Messages in this thread | | | Date | Wed, 29 Nov 2023 15:51:54 +0200 | From | Petre Rodan <> | Subject | Re: [PATCH v5 2/2] iio: pressure: driver for Honeywell HSC/SSC series pressure sensors |
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Hello,
thank you for the code review.
On Wed, Nov 29, 2023 at 12:36:46PM +0200, Andy Shevchenko wrote: > On Wed, Nov 29, 2023 at 09:04:49AM +0200, Petre Rodan wrote: > ... > > > + for (index = 0; index < ARRAY_SIZE(hsc_range_config); index++) { > > + if (strncmp(hsc_range_config[index].triplet, > > + triplet, > > + HSC_PRESSURE_TRIPLET_LEN - 1) == 0) { > > + hsc->pmin = hsc_range_config[index].pmin; > > + hsc->pmax = hsc_range_config[index].pmax; > > + found = 1; > > + break; > > + } > > + } > > + if (hsc->pmin == hsc->pmax || !found) > > + return dev_err_probe(dev, -EINVAL, > > + "honeywell,pressure-triplet is invalid\n"); > > This one is important. I think I told already twice that this is NIH > device_property_match_property_string(). Please, use this API directly.
let me see if we are on the same frequency.
you told me to use match_string/sysfs_match_string. using any of those assume having the strings in an array, which means I have to clutter the code with 242 extra lines in order to split up hsc_range_config:
enum hsc_variants { HSC001BA = 0, HSC1_6BA = 1, [ .. 115 lines skipped ] HSC150PG = 117, }
static const char * const hsc_triplet_variants[] = { [HSC001BA] = "001BA", [HSC1_6BA] = "1.6BA", [ .. 115 lines skipped ] [HSC150PG] = "150PG", };
and change my structure to
static const struct hsc_range_config hsc_range_config[] = { [HSC001BA] = { .pmin = 0, .pmax = 100000 }, [ .. 117 lines skipped ] };
just to have the privilege of using match_string() on hsc_triplet_variants. now, which is worse for maintenance? a handful of lines of code that do a loop of strncmp or the clutter depicted above?
I can go either way, but I want to make sure you see where this leads.
> > +#ifndef _HSC030PA_H > > +#define _HSC030PA_H > > > +#include <linux/mutex.h> > > > +#include <linux/property.h> > > Is not used here.
ok. since we are here, can you please tell me how is mutex.h used outside of hsc030pa.c where it was included previously?
cheers, peter
-- petre rodan
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