Messages in this thread | | | From | Bryan Wu <> | Date | Sat, 28 Jul 2012 23:18:35 +0800 | Subject | Re: [PATCH 1/3] sysfs: introduce a sysfs_create_file_uevent new API |
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On Fri, Jul 27, 2012 at 11:52 PM, Greg KH <gregkh@linuxfoundation.org> wrote: > On Fri, Jul 27, 2012 at 12:02:41PM +0800, Bryan Wu wrote: >> Send a uevent notification whenever a new sysfs file is created to allow >> userspace processes such as udev to modify permissions on the new files. > > This makes no sense, why not just call kobject_uevent after creating the > file when needed? Wrapping it up in a single function call doesn't add > any benefit that I can see, can you? >
I actually just want to make it benefit for further similar issue in other subsystem, although I got this point from the email started by Colin Cross. I agree if it is just specific to LED subsystem, we'd better add this fixing in LED trigger core code. Maybe I worried about too much and if you guys all ack Colin's patch, I'm going to apply it.
Thanks, -Bryan
>> >> This new API function helps to do this. >> >> Signed-off-by: Bryan Wu <bryan.wu@canonical.com> >> --- >> fs/sysfs/file.c | 28 ++++++++++++++++++++++++++++ >> include/linux/sysfs.h | 13 +++++++++++++ >> 2 files changed, 41 insertions(+) >> >> diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c >> index 00012e3..5a22d13 100644 >> --- a/fs/sysfs/file.c >> +++ b/fs/sysfs/file.c >> @@ -576,6 +576,34 @@ int sysfs_create_file(struct kobject * kobj, const struct attribute * attr) >> >> } >> >> +/** >> + * sysfs_create_file_uevent - create an attribute file for an object >> + and send a uevent to userspace. > > kerneldoc needs to be on one line for function names, right? > > greg k-h
-- Bryan Wu <bryan.wu@canonical.com> Kernel Developer +86.186-168-78255 Mobile Canonical Ltd. www.canonical.com Ubuntu - Linux for human beings | www.ubuntu.com
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