From 275e64decc01acf4d2f6b6ad1b83f1c4bd9033e5 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 21 May 2008 12:52:33 -0700 Subject: device create: dca: convert device_create to device_create_drvdata device_create() is race-prone, so use the race-free device_create_drvdata() instead as device_create() is going away. Signed-off-by: Greg Kroah-Hartman --- drivers/dca/dca-sysfs.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/dca/dca-sysfs.c') diff --git a/drivers/dca/dca-sysfs.c b/drivers/dca/dca-sysfs.c index 011328faa5f2..9a70377bfb34 100644 --- a/drivers/dca/dca-sysfs.c +++ b/drivers/dca/dca-sysfs.c @@ -14,8 +14,9 @@ int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot) { struct device *cd; - cd = device_create(dca_class, dca->cd, MKDEV(0, slot + 1), - "requester%d", slot); + cd = device_create_drvdata(dca_class, dca->cd, + MKDEV(0, slot + 1), NULL, + "requester%d", slot); if (IS_ERR(cd)) return PTR_ERR(cd); return 0; @@ -46,7 +47,8 @@ idr_try_again: return err; } - cd = device_create(dca_class, dev, MKDEV(0, 0), "dca%d", dca->id); + cd = device_create_drvdata(dca_class, dev, MKDEV(0, 0), NULL, + "dca%d", dca->id); if (IS_ERR(cd)) { spin_lock(&dca_idr_lock); idr_remove(&dca_idr, dca->id); -- cgit v1.2.3 From 7f1b358a236ee9c19657a619ac6f2dcabcaa0924 Mon Sep 17 00:00:00 2001 From: Maciej Sosnowski Date: Tue, 22 Jul 2008 17:30:57 -0700 Subject: I/OAT: I/OAT version 3.0 support This patch adds to ioatdma and dca modules support for Intel I/OAT DMA engine ver.3 (aka CB3 device). The main features of I/OAT ver.3 are: * 8 single channel DMA devices (8 channels total) * 8 DCA providers, each can accept 2 requesters * 8-bit TAG values and 32-bit extended APIC IDs Signed-off-by: Maciej Sosnowski Signed-off-by: Dan Williams --- drivers/dca/dca-sysfs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/dca/dca-sysfs.c') diff --git a/drivers/dca/dca-sysfs.c b/drivers/dca/dca-sysfs.c index 011328faa5f2..3d47e9d8e34f 100644 --- a/drivers/dca/dca-sysfs.c +++ b/drivers/dca/dca-sysfs.c @@ -13,9 +13,10 @@ static spinlock_t dca_idr_lock; int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot) { struct device *cd; + static int req_count; cd = device_create(dca_class, dca->cd, MKDEV(0, slot + 1), - "requester%d", slot); + "requester%d", req_count++); if (IS_ERR(cd)) return PTR_ERR(cd); return 0; -- cgit v1.2.3