Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753484Ab1BBK5b (ORCPT ); Wed, 2 Feb 2011 05:57:31 -0500 Received: from moutng.kundenserver.de ([212.227.126.171]:50280 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753113Ab1BBK5a (ORCPT ); Wed, 2 Feb 2011 05:57:30 -0500 From: Bernhard Walle To: dbrownell@users.sourceforge.net, grant.likely@secretlab.ca Cc: spi-devel-general@lists.sourceforge.net, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, arnd@arndb.de Subject: [PATCH] spi: spidev: Add 32 bit compat ioctl() Date: Wed, 2 Feb 2011 11:57:15 +0100 Message-Id: <1296644235-23933-1-git-send-email-walle@corscience.de> X-Mailer: git-send-email 1.7.1 X-Provags-ID: V02:K0:zRe9rdUCRMj8i5OEK2M572VanoWeuD2VKgkH5KZ8QXm a/nHJOmXzTuhFszL0B5oWtV3cp7HwP8/kFAZdsfNV7UaD66sSb acxvQOXArwa0eACDBK5YCEXzyL2q6DlpjKSH5P1STamRxAp9Aq kr8s8VW2U5SzrwKPIFLw8trVJz58E9yfBOcq72BJG81T/vP/63 FJGeKMkI0D0IwuFhv2yeg== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1625 Lines: 50 Add the compat_ioctl for operations on /dev/spi* so that 32 bit userspace applications can access SPI. As far as I can see all data structure are already prepared for that, so no additional conversion has to be done. My use case is MIPS with N32 userspace ABI and toolchain, and that was also the platform where I tested it successfully (Cavium Octeon). Signed-off-by: Bernhard Walle --- drivers/spi/spidev.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index 4e6245e..95c3f10 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -471,6 +471,14 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return retval; } +#ifdef CONFIG_COMPAT +static long +spidev_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) +{ + return spidev_ioctl(filp, cmd, (unsigned long)compat_ptr(arg)); +} +#endif /* CONFIG_COMPAT */ + static int spidev_open(struct inode *inode, struct file *filp) { struct spidev_data *spidev; @@ -543,6 +551,9 @@ static const struct file_operations spidev_fops = { .write = spidev_write, .read = spidev_read, .unlocked_ioctl = spidev_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = spidev_compat_ioctl, +#endif .open = spidev_open, .release = spidev_release, .llseek = no_llseek, -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/