Thank you for all, I have found root cause:
the "struct ovsdb_idl" is defined in ovsdb-idl.c file, so "idl->table_by_name"
will report warning.
The function I want is to quarry tables in idl at the outside of
ovsdb-idl.c.
I don't know "ovsdb-idl.h" supply this function in API.
2015-03-06 9:01 GMT+08:00 yewgang <batmanu...@gmail.com>:
> It does not work after adding #include "shash.h" in the .c file. It warns
> again.
> And if missing #include "shash.h", will the "struct shash_node *node;"
> report warning ?
>
> 2015-03-06 0:51 GMT+08:00 Ben Pfaff <b...@nicira.com>:
>
>> Missing #include "shash.h"
>>
>> On Thu, Mar 05, 2015 at 09:23:43PM +0800, yewgang wrote:
>> > Dear all,
>> >
>> > what's wrong with these codes ? I really don't know...
>> > my codes is like this :
>> >
>> > static void
>> > test_print_tables(struct ovsdb_idl *idl)
>> > {
>> > /* add for test */
>> > struct shash_node *node;
>> >
>> > SHASH_FOR_EACH(node, &idl->table_by_name) { // Report warning here
>> > ......
>> > }
>> >
>> > }
>> >
>> > but the compiler report warning :
>> >
>> > vswitchd/inventory.c: In function 'test_print_tables':
>> > vswitchd/inventory.c:219:5: error: dereferencing pointer to incomplete
>> type
>> > vswitchd/inventory.c:219:5: error: left-hand operand of comma expression
>> > has no effect [-Werror=unused-value]
>> > vswitchd/inventory.c:219:5: error: dereferencing pointer to incomplete
>> type
>> > vswitchd/inventory.c:219:5: error: left-hand operand of comma expression
>> > has no effect [-Werror=unused-value]
>> > cc1: all warnings being treated as errors
>> > make[2]: *** [vswitchd/inventory.o] Error 1
>> > make[1]: *** [all-recursive] Error 1
>> > make: *** [all] Error 2
>>
>> > _______________________________________________
>> > discuss mailing list
>> > discuss@openvswitch.org
>> > http://openvswitch.org/mailman/listinfo/discuss
>>
>>
>
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