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authorAllen Hubbe <Allen.Hubbe@emc.com>2016-01-21 20:53:50 +0300
committerJon Mason <jdmason@kudzu.us>2016-01-22 03:53:10 +0300
commit03beaec80d57e7a540b1990188f8a97a076da6de (patch)
tree422138c80c662335ebe55f9cd84c2cb1685d317f /drivers
parenta1b3695820aa490e58915d720a1438069813008b (diff)
downloadlinux-03beaec80d57e7a540b1990188f8a97a076da6de.tar.xz
NTB: Fix macro parameter conflict with field name
If the parameter given to the macro is replaced throughout the macro as it is evaluated. The intent is that the macro parameter should replace the only the first parameter to container_of(). However, the way the macro was written, it would also inadvertantly replace a structure field name. If a parameter of any other name is given to the macro, it will fail to compile, if the structure does not contain a field of the same name. At worst, it will compile, and hide improper access of an unintended field in the structure. Change the macro parameter name, so it does not conflict with the structure field name. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Acked-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ntb/hw/intel/ntb_hw_intel.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.h b/drivers/ntb/hw/intel/ntb_hw_intel.h
index 4d60433e279e..3ec149cf6562 100644
--- a/drivers/ntb/hw/intel/ntb_hw_intel.h
+++ b/drivers/ntb/hw/intel/ntb_hw_intel.h
@@ -337,7 +337,8 @@ struct intel_ntb_dev {
#define ndev_pdev(ndev) ((ndev)->ntb.pdev)
#define ndev_name(ndev) pci_name(ndev_pdev(ndev))
#define ndev_dev(ndev) (&ndev_pdev(ndev)->dev)
-#define ntb_ndev(ntb) container_of(ntb, struct intel_ntb_dev, ntb)
-#define hb_ndev(work) container_of(work, struct intel_ntb_dev, hb_timer.work)
+#define ntb_ndev(__ntb) container_of(__ntb, struct intel_ntb_dev, ntb)
+#define hb_ndev(__work) container_of(__work, struct intel_ntb_dev, \
+ hb_timer.work)
#endif