Re: [PATCH v4 4/4] Adds hardware supported cross timestamp

kbuild test robot
2015-10-13T02:11:55Z

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Hi Christopher,

[auto build test ERROR on net/master -- if it's inappropriate base, please suggest rules for selecting the more suitable base]

url: https://github.com/0day-ci/linux/commits/Christopher-S-Hall/Patchset-enabling-hardware-based-cross-timestamps-for-next-gen-Intel-platforms/20151013-095135
config: x86_64-randconfig-x010-10130227 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All error/warnings (new ones prefixed by >>):

drivers/net/ethernet/intel/e1000e/ptp.c: In function 'e1000e_phc_get_ts':
>> drivers/net/ethernet/intel/e1000e/ptp.c:107:61: error: dereferencing pointer to incomplete type 'struct correlated_ts'
struct e1000_adapter *adapter = (struct e1000_adapter *)cts->private;
^
drivers/net/ethernet/intel/e1000e/ptp.c: In function 'e1000e_phc_getsynctime':
>> drivers/net/ethernet/intel/e1000e/ptp.c:155:23: error: storage size of 'art_correlated_ts' isn't known
struct correlated_ts art_correlated_ts;
^
>> drivers/net/ethernet/intel/e1000e/ptp.c:155:23: warning: unused variable 'art_correlated_ts' [-Wunused-variable]

vim +107 drivers/net/ethernet/intel/e1000e/ptp.c

101 }
102
103 #define MAX_HW_WAIT_COUNT (3)
104
105 static int e1000e_phc_get_ts(struct correlated_ts *cts)
106 {
> 107 struct e1000_adapter *adapter = (struct e1000_adapter *)cts->private;
108 struct e1000_hw *hw = &adapter->hw;
109 int i;
110 u32 tsync_ctrl;
111 int ret;
112
113 tsync_ctrl = er32(TSYNCTXCTL);
114 tsync_ctrl |= E1000_TSYNCTXCTL_START_SYNC |
115 E1000_TSYNCTXCTL_MAX_ALLOWED_DLY_MASK;
116 ew32(TSYNCTXCTL, tsync_ctrl);
117 for (i = 0; i < MAX_HW_WAIT_COUNT; ++i) {
118 udelay(1);
119 tsync_ctrl = er32(TSYNCTXCTL);
120 if (tsync_ctrl & E1000_TSYNCTXCTL_SYNC_COMP)
121 break;
122 }
123
124 if (i == MAX_HW_WAIT_COUNT) {
125 ret = -ETIMEDOUT;
126 } else {
127 ret = 0;
128 cts->system_ts = er32(PLTSTMPH);
129 cts->system_ts <<= 32;
130 cts->system_ts |= er32(PLTSTMPL);
131 cts->device_ts = er32(SYSSTMPH);
132 cts->device_ts <<= 32;
133 cts->device_ts |= er32(SYSSTMPL);
134 }
135
136 return ret;
137 }
138
139 /**
140 * e1000e_phc_getsynctime - Reads the current time from the hardware clock and
141 * correlated system time
142 * @ptp: ptp clock structure
143 * @devts: timespec structure to hold the current device time value
144 * @systs: timespec structure to hold the current system time value
145 *
146 * Read device and system (ART) clock simultaneously and return the correct
147 * clock values in ns after converting into a struct timespec.
148 **/
149 static int e1000e_phc_getsynctime(struct ptp_clock_info *ptp, u64 *dev,
150 u64 *sys )
151 {
152 struct e1000_adapter *adapter = container_of(ptp, struct e1000_adapter,
153 ptp_clock_info);
154 unsigned long flags;
> 155 struct correlated_ts art_correlated_ts;
156 int ret;
157
158 art_correlated_ts.get_ts = e1000e_phc_get_ts;

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