linux-kernel - [PATCH RESEND v4 06/11] staging: fsl-mc: Changed DPRC built-in portal's mc

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]

Message-ID: <1452117809-1870-7-git-send-email-German.Rivera@freescale.com>
Date:	Wed, 6 Jan 2016 16:03:24 -0600
From:	"J. German Rivera" <German.Rivera@...escale.com>
To:	<gregkh@...uxfoundation.org>, <arnd@...db.de>,
	<devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>
CC:	<stuart.yoder@...escale.com>, <itai.katz@...escale.com>,
	<lijun.pan@...escale.com>, <leoli@...escale.com>,
	<scottwood@...escale.com>, <agraf@...e.de>,
	<bhamciu1@...escale.com>, <R89243@...escale.com>,
	<bhupesh.sharma@...escale.com>, <nir.erez@...escale.com>,
	<richard.schmitt@...escale.com>, <dan.carpenter@...cle.com>,
	<marc.zyngier@....com>, <jiang.liu@...ux.intel.com>,
	"J. German Rivera" <German.Rivera@...escale.com>
Subject: [PATCH RESEND v4 06/11] staging: fsl-mc: Changed DPRC built-in portal's mc_io to be atomic

From: "J. German Rivera" <German.Rivera@...escale.com>

The DPRC built-in portal's mc_io is used to send commands to the MC
to program MSIs for MC objects. This is done by the
fsl_mc_msi_write_msg() callback, which is invoked by the generic MSI
layer with interrupts disabled. As a result, the mc_io used in
fsl_mc_msi_write_msg needs to be an atomic mc_io.

Signed-off-by: J. German Rivera <German.Rivera@...escale.com>
---
CHANGE HISTORY

Changes in v4: none

Changes in v3: none

Changes in v2: none

 drivers/staging/fsl-mc/bus/dprc-driver.c | 4 +++-
 drivers/staging/fsl-mc/bus/mc-bus.c      | 3 ++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/fsl-mc/bus/dprc-driver.c b/drivers/staging/fsl-mc/bus/dprc-driver.c
index 2c4cd70..767d437 100644
--- a/drivers/staging/fsl-mc/bus/dprc-driver.c
+++ b/drivers/staging/fsl-mc/bus/dprc-driver.c
@@ -396,7 +396,9 @@ static int dprc_probe(struct fsl_mc_device *mc_dev)
 		error = fsl_create_mc_io(&mc_dev->dev,
 					 mc_dev->regions[0].start,
 					 region_size,
-					 NULL, 0, &mc_dev->mc_io);
+					 NULL,
+					 FSL_MC_IO_ATOMIC_CONTEXT_PORTAL,
+					 &mc_dev->mc_io);
 		if (error < 0)
 			return error;
 	}
diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c
index 84db55b..d34f1af 100644
--- a/drivers/staging/fsl-mc/bus/mc-bus.c
+++ b/drivers/staging/fsl-mc/bus/mc-bus.c
@@ -702,7 +702,8 @@ static int fsl_mc_bus_probe(struct platform_device *pdev)
 	mc_portal_phys_addr = res.start;
 	mc_portal_size = resource_size(&res);
 	error = fsl_create_mc_io(&pdev->dev, mc_portal_phys_addr,
-				 mc_portal_size, NULL, 0, &mc_io);
+				 mc_portal_size, NULL,
+				 FSL_MC_IO_ATOMIC_CONTEXT_PORTAL, &mc_io);
 	if (error < 0)
 		return error;

--
2.3.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/