提交 9e2d3cd3 编写于 作者: A Al Viro 提交者: Linus Torvalds

[PATCH] mod_devicetable.h fixes

 * ieee1394_device_id has kernel_ulong_t field after an odd number of
   __u32 ones.  Since mod_devicetable.h is included both from kernel and
   from host build helper, we may be in trouble if we are building on
   32bit host for 64bit target - userland sees unsigned long long,
   kernel sees unsigned long and while their sizes match, alignments
   might not.  Fixed by forcing alignment.  Fortunately, almost nobody
   else needs that - the rest of such fields is naturally aligned as it
   is.

 * of_device_id has void * in it.  Host userland helpers need
   kernel_ulong_t instead, since their void * might have nothing to do
   with the kernel one.  Fixed in the same way it's done for similar
   problems in pcmcia_device_id (ifdef __KERNEL__).

 * pcmcia_device_id has the same problem as ieee1394_device_id.  Fixed
   the same way.
Signed-off-by: NAl Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 5bbe6ab9
......@@ -33,7 +33,8 @@ struct ieee1394_device_id {
__u32 model_id;
__u32 specifier_id;
__u32 version;
kernel_ulong_t driver_data;
kernel_ulong_t driver_data
__attribute__((aligned(sizeof(kernel_ulong_t))));
};
......@@ -182,7 +183,11 @@ struct of_device_id
char name[32];
char type[32];
char compatible[128];
#if __KERNEL__
void *data;
#else
kernel_ulong_t data;
#endif
};
......@@ -208,7 +213,8 @@ struct pcmcia_device_id {
#ifdef __KERNEL__
const char * prod_id[4];
#else
kernel_ulong_t prod_id[4];
kernel_ulong_t prod_id[4]
__attribute__((aligned(sizeof(kernel_ulong_t))));
#endif
/* not matched against */
......
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