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SubjectRe: [PATCH 6/9] drivers/staging/speakup/: avoid world-writable sysfs files.
On Tue, Apr 22, 2014 at 01:03:29PM +0930, Rusty Russell wrote:
> In line with practice for module parameters, we're adding a build-time
> check that sysfs files aren't world-writable.

Then why not just use the __ATTR_RO() macro?

>
> Cc: Christopher Brannon <chris@the-brannons.com>
> Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
> ---
> drivers/staging/speakup/kobjects.c | 60 ++++++++++++++++----------------
> drivers/staging/speakup/speakup_acntpc.c | 14 ++++----
> drivers/staging/speakup/speakup_acntsa.c | 14 ++++----
> drivers/staging/speakup/speakup_apollo.c | 16 ++++-----
> drivers/staging/speakup/speakup_audptr.c | 16 ++++-----
> drivers/staging/speakup/speakup_bns.c | 14 ++++----
> drivers/staging/speakup/speakup_decext.c | 16 ++++-----
> drivers/staging/speakup/speakup_decpc.c | 16 ++++-----
> drivers/staging/speakup/speakup_dectlk.c | 16 ++++-----
> drivers/staging/speakup/speakup_dtlk.c | 20 +++++------
> drivers/staging/speakup/speakup_dummy.c | 14 ++++----
> drivers/staging/speakup/speakup_keypc.c | 10 +++---
> drivers/staging/speakup/speakup_ltlk.c | 20 +++++------
> drivers/staging/speakup/speakup_soft.c | 22 ++++++------
> drivers/staging/speakup/speakup_spkout.c | 16 ++++-----
> drivers/staging/speakup/speakup_txprt.c | 14 ++++----
> 16 files changed, 149 insertions(+), 149 deletions(-)
>
> diff --git a/drivers/staging/speakup/kobjects.c b/drivers/staging/speakup/kobjects.c
> index 1ca91f7092b1..c4aa13fc2d13 100644
> --- a/drivers/staging/speakup/kobjects.c
> +++ b/drivers/staging/speakup/kobjects.c
> @@ -853,73 +853,73 @@ static ssize_t message_store(struct kobject *kobj, struct kobj_attribute *attr,
> static struct kobj_attribute keymap_attribute =
> __ATTR(keymap, S_IWUSR|S_IRUGO, keymap_show, keymap_store);
> static struct kobj_attribute silent_attribute =
> - __ATTR(silent, S_IWUGO, NULL, silent_store);
> + __ATTR(silent, S_IWUSR|S_IWGRP, NULL, silent_store);

__ATTR_WO()?

I'd prefer some "standard" permissions for all of these sysfs files,
it's quite confusing otherwise, don't you agree?

thanks

greg k-h


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