linux-kernel - [PATCH v2 07/21] pinctrl: mvebu: move generic group name generation

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:	Tue, 28 Jan 2014 01:39:19 +0100
From:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	Jason Cooper <jason@...edaemon.net>, Andrew Lunn <andrew@...n.ch>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 07/21] pinctrl: mvebu: move generic group name generation

MVEBU SoC pinctrl allows SoC specific drivers to pass a range of mpp
pins without a corresponding name. Each pin in this range is then
translated into a single-pin group with an auto-generated name. To allow
some redesign of the driver, move name generation for those pin ranges
down to where the groups are created.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
---
Cc: Jason Cooper <jason@...edaemon.net>
Cc: Andrew Lunn <andrew@...n.ch>
Cc: Gregory Clement <gregory.clement@...e-electrons.com>
Cc: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Cc: Linus Walleij <linus.walleij@...aro.org>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
---
 drivers/pinctrl/mvebu/pinctrl-mvebu.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/pinctrl/mvebu/pinctrl-mvebu.c b/drivers/pinctrl/mvebu/pinctrl-mvebu.c
index 90c35b20a7af..375666b0abc3 100644
--- a/drivers/pinctrl/mvebu/pinctrl-mvebu.c
+++ b/drivers/pinctrl/mvebu/pinctrl-mvebu.c
@@ -631,7 +631,6 @@ int mvebu_pinctrl_probe(struct platform_device *pdev, void __iomem *base)
 	pctl->desc.npins = 0;
 	for (n = 0; n < soc->ncontrols; n++) {
 		struct mvebu_mpp_ctrl *ctrl = &soc->controls[n];
-		char *names;
 
 		pctl->desc.npins += ctrl->npins;
 		/* initial control pins */
@@ -649,14 +648,6 @@ int mvebu_pinctrl_probe(struct platform_device *pdev, void __iomem *base)
 		}
 
 		/* generic mvebu register control */
-		names = devm_kzalloc(&pdev->dev, ctrl->npins * 8, GFP_KERNEL);
-		if (!names) {
-			dev_err(&pdev->dev, "failed to alloc mpp names\n");
-			return -ENOMEM;
-		}
-		for (k = 0; k < ctrl->npins; k++)
-			sprintf(names + 8*k, "mpp%d", ctrl->pid+k);
-		ctrl->name = names;
 		pctl->num_groups += ctrl->npins;
 	}
 
@@ -689,7 +680,18 @@ int mvebu_pinctrl_probe(struct platform_device *pdev, void __iomem *base)
 		pctl->groups[gid].npins = ctrl->npins;
 
 		/* generic mvebu register control maps to a number of groups */
-		if (!ctrl->mpp_get && !ctrl->mpp_set) {
+		if (!ctrl->name) {
+			char *names = devm_kzalloc(&pdev->dev,
+						   ctrl->npins * 8, GFP_KERNEL);
+			if (!names) {
+				dev_err(&pdev->dev, "failed to alloc mpp names\n");
+				return -ENOMEM;
+			}
+			for (k = 0; k < ctrl->npins; k++)
+				sprintf(names + 8*k, "mpp%d", ctrl->pid+k);
+			ctrl->name = names;
+
+			pctl->groups[gid].name = &ctrl->name[0];
 			pctl->groups[gid].npins = 1;
 
 			for (k = 1; k < ctrl->npins; k++) {
-- 
1.8.5.2

--
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/