[openib-general] [PATCH] AT: cleanup some sparse warnings

Sean Hefty mshefty at ichips.intel.com
Thu Jul 28 14:27:52 PDT 2005


Tom Duffy wrote:
>>> #define IB_ATS_SERVICE_NAME             "DAPL Address Translation Service"
>>>-#define IB_ATS_SERVICE_ID               cpu_to_be64(0x10000ce100415453)
>>>-#define IB_ATS_LAST_SERVICE_ID          cpu_to_be64(0x10000ce1ff415453)
>>>+#define IB_ATS_SERVICE_ID               cpu_to_be64(0x10000ce100415453ULL)
>>>+#define IB_ATS_LAST_SERVICE_ID          cpu_to_be64(0x10000ce1ff415453ULL)
>>> #define IB_ATS_OPENIB_MAGIC_KEY         cpu_to_be16(IB_OPENIB_OUI & 0xffff)
> I am not sure what you are getting at.  This patch corrects the error:
> 
> drivers/infiniband/core/at.c:102:12: warning: constant 0x10000ce100415453 is so big it is long

The change is fine.  My comments were relative to the code itself, and not 
this specific change.  Sorry about the confusion.  I would write the first 
change as:

#define IB_ATS_SERVICE_ID  __constant_cpu_to_be64(0x10000ce100415453ULL)

(And so on for the others.)  I'm not sure which call is preferred, but if I 
remember correctly, I had compile issues trying to use #define labels in 
case statements that went to cpu_to_be*, rather than __constant_cpu_to_be*.

- Sean



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