Re: [PATCH] sysfs: sysfs_add_one tells you _where_ the duplicate file is

From: Kay Sievers
Date: Thu Feb 12 2009 - 04:06:18 EST


On Thu, Feb 12, 2009 at 08:02, Alex Chiang <achiang@xxxxxx> wrote:

> sysfs: sysfs_add_one WARNs with full path to duplicate filename
>
> As a debugging aid, it can be useful to know the full path to a
> duplicate file being created in sysfs.

> ret = __sysfs_add_one(acxt, sd);
> - WARN(ret == -EEXIST, KERN_WARNING "sysfs: duplicate filename '%s' "
> - "can not be created\n", sd->s_name);
> + if (ret == -EEXIST) {
> + char path[PATH_MAX];

Isn't that 4k on the stack, and a bit large to put there?

Thanks,
Kay
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