linux-kernel - [PATCH v1 2/2] spi: bcm-qspi: Always change BSPI_MAST_N_BOOT

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 25 Apr 2018 14:28:05 -0400
From:   Kamal Dasu <kdasu.kdev@...il.com>
To:     broonie@...nel.org, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     f.fainelli@...il.com, bcm-kernel-feedback-list@...adcom.com,
        jon.mason@...adcom.com, yendapally.reddy@...adcom.com,
        Kamal Dasu <kdasu.kdev@...il.com>
Subject: [PATCH v1 2/2] spi: bcm-qspi: Always change BSPI_MAST_N_BOOT_CTRL state

Always confirm the BSPI_MAST_N_BOOT_CTRL bit when enabling
or disabling BSPI transfers.

Signed-off-by: Kamal Dasu <kdasu.kdev@...il.com>
---
 drivers/spi/spi-bcm-qspi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index 2946989..6573152 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -490,7 +490,7 @@ static int bcm_qspi_bspi_set_mode(struct bcm_qspi *qspi,
 
 static void bcm_qspi_enable_bspi(struct bcm_qspi *qspi)
 {
-	if (!has_bspi(qspi) || (qspi->bspi_enabled))
+	if (!has_bspi(qspi))
 		return;
 
 	qspi->bspi_enabled = 1;
@@ -505,7 +505,7 @@ static void bcm_qspi_enable_bspi(struct bcm_qspi *qspi)
 
 static void bcm_qspi_disable_bspi(struct bcm_qspi *qspi)
 {
-	if (!has_bspi(qspi) || (!qspi->bspi_enabled))
+	if (!has_bspi(qspi))
 		return;
 
 	qspi->bspi_enabled = 0;
-- 
2.7.4