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| author | Michael J. Ruhl <michael.j.ruhl@intel.com> | 2017-12-18 19:57:21 -0800 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2018-01-05 13:34:55 -0500 |
| commit | 11f0e89710ebea7d1086cbe9ab1270c96677f1dc (patch) | |
| tree | dc9152e3cbb4a42a41684cdf74b3654bf361c2cb /drivers/infiniband/hw/qib/qib.h | |
| parent | db9a2c6f9b6196b889b98e961cb9a37617b11ccf (diff) | |
| download | linux-11f0e89710ebea7d1086cbe9ab1270c96677f1dc.tar.gz | |
IB/{hfi1, qib}: Fix a concurrency issue with device name in logging
The get_unit_name() function crafts a string based on the device name
and the device unit number. It then stores this in a static variable.
This has concurrency issues as can be seen with this log:
hfi1 0000:02:00.0: hfi1_1: read_idle_message: read idle message 0x203
hfi1 0000:01:00.0: hfi1_1: read_idle_message: read idle message 0x203
The PCI device ID (0000:02:00.0 vs. 0000:01:00.0) is correct for the
message, but the device string hfi1_1 is incorrect (it should be
hfi1_0 for the second log message).
Remove get_unit_name() function.
Instead, use the rvt accessor rvt_get_ibdev_name() to get the IB name
string.
Clean up any hfi1_early_xx calls that can now use the new path.
QIB has the same (qib_get_unit_name()) issue. Updating as necessary.
Remove qib_get_unit_name() function.
Update log message that has redundant device name.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/qib/qib.h')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h index 34c5254b803d..0235f76bbc72 100644 --- a/drivers/infiniband/hw/qib/qib.h +++ b/drivers/infiniband/hw/qib/qib.h @@ -1428,7 +1428,6 @@ u64 qib_sps_ints(void); */ dma_addr_t qib_map_page(struct pci_dev *, struct page *, unsigned long, size_t, int); -const char *qib_get_unit_name(int unit); struct pci_dev *qib_get_pci_dev(struct rvt_dev_info *rdi); /* @@ -1487,15 +1486,15 @@ extern struct mutex qib_mutex; #define qib_dev_err(dd, fmt, ...) \ dev_err(&(dd)->pcidev->dev, "%s: " fmt, \ - qib_get_unit_name((dd)->unit), ##__VA_ARGS__) + rvt_get_ibdev_name(&(dd)->verbs_dev.rdi), ##__VA_ARGS__) #define qib_dev_warn(dd, fmt, ...) \ dev_warn(&(dd)->pcidev->dev, "%s: " fmt, \ - qib_get_unit_name((dd)->unit), ##__VA_ARGS__) + rvt_get_ibdev_name(&(dd)->verbs_dev.rdi), ##__VA_ARGS__) #define qib_dev_porterr(dd, port, fmt, ...) \ dev_err(&(dd)->pcidev->dev, "%s: IB%u:%u " fmt, \ - qib_get_unit_name((dd)->unit), (dd)->unit, (port), \ + rvt_get_ibdev_name(&(dd)->verbs_dev.rdi), (dd)->unit, (port), \ ##__VA_ARGS__) #define qib_devinfo(pcidev, fmt, ...) \ |