* [PATCH v2] net: macb: Added PCI wrapper for Platform Driver.
[not found] <1481537461-9587-1-git-send-email-bfolta@cadence.com>
@ 2016-12-12 10:29 ` Bartosz Folta
2016-12-12 14:50 ` kbuild test robot
2016-12-12 15:00 ` kbuild test robot
0 siblings, 2 replies; 3+ messages in thread
From: Bartosz Folta @ 2016-12-12 10:29 UTC (permalink / raw)
To: Nicolas Ferre, David S. Miller, Niklas Cassel, Alexandre Torgue,
Satanand Burla, Raghu Vatsavayi, Simon Horman, linux-kernel,
netdev
Cc: Bartosz Folta, Rafal Ozieblo
There are hardware PCI implementations of Cadence GEM network
controller. This patch will allow to use such hardware with reuse of
existing Platform Driver.
Signed-off-by: Bartosz Folta <bfolta@cadence.com>
---
Changed in v2:
Respin to net-next. Changed patch formatting.
---
drivers/net/ethernet/cadence/Kconfig | 9 ++
drivers/net/ethernet/cadence/Makefile | 1 +
drivers/net/ethernet/cadence/macb.c | 31 +++++--
drivers/net/ethernet/cadence/macb_pci.c | 152 ++++++++++++++++++++++++++++++++
include/linux/platform_data/macb.h | 6 ++
5 files changed, 194 insertions(+), 5 deletions(-)
create mode 100644 drivers/net/ethernet/cadence/macb_pci.c
diff --git a/drivers/net/ethernet/cadence/Kconfig b/drivers/net/ethernet/cadence/Kconfig
index f0bcb15..00d833e 100644
--- a/drivers/net/ethernet/cadence/Kconfig
+++ b/drivers/net/ethernet/cadence/Kconfig
@@ -31,4 +31,13 @@ config MACB
To compile this driver as a module, choose M here: the module
will be called macb.
+config MACB_PCI
+ tristate "Cadence PCI MACB/GEM support"
+ depends on MACB
+ ---help---
+ This is PCI wrapper for MACB driver.
+
+ To compile this driver as a module, choose M here: the module
+ will be called macb_pci.
+
endif # NET_CADENCE
diff --git a/drivers/net/ethernet/cadence/Makefile b/drivers/net/ethernet/cadence/Makefile
index 91f79b1..4ba7559 100644
--- a/drivers/net/ethernet/cadence/Makefile
+++ b/drivers/net/ethernet/cadence/Makefile
@@ -3,3 +3,4 @@
#
obj-$(CONFIG_MACB) += macb.o
+obj-$(CONFIG_MACB_PCI) += macb_pci.o
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index 538544a..c0fb80a 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -404,6 +404,8 @@ static int macb_mii_probe(struct net_device *dev)
phy_irq = gpio_to_irq(pdata->phy_irq_pin);
phydev->irq = (phy_irq < 0) ? PHY_POLL : phy_irq;
}
+ } else {
+ phydev->irq = PHY_POLL;
}
/* attach the mac to the phy */
@@ -482,6 +484,9 @@ static int macb_mii_init(struct macb *bp)
goto err_out_unregister_bus;
}
} else {
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ bp->mii_bus->irq[i] = PHY_POLL;
+
if (pdata)
bp->mii_bus->phy_mask = pdata->phy_mask;
@@ -2523,16 +2528,24 @@ static int macb_clk_init(struct platform_device *pdev, struct clk **pclk,
struct clk **hclk, struct clk **tx_clk,
struct clk **rx_clk)
{
+ struct macb_platform_data *pdata;
int err;
- *pclk = devm_clk_get(&pdev->dev, "pclk");
+ pdata = dev_get_platdata(&pdev->dev);
+ if (pdata) {
+ *pclk = pdata->pclk;
+ *hclk = pdata->hclk;
+ } else {
+ *pclk = devm_clk_get(&pdev->dev, "pclk");
+ *hclk = devm_clk_get(&pdev->dev, "hclk");
+ }
+
if (IS_ERR(*pclk)) {
err = PTR_ERR(*pclk);
dev_err(&pdev->dev, "failed to get macb_clk (%u)\n", err);
return err;
}
- *hclk = devm_clk_get(&pdev->dev, "hclk");
if (IS_ERR(*hclk)) {
err = PTR_ERR(*hclk);
dev_err(&pdev->dev, "failed to get hclk (%u)\n", err);
@@ -3107,15 +3120,23 @@ static int at91ether_init(struct platform_device *pdev)
MODULE_DEVICE_TABLE(of, macb_dt_ids);
#endif /* CONFIG_OF */
+static const struct macb_config default_gem_config = {
+ .caps = MACB_CAPS_GIGABIT_MODE_AVAILABLE | MACB_CAPS_JUMBO,
+ .dma_burst_length = 16,
+ .clk_init = macb_clk_init,
+ .init = macb_init,
+ .jumbo_max_len = 10240,
+};
+
static int macb_probe(struct platform_device *pdev)
{
+ const struct macb_config *macb_config = &default_gem_config;
int (*clk_init)(struct platform_device *, struct clk **,
struct clk **, struct clk **, struct clk **)
- = macb_clk_init;
- int (*init)(struct platform_device *) = macb_init;
+ = macb_config->clk_init;
+ int (*init)(struct platform_device *) = macb_config->init;
struct device_node *np = pdev->dev.of_node;
struct device_node *phy_node;
- const struct macb_config *macb_config = NULL;
struct clk *pclk, *hclk = NULL, *tx_clk = NULL, *rx_clk = NULL;
unsigned int queue_mask, num_queues;
struct macb_platform_data *pdata;
diff --git a/drivers/net/ethernet/cadence/macb_pci.c b/drivers/net/ethernet/cadence/macb_pci.c
new file mode 100644
index 0000000..b440960
--- /dev/null
+++ b/drivers/net/ethernet/cadence/macb_pci.c
@@ -0,0 +1,152 @@
+/**
+ * macb_pci.c - Cadence GEM PCI wrapper.
+ *
+ * Copyright (C) 2016 Cadence Design Systems - http://www.cadence.com
+ *
+ * Authors: Rafal Ozieblo <rafalo@cadence.com>
+ * Bartosz Folta <bfolta@cadence.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/etherdevice.h>
+#include <linux/pci.h>
+#include <linux/platform_data/macb.h>
+#include <linux/platform_device.h>
+#include "macb.h"
+
+#define PCI_DRIVER_NAME "macb_pci"
+#define PLAT_DRIVER_NAME "macb"
+
+#define CDNS_VENDOR_ID 0x17cd
+#define CDNS_DEVICE_ID 0xe007
+
+#define GEM_PCLK_RATE 50000000
+#define GEM_HCLK_RATE 50000000
+
+static int macb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ int err;
+ struct platform_device *plat_dev;
+ struct platform_device_info plat_info;
+ struct macb_platform_data plat_data;
+ struct resource res[2];
+
+ /* sanity check */
+ if (!id)
+ return -EINVAL;
+
+ /* enable pci device */
+ err = pci_enable_device(pdev);
+ if (err < 0) {
+ dev_err(&pdev->dev, "Enabling PCI device has failed: 0x%04X",
+ err);
+ return -EACCES;
+ }
+
+ pci_set_master(pdev);
+
+ /* set up resources */
+ memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
+ res[0].start = pdev->resource[0].start;
+ res[0].end = pdev->resource[0].end;
+ res[0].name = PCI_DRIVER_NAME;
+ res[0].flags = IORESOURCE_MEM;
+ res[1].start = pdev->irq;
+ res[1].name = PCI_DRIVER_NAME;
+ res[1].flags = IORESOURCE_IRQ;
+
+ dev_info(&pdev->dev, "EMAC physical base addr = 0x%p\n",
+ (void *)(uintptr_t)pci_resource_start(pdev, 0));
+
+ /* set up macb platform data */
+ memset(&plat_data, 0, sizeof(plat_data));
+
+ /* initialize clocks */
+ plat_data.pclk = clk_register_fixed_rate(&pdev->dev, "pclk", NULL, 0,
+ GEM_PCLK_RATE);
+ if (IS_ERR(plat_data.pclk)) {
+ err = PTR_ERR(plat_data.pclk);
+ goto err_pclk_register;
+ }
+
+ plat_data.hclk = clk_register_fixed_rate(&pdev->dev, "hclk", NULL, 0,
+ GEM_HCLK_RATE);
+ if (IS_ERR(plat_data.hclk)) {
+ err = PTR_ERR(plat_data.hclk);
+ goto err_hclk_register;
+ }
+
+ /* set up platform device info */
+ memset(&plat_info, 0, sizeof(plat_info));
+ plat_info.parent = &pdev->dev;
+ plat_info.fwnode = pdev->dev.fwnode;
+ plat_info.name = PLAT_DRIVER_NAME;
+ plat_info.id = pdev->devfn;
+ plat_info.res = res;
+ plat_info.num_res = ARRAY_SIZE(res);
+ plat_info.data = &plat_data;
+ plat_info.size_data = sizeof(plat_data);
+ plat_info.dma_mask = DMA_BIT_MASK(32);
+
+ /* register platform device */
+ plat_dev = platform_device_register_full(&plat_info);
+ if (IS_ERR(plat_dev)) {
+ err = PTR_ERR(plat_dev);
+ goto err_plat_dev_register;
+ }
+
+ pci_set_drvdata(pdev, plat_dev);
+
+ return 0;
+
+err_plat_dev_register:
+ clk_unregister(plat_data.hclk);
+
+err_hclk_register:
+ clk_unregister(plat_data.pclk);
+
+err_pclk_register:
+ pci_disable_device(pdev);
+ return err;
+}
+
+void macb_remove(struct pci_dev *pdev)
+{
+ struct platform_device *plat_dev = pci_get_drvdata(pdev);
+ struct macb_platform_data *plat_data = dev_get_platdata(&plat_dev->dev);
+
+ platform_device_unregister(plat_dev);
+ pci_disable_device(pdev);
+ clk_unregister(plat_data->pclk);
+ clk_unregister(plat_data->hclk);
+}
+
+static struct pci_device_id dev_id_table[] = {
+ { PCI_DEVICE(CDNS_VENDOR_ID, CDNS_DEVICE_ID), },
+ { 0, }
+};
+
+static struct pci_driver macb_pci_driver = {
+ .name = PCI_DRIVER_NAME,
+ .id_table = dev_id_table,
+ .probe = macb_probe,
+ .remove = macb_remove,
+};
+
+module_pci_driver(macb_pci_driver);
+MODULE_DEVICE_TABLE(pci, dev_id_table);
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Cadence NIC PCI wrapper");
diff --git a/include/linux/platform_data/macb.h b/include/linux/platform_data/macb.h
index 21b15f6..7815d50 100644
--- a/include/linux/platform_data/macb.h
+++ b/include/linux/platform_data/macb.h
@@ -8,6 +8,8 @@
#ifndef __MACB_PDATA_H__
#define __MACB_PDATA_H__
+#include <linux/clk.h>
+
/**
* struct macb_platform_data - platform data for MACB Ethernet
* @phy_mask: phy mask passed when register the MDIO bus
@@ -15,12 +17,16 @@
* @phy_irq_pin: PHY IRQ
* @is_rmii: using RMII interface?
* @rev_eth_addr: reverse Ethernet address byte order
+ * @pclk: platform clock
+ * @hclk: AHB clock
*/
struct macb_platform_data {
u32 phy_mask;
int phy_irq_pin;
u8 is_rmii;
u8 rev_eth_addr;
+ struct clk *pclk;
+ struct clk *hclk;
};
#endif /* __MACB_PDATA_H__ */
--
1.9.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2] net: macb: Added PCI wrapper for Platform Driver.
2016-12-12 10:29 ` [PATCH v2] net: macb: Added PCI wrapper for Platform Driver Bartosz Folta
@ 2016-12-12 14:50 ` kbuild test robot
2016-12-12 15:00 ` kbuild test robot
1 sibling, 0 replies; 3+ messages in thread
From: kbuild test robot @ 2016-12-12 14:50 UTC (permalink / raw)
To: Bartosz Folta
Cc: kbuild-all, Nicolas Ferre, David S. Miller, Niklas Cassel,
Alexandre Torgue, Satanand Burla, Raghu Vatsavayi, Simon Horman,
linux-kernel, netdev, Bartosz Folta, Rafal Ozieblo
[-- Attachment #1: Type: text/plain, Size: 3609 bytes --]
Hi Bartosz,
[auto build test ERROR on net-next/master]
[also build test ERROR on v4.9 next-20161209]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Bartosz-Folta/net-macb-Added-PCI-wrapper-for-Platform-Driver/20161212-220228
config: alpha-allyesconfig (attached as .config)
compiler: alpha-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=alpha
All error/warnings (new ones prefixed by >>):
drivers/net/ethernet/cadence/macb_pci.c: In function 'macb_probe':
>> drivers/net/ethernet/cadence/macb_pci.c:78:19: error: implicit declaration of function 'clk_register_fixed_rate' [-Werror=implicit-function-declaration]
plat_data.pclk = clk_register_fixed_rate(&pdev->dev, "pclk", NULL, 0,
^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/net/ethernet/cadence/macb_pci.c:78:17: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
plat_data.pclk = clk_register_fixed_rate(&pdev->dev, "pclk", NULL, 0,
^
drivers/net/ethernet/cadence/macb_pci.c:85:17: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
plat_data.hclk = clk_register_fixed_rate(&pdev->dev, "hclk", NULL, 0,
^
>> drivers/net/ethernet/cadence/macb_pci.c:116:2: error: implicit declaration of function 'clk_unregister' [-Werror=implicit-function-declaration]
clk_unregister(plat_data.hclk);
^~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +/clk_register_fixed_rate +78 drivers/net/ethernet/cadence/macb_pci.c
72 (void *)(uintptr_t)pci_resource_start(pdev, 0));
73
74 /* set up macb platform data */
75 memset(&plat_data, 0, sizeof(plat_data));
76
77 /* initialize clocks */
> 78 plat_data.pclk = clk_register_fixed_rate(&pdev->dev, "pclk", NULL, 0,
79 GEM_PCLK_RATE);
80 if (IS_ERR(plat_data.pclk)) {
81 err = PTR_ERR(plat_data.pclk);
82 goto err_pclk_register;
83 }
84
85 plat_data.hclk = clk_register_fixed_rate(&pdev->dev, "hclk", NULL, 0,
86 GEM_HCLK_RATE);
87 if (IS_ERR(plat_data.hclk)) {
88 err = PTR_ERR(plat_data.hclk);
89 goto err_hclk_register;
90 }
91
92 /* set up platform device info */
93 memset(&plat_info, 0, sizeof(plat_info));
94 plat_info.parent = &pdev->dev;
95 plat_info.fwnode = pdev->dev.fwnode;
96 plat_info.name = PLAT_DRIVER_NAME;
97 plat_info.id = pdev->devfn;
98 plat_info.res = res;
99 plat_info.num_res = ARRAY_SIZE(res);
100 plat_info.data = &plat_data;
101 plat_info.size_data = sizeof(plat_data);
102 plat_info.dma_mask = DMA_BIT_MASK(32);
103
104 /* register platform device */
105 plat_dev = platform_device_register_full(&plat_info);
106 if (IS_ERR(plat_dev)) {
107 err = PTR_ERR(plat_dev);
108 goto err_plat_dev_register;
109 }
110
111 pci_set_drvdata(pdev, plat_dev);
112
113 return 0;
114
115 err_plat_dev_register:
> 116 clk_unregister(plat_data.hclk);
117
118 err_hclk_register:
119 clk_unregister(plat_data.pclk);
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 48070 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2] net: macb: Added PCI wrapper for Platform Driver.
2016-12-12 10:29 ` [PATCH v2] net: macb: Added PCI wrapper for Platform Driver Bartosz Folta
2016-12-12 14:50 ` kbuild test robot
@ 2016-12-12 15:00 ` kbuild test robot
1 sibling, 0 replies; 3+ messages in thread
From: kbuild test robot @ 2016-12-12 15:00 UTC (permalink / raw)
To: Bartosz Folta
Cc: kbuild-all, Nicolas Ferre, David S. Miller, Niklas Cassel,
Alexandre Torgue, Satanand Burla, Raghu Vatsavayi, Simon Horman,
linux-kernel, netdev, Bartosz Folta, Rafal Ozieblo
[-- Attachment #1: Type: text/plain, Size: 5003 bytes --]
Hi Bartosz,
[auto build test ERROR on net-next/master]
[also build test ERROR on v4.9 next-20161209]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Bartosz-Folta/net-macb-Added-PCI-wrapper-for-Platform-Driver/20161212-220228
config: blackfin-allyesconfig (attached as .config)
compiler: bfin-uclinux-gcc (GCC) 6.2.0
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=blackfin
All error/warnings (new ones prefixed by >>):
drivers/net/ethernet/cadence/macb_pci.c: In function 'macb_probe':
drivers/net/ethernet/cadence/macb_pci.c:78:19: error: implicit declaration of function 'clk_register_fixed_rate' [-Werror=implicit-function-declaration]
plat_data.pclk = clk_register_fixed_rate(&pdev->dev, "pclk", NULL, 0,
^~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/cadence/macb_pci.c:78:17: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
plat_data.pclk = clk_register_fixed_rate(&pdev->dev, "pclk", NULL, 0,
^
drivers/net/ethernet/cadence/macb_pci.c:85:17: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
plat_data.hclk = clk_register_fixed_rate(&pdev->dev, "hclk", NULL, 0,
^
drivers/net/ethernet/cadence/macb_pci.c:116:2: error: implicit declaration of function 'clk_unregister' [-Werror=implicit-function-declaration]
clk_unregister(plat_data.hclk);
^~~~~~~~~~~~~~
drivers/net/ethernet/cadence/macb_pci.c: At top level:
>> drivers/net/ethernet/cadence/macb_pci.c:149:1: warning: data definition has no type or storage class
module_pci_driver(macb_pci_driver);
^~~~~~~~~~~~~~~~~
>> drivers/net/ethernet/cadence/macb_pci.c:149:1: error: type defaults to 'int' in declaration of 'module_pci_driver' [-Werror=implicit-int]
>> drivers/net/ethernet/cadence/macb_pci.c:149:1: warning: parameter names (without types) in function declaration
drivers/net/ethernet/cadence/macb_pci.c:142:26: warning: 'macb_pci_driver' defined but not used [-Wunused-variable]
static struct pci_driver macb_pci_driver = {
^~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +149 drivers/net/ethernet/cadence/macb_pci.c
79 GEM_PCLK_RATE);
80 if (IS_ERR(plat_data.pclk)) {
81 err = PTR_ERR(plat_data.pclk);
82 goto err_pclk_register;
83 }
84
> 85 plat_data.hclk = clk_register_fixed_rate(&pdev->dev, "hclk", NULL, 0,
86 GEM_HCLK_RATE);
87 if (IS_ERR(plat_data.hclk)) {
88 err = PTR_ERR(plat_data.hclk);
89 goto err_hclk_register;
90 }
91
92 /* set up platform device info */
93 memset(&plat_info, 0, sizeof(plat_info));
94 plat_info.parent = &pdev->dev;
95 plat_info.fwnode = pdev->dev.fwnode;
96 plat_info.name = PLAT_DRIVER_NAME;
97 plat_info.id = pdev->devfn;
98 plat_info.res = res;
99 plat_info.num_res = ARRAY_SIZE(res);
100 plat_info.data = &plat_data;
101 plat_info.size_data = sizeof(plat_data);
102 plat_info.dma_mask = DMA_BIT_MASK(32);
103
104 /* register platform device */
105 plat_dev = platform_device_register_full(&plat_info);
106 if (IS_ERR(plat_dev)) {
107 err = PTR_ERR(plat_dev);
108 goto err_plat_dev_register;
109 }
110
111 pci_set_drvdata(pdev, plat_dev);
112
113 return 0;
114
115 err_plat_dev_register:
> 116 clk_unregister(plat_data.hclk);
117
118 err_hclk_register:
119 clk_unregister(plat_data.pclk);
120
121 err_pclk_register:
122 pci_disable_device(pdev);
123 return err;
124 }
125
126 void macb_remove(struct pci_dev *pdev)
127 {
128 struct platform_device *plat_dev = pci_get_drvdata(pdev);
129 struct macb_platform_data *plat_data = dev_get_platdata(&plat_dev->dev);
130
131 platform_device_unregister(plat_dev);
132 pci_disable_device(pdev);
133 clk_unregister(plat_data->pclk);
134 clk_unregister(plat_data->hclk);
135 }
136
137 static struct pci_device_id dev_id_table[] = {
138 { PCI_DEVICE(CDNS_VENDOR_ID, CDNS_DEVICE_ID), },
139 { 0, }
140 };
141
142 static struct pci_driver macb_pci_driver = {
143 .name = PCI_DRIVER_NAME,
144 .id_table = dev_id_table,
145 .probe = macb_probe,
146 .remove = macb_remove,
147 };
148
> 149 module_pci_driver(macb_pci_driver);
150 MODULE_DEVICE_TABLE(pci, dev_id_table);
151 MODULE_LICENSE("GPL");
152 MODULE_DESCRIPTION("Cadence NIC PCI wrapper");
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 42460 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2016-12-12 15:01 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <1481537461-9587-1-git-send-email-bfolta@cadence.com>
2016-12-12 10:29 ` [PATCH v2] net: macb: Added PCI wrapper for Platform Driver Bartosz Folta
2016-12-12 14:50 ` kbuild test robot
2016-12-12 15:00 ` kbuild test robot
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