf_fbd_name)); specific = GET_ERR_FROM_TABLE(ferr_nf_fbd_name, errnum); - branch = (GET_FBD_FAT_IDX(error_reg) == 2) ? 1 : 0; + branch = (GET_FBD_NF_IDX(error_reg) == 2) ? 1 : 0; pci_read_config_dword(pvt->pci_dev_16_1_fsb_addr_map, REDMEMA, &syndrome);