On 02/20/13 08:50, Mimi Zohar wrote:
> On Tue, 2013-02-19 at 16:28 -0800, Randy Dunlap wrote:
>> On 02/18/13 22:03, Stephen Rothwell wrote:
>>> Hi all,
>>>
>>> Changes since 20130218:
>>>
>>
>> on x86_64:
>>
>>   CC      security/integrity/ima/ima_policy.o
>> security/integrity/ima/ima_policy.c: In function 'ima_parse_rule':
>> security/integrity/ima/ima_policy.c:538:4: error: implicit declaration of 
>> function 'part_pack_uuid' [-Werror=implicit-function-declaration]
>> cc1: some warnings being treated as errors
>> make[4]: *** [security/integrity/ima/ima_policy.o] Error 1
>>
>>
>> Full randconfig file is attached.
> 
> part_pack_uuid() is only defined for CONFIG_BLOCK in
> include/linux/genhd.h.  One solution would be to add a stub function
> definition in include/linux/genhd.h, the other option would be to ifndef
> CONFIG_BLOCK in C code.

ITYM #ifdef CONFIG_BLOCK to call part_pack_uuid().
Yes, either of those would work.
How about a third option -- just make part_pack_uuid() always visible
and not just a stub?  Patch is below.


---
From: Randy Dunlap <[email protected]>

Fix build error when CONFIG_BLOCK is not enabled
by making the static inline function part_pack_uuid()
visible independent of CONFIG_BLOCK's setting.

security/integrity/ima/ima_policy.c:538:4: error: implicit declaration of 
function 'part_pack_uuid' [-Werror=implicit-function-declaration]

Signed-off-by: Randy Dunlap <[email protected]>
Cc: Mimi Zohar <[email protected]>
---
 include/linux/genhd.h |   36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

--- linux-next-20130220.orig/include/linux/genhd.h
+++ linux-next-20130220/include/linux/genhd.h
@@ -213,24 +213,6 @@ static inline struct gendisk *part_to_di
        return NULL;
 }
 
-static inline void part_pack_uuid(const u8 *uuid_str, u8 *to)
-{
-       int i;
-       for (i = 0; i < 16; ++i) {
-               *to++ = (hex_to_bin(*uuid_str) << 4) |
-                       (hex_to_bin(*(uuid_str + 1)));
-               uuid_str += 2;
-               switch (i) {
-               case 3:
-               case 5:
-               case 7:
-               case 9:
-                       uuid_str++;
-                       continue;
-               }
-       }
-}
-
 static inline int disk_max_parts(struct gendisk *disk)
 {
        if (disk->flags & GENHD_FL_EXT_DEVT)
@@ -720,4 +702,22 @@ static inline dev_t blk_lookup_devt(cons
 
 #endif /* CONFIG_BLOCK */
 
+static inline void part_pack_uuid(const u8 *uuid_str, u8 *to)
+{
+       int i;
+       for (i = 0; i < 16; ++i) {
+               *to++ = (hex_to_bin(*uuid_str) << 4) |
+                       (hex_to_bin(*(uuid_str + 1)));
+               uuid_str += 2;
+               switch (i) {
+               case 3:
+               case 5:
+               case 7:
+               case 9:
+                       uuid_str++;
+                       continue;
+               }
+       }
+}
+
 #endif /* _LINUX_GENHD_H */
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