On Thu, Jun 18, 2020 at 09:47:50AM +0200, Greg Kroah-Hartman wrote:
> On Mon, Jun 01, 2020 at 12:52:40AM +0000, Rodolfo C. Villordo wrote:
> > WARNING: Symbolic permissions 'S_IRUGO' are not preferred. Consider using octal permissions '0444'.
> > + .attr = __ATTR(_name, S_IRUGO, _show_function, NULL), \
> > warning detected by checkpatch.pl
> >
> > Signed-off-by: Rodolfo C. Villordo <rodolfovillordo@xxxxxxxxx>
> > ---
> > drivers/staging/gasket/gasket_sysfs.h | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/staging/gasket/gasket_sysfs.h b/drivers/staging/gasket/gasket_sysfs.h
> > index ab5aa351d555..d5e167dfbe76 100644
> > --- a/drivers/staging/gasket/gasket_sysfs.h
> > +++ b/drivers/staging/gasket/gasket_sysfs.h
> > @@ -71,7 +71,7 @@ struct gasket_sysfs_attribute {
> >
> > #define GASKET_SYSFS_RO(_name, _show_function, _attr_type) \
> > { \
> > - .attr = __ATTR(_name, S_IRUGO, _show_function, NULL), \
> > + .attr = __ATTR(_name, 0444, _show_function, NULL), \
>
> What about using __ATTR_RO() instead?
>
I'm not sure if __ATTR_RO() is a good match here. The
GASKET_SYSFS_RO() is invoked with different show functions across the
code. These functions don't follow the name pattern attr_name_show
used in __ATTR_RO(). Please correct me if I misunderstood anything.
### from include/linux/sysfs.h ###
#define __ATTR_RO(_name) { \
.attr = { .name = __stringify(_name), .mode = 0444 }, \
.show = _name##_show, \
}
###
### macro usage across the driver: ###
$ grep GASKET_SYSFS_RO drivers/staging/gasket/*
drivers/staging/gasket/apex_driver.c: GASKET_SYSFS_RO(node_0_page_table_entries, sysfs_show,
drivers/staging/gasket/apex_driver.c: GASKET_SYSFS_RO(node_0_simple_page_table_entries, sysfs_show,
drivers/staging/gasket/apex_driver.c: GASKET_SYSFS_RO(node_0_num_mapped_pages, sysfs_show,
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(bar_offsets, gasket_sysfs_data_show, ATTR_BAR_OFFSETS),
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(bar_sizes, gasket_sysfs_data_show, ATTR_BAR_SIZES),
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(driver_version, gasket_sysfs_data_show,
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(framework_version, gasket_sysfs_data_show,
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(device_type, gasket_sysfs_data_show, ATTR_DEVICE_TYPE),
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(revision, gasket_sysfs_data_show,
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(pci_address, gasket_sysfs_data_show, ATTR_PCI_ADDRESS),
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(status, gasket_sysfs_data_show, ATTR_STATUS),
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(is_device_owned, gasket_sysfs_data_show,
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(device_owner, gasket_sysfs_data_show,
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(write_open_count, gasket_sysfs_data_show,
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(reset_count, gasket_sysfs_data_show, ATTR_RESET_COUNT),
drivers/staging/gasket/gasket_core.c: GASKET_SYSFS_RO(user_mem_ranges, gasket_sysfs_data_show,
drivers/staging/gasket/gasket_interrupt.c: GASKET_SYSFS_RO(interrupt_counts, interrupt_sysfs_show,
###
Thank you!
> thanks,
>
> greg k-h
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