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accel/habanalabs: print task name and request code upon ioctl failure

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When an ioctl fails, it is useful to know what is the task command name
and the full ioctl request code, in addition to the task pid and the
ioctl number.
Add the additional information to the relevant debug error prints.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Tomer Tayar 2023-05-16 11:10:52 +03:00 committed by Oded Gabbay
parent c6a4f256ae
commit 7dccb064a7
1 changed files with 17 additions and 7 deletions
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24
drivers/accel/habanalabs/common/habanalabs_ioctl.c
View file

@ -1194,9 +1194,13 @@ static long _hl_ioctl(struct file *filep, unsigned int cmd, unsigned long arg,
retcode = -EFAULT;
out_err:
if (retcode)
dev_dbg_ratelimited(dev, "error in ioctl: pid=%d, cmd=0x%02x, nr=0x%02x\n",
task_pid_nr(current), cmd, nr);
if (retcode) {
char task_comm[TASK_COMM_LEN];
dev_dbg_ratelimited(dev,
"error in ioctl: pid=%d, comm=\"%s\", cmd=%#010x, nr=%#04x\n",
task_pid_nr(current), get_task_comm(task_comm, current), cmd, nr);
}
if (kdata != stack_kdata)
kfree(kdata);
@ -1219,8 +1223,11 @@ long hl_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
if ((nr >= HL_COMMAND_START) && (nr < HL_COMMAND_END)) {
ioctl = &hl_ioctls[nr];
} else {
dev_dbg_ratelimited(hdev->dev, "invalid ioctl: pid=%d, nr=0x%02x\n",
task_pid_nr(current), nr);
char task_comm[TASK_COMM_LEN];
dev_dbg_ratelimited(hdev->dev,
"invalid ioctl: pid=%d, comm=\"%s\", cmd=%#010x, nr=%#04x\n",
task_pid_nr(current), get_task_comm(task_comm, current), cmd, nr);
return -ENOTTY;
}
@ -1242,8 +1249,11 @@ long hl_ioctl_control(struct file *filep, unsigned int cmd, unsigned long arg)
if (nr == _IOC_NR(HL_IOCTL_INFO)) {
ioctl = &hl_ioctls_control[nr];
} else {
dev_dbg_ratelimited(hdev->dev_ctrl, "invalid ioctl: pid=%d, nr=0x%02x\n",
task_pid_nr(current), nr);
char task_comm[TASK_COMM_LEN];
dev_dbg_ratelimited(hdev->dev_ctrl,
"invalid ioctl: pid=%d, comm=\"%s\", cmd=%#010x, nr=%#04x\n",
task_pid_nr(current), get_task_comm(task_comm, current), cmd, nr);
return -ENOTTY;
}