? 2012?06?29? 10:58, Greg KH ??:
> On Thu, Jun 28, 2012 at 04:37:38AM -0700, Greg KH wrote:
>> On Thu, Jun 28, 2012 at 05:54:30PM +0800, Yanfei Zhang wrote:
>>> ? 2012?06?28? 03:22, Greg KH ??:
>>>> On Wed, Jun 27, 2012 at 04:54:54PM +0800, Yanfei Zhang wrote:
>>>>> This patch export offsets of fields via /sys/devices/cpu/vmcs/.
>>>>> Individual offsets are contained in subfiles named by the filed's
>>>>> encoding, e.g.: /sys/devices/cpu/vmcs/0800
>>>>>
>>>>> Signed-off-by: zhangyanfei <zhangyanfei at cn.fujitsu.com>
>>>>> ---
>>>>> drivers/base/core.c | 13 +++++++++++++
>>>>> 1 files changed, 13 insertions(+), 0 deletions(-)
>>>>>
>>>>> diff --git a/drivers/base/core.c b/drivers/base/core.c
>>>>> index 346be8b..dd05ee7 100644
>>>>> --- a/drivers/base/core.c
>>>>> +++ b/drivers/base/core.c
>>>>> @@ -26,6 +26,7 @@
>>>>> #include <linux/async.h>
>>>>> #include <linux/pm_runtime.h>
>>>>> #include <linux/netdevice.h>
>>>>> +#include <asm/vmcsinfo.h>
>>>>
>>>> Did you just break the build on all other arches? Not nice.
>>>>
>>>>> @@ -1038,6 +1039,11 @@ int device_add(struct device *dev)
>>>>> error = dpm_sysfs_add(dev);
>>>>> if (error)
>>>>> goto DPMError;
>>>>> +#if defined(CONFIG_KVM_INTEL) || defined(CONFIG_KVM_INTEL_MODULE)
>>>>> + error = vmcs_sysfs_add(dev);
>>>>> + if (error)
>>>>> + goto VMCSError;
>>>>> +#endif
>>>>
>>>> Oh my no, that's no way to ever do this, you know better than that,
>>>> please fix.
>>>>
>>>> greg k-h
>>>>
>>>
>>> Sorry for my thoughtless, Here is the new patch.
>>>
>>> ---
>>> drivers/base/core.c | 13 +++++++++++++
>>> 1 files changed, 13 insertions(+), 0 deletions(-)
>>>
>>> diff --git a/drivers/base/core.c b/drivers/base/core.c
>>> index 346be8b..7b5266a 100644
>>> --- a/drivers/base/core.c
>>> +++ b/drivers/base/core.c
>>> @@ -30,6 +30,13 @@
>>> #include "base.h"
>>> #include "power/power.h"
>>>
>>> +#if defined(CONFIG_KVM_INTEL) || defined(CONFIG_KVM_INTEL_MODULE)
>>> +#include <asm/vmcsinfo.h>
>>> +#else
>>> +static inline int vmcs_sysfs_add(struct device *dev) { return 0; }
>>> +static inline void vmcs_sysfs_remove(struct device *dev) { }
>>> +#endif
>>
>> {sigh} No, again, you know better, don't do this.
>
> Ok, as others have rightly pointed out, this wasn't the most helpful
> review comment, sorry about that.
>
> In Linux, we don't put ifdefs in .c files, we put them in .h files. See
> many examples of this all over the place. That's my main complaints the
> past two times of this patch.
>
> But, for this, I would question why you even want / need to do this in
> the drivers/base/core/ file in the first place. Shouldn't it be in some
> arch or cpu specific file instead that already handles the cpu files?
>
> thanks,
>
> greg k-h
>
Many thanks. I have moved the code to my vmcsinfo_intel module.
Thanks again for your helpful comment.
Thanks
Zhang Yanfei
