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Groups > linux.kernel > #1400255

[PATCH v2 5/5] IB/hfi1: Add trace message in user IOCTL handling

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Add a trace message to HFI1s user IOCTL handling. This allows debugging
of which IOCTLs are being handled by the driver.

Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
---
 drivers/staging/rdma/hfi1/file_ops.c |    2 ++
 drivers/staging/rdma/hfi1/trace.c    |    1 +
 drivers/staging/rdma/hfi1/trace.h    |    1 +
 3 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/staging/rdma/hfi1/file_ops.c b/drivers/staging/rdma/hfi1/file_ops.c
index 120b680..bfcf1a2 100644
--- a/drivers/staging/rdma/hfi1/file_ops.c
+++ b/drivers/staging/rdma/hfi1/file_ops.c
@@ -195,6 +195,8 @@ static long hfi1_file_ioctl(struct file *fp, unsigned int cmd,
 	if (ret)
 		return ret;
 
+	hfi1_cdbg(IOCTL, "IOCTL recv: 0x%x", cmd);
+
 	switch (cmd) {
 	case HFI1_IOCTL_ASSIGN_CTXT:
 		uctxt_required = 0; /* assigned user context not required */
diff --git a/drivers/staging/rdma/hfi1/trace.c b/drivers/staging/rdma/hfi1/trace.c
index 8b62fef..caddb2a 100644
--- a/drivers/staging/rdma/hfi1/trace.c
+++ b/drivers/staging/rdma/hfi1/trace.c
@@ -233,3 +233,4 @@ __hfi1_trace_fn(FIRMWARE);
 __hfi1_trace_fn(RCVCTRL);
 __hfi1_trace_fn(TID);
 __hfi1_trace_fn(MMU);
+__hfi1_trace_fn(IOCTL);
diff --git a/drivers/staging/rdma/hfi1/trace.h b/drivers/staging/rdma/hfi1/trace.h
index 963dc94..3cb0391 100644
--- a/drivers/staging/rdma/hfi1/trace.h
+++ b/drivers/staging/rdma/hfi1/trace.h
@@ -1341,6 +1341,7 @@ __hfi1_trace_def(FIRMWARE);
 __hfi1_trace_def(RCVCTRL);
 __hfi1_trace_def(TID);
 __hfi1_trace_def(MMU);
+__hfi1_trace_def(IOCTL);
 
 #define hfi1_cdbg(which, fmt, ...) \
 	__hfi1_trace_##which(__func__, fmt, ##__VA_ARGS__)

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Thread

[PATCH v2 0/5] IB/hfi1: Remove write() and use ioctl() for user  access Dennis Dalessandro <dennis.dalessandro@intel.com> - 2016-05-12 19:20 +0200
  [PATCH v2 3/5] IB/hfi1: Add ioctl() interface for user commands Dennis Dalessandro <dennis.dalessandro@intel.com> - 2016-05-12 19:20 +0200
    Re: [PATCH v2 3/5] IB/hfi1: Add ioctl() interface for user commands Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2016-05-12 19:50 +0200
      RE: [PATCH v2 3/5] IB/hfi1: Add ioctl() interface for user commands "Hefty, Sean" <sean.hefty@intel.com> - 2016-05-12 20:20 +0200
      Re: [PATCH v2 3/5] IB/hfi1: Add ioctl() interface for user commands Dennis Dalessandro <dennis.dalessandro@intel.com> - 2016-05-12 21:30 +0200
        Re: [PATCH v2 3/5] IB/hfi1: Add ioctl() interface for user commands Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2016-05-12 21:50 +0200
          Re: [PATCH v2 3/5] IB/hfi1: Add ioctl() interface for user commands Doug Ledford <dledford@redhat.com> - 2016-05-12 21:50 +0200
            Re: [PATCH v2 3/5] IB/hfi1: Add ioctl() interface for user commands Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2016-05-12 23:30 +0200
              Re: [PATCH v2 3/5] IB/hfi1: Add ioctl() interface for user commands Dennis Dalessandro <dennis.dalessandro@intel.com> - 2016-05-13 16:40 +0200
          Re: [PATCH v2 3/5] IB/hfi1: Add ioctl() interface for user commands "ira.weiny" <ira.weiny@intel.com> - 2016-05-13 23:00 +0200
  [PATCH v2 1/5] IB/hfi1: Export drivers user sw version via sysfs Dennis Dalessandro <dennis.dalessandro@intel.com> - 2016-05-12 19:20 +0200
  [PATCH v2 2/5] IB/hfi1: Remove unused user command Dennis Dalessandro <dennis.dalessandro@intel.com> - 2016-05-12 19:20 +0200
  [PATCH v2 4/5] IB/hfi1: Remove write(), use ioctl() for user cmds Dennis Dalessandro <dennis.dalessandro@intel.com> - 2016-05-12 19:20 +0200
  [PATCH v2 5/5] IB/hfi1: Add trace message in user IOCTL handling Dennis Dalessandro <dennis.dalessandro@intel.com> - 2016-05-12 19:20 +0200
  Re: [PATCH v2 0/5] IB/hfi1: Remove write() and use ioctl() for user  access Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2016-05-12 19:40 +0200
    Re: [PATCH v2 0/5] IB/hfi1: Remove write() and use ioctl() for user access Dennis Dalessandro <dennis.dalessandro@intel.com> - 2016-05-12 21:10 +0200
      Re: [PATCH v2 0/5] IB/hfi1: Remove write() and use ioctl() for user  access Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2016-05-12 21:30 +0200
        Re: [PATCH v2 0/5] IB/hfi1: Remove write() and use ioctl() for user access Dennis Dalessandro <dennis.dalessandro@intel.com> - 2016-05-12 22:00 +0200
          Re: [PATCH v2 0/5] IB/hfi1: Remove write() and use ioctl() for user  access Doug Ledford <dledford@redhat.com> - 2016-05-12 22:40 +0200
          Re: [PATCH v2 0/5] IB/hfi1: Remove write() and use ioctl() for user  access Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2016-05-12 23:30 +0200

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