On Wed, May 31, 2017 at 10:11:14PM +0100, Nick Dyer wrote:
> On Tue, May 30, 2017 at 09:59:13AM -0700, Dmitry Torokhov wrote:
> > On Tue, May 30, 2017 at 10:23:58AM +0200, Benjamin Tissoires wrote:
> > > On May 29 2017 or thereabouts, Dmitry Torokhov wrote:
> > > > Instead of printing bytes one by one, let's use %phN to print the
> > > > buffer in
> > > > one go.
> > > >
> > > > Also use hweight8 to count number of partitions instead of inspecting it
> > > > bit by bit.
> > > >
> > > > Signed-off-by: Dmitry Torokhov <dmitry.torok...@gmail.com>
> > > > ---
> > >
> > > Looks good to me:
> > > Reviewed-by: Benjamin Tissoires <benjamin.tissoi...@redhat.com>
> >
> > Hm, I just realized taht we'd go from upper to lowercase hex digits. I
> > think it should be OK, but I'd like to hear interested parties (Nick).
> >
> > Or we'd need to introduce %pH I guess.
>
> Hi Dmitry-
>
> I can't see any issue with this: all the firmwares I've encountered are
> purely numerical anyway.
>
> Tested-by: Nick Dyer <n...@shmanahar.org>
Thanks Nick!
>
> >
> > >
> > > Cheers,
> > > Benjamin
> > >
> > > > drivers/input/rmi4/rmi_f34v7.c | 22 ++++++++--------------
> > > > 1 file changed, 8 insertions(+), 14 deletions(-)
> > > >
> > > > diff --git a/drivers/input/rmi4/rmi_f34v7.c
> > > > b/drivers/input/rmi4/rmi_f34v7.c
> > > > index ae2db1c3aebf..3991d2943660 100644
> > > > --- a/drivers/input/rmi4/rmi_f34v7.c
> > > > +++ b/drivers/input/rmi4/rmi_f34v7.c
> > > > @@ -9,13 +9,14 @@
> > > > * the Free Software Foundation.
> > > > */
> > > >
> > > > +#include <linux/bitops.h>
> > > > #include <linux/kernel.h>
> > > > #include <linux/rmi.h>
> > > > #include <linux/firmware.h>
> > > > -#include <asm/unaligned.h>
> > > > #include <linux/delay.h>
> > > > #include <linux/slab.h>
> > > > #include <linux/jiffies.h>
> > > > +#include <asm/unaligned.h>
> > > >
> > > > #include "rmi_driver.h"
> > > > #include "rmi_f34.h"
> > > > @@ -464,7 +465,7 @@ static int rmi_f34v7_read_queries_bl_version(struct
> > > > f34_data *f34)
> > > > static int rmi_f34v7_read_queries(struct f34_data *f34)
> > > > {
> > > > int ret;
> > > > - int i, j;
> > > > + int i;
> > > > u8 base;
> > > > int offset;
> > > > u8 *ptable;
> > > > @@ -519,9 +520,6 @@ static int rmi_f34v7_read_queries(struct f34_data
> > > > *f34)
> > > >
> > > > if (query_0 & HAS_CONFIG_ID) {
> > > > u8 f34_ctrl[CONFIG_ID_SIZE];
> > > > - int i = 0;
> > > > - u8 *p = f34->configuration_id;
> > > > - *p = '\0';
> > > >
> > > > ret = rmi_read_block(f34->fn->rmi_dev,
> > > > f34->fn->fd.control_base_addr,
> > > > @@ -531,13 +529,11 @@ static int rmi_f34v7_read_queries(struct f34_data
> > > > *f34)
> > > > return ret;
> > > >
> > > > /* Eat leading zeros */
> > > > - while (i < sizeof(f34_ctrl) && !f34_ctrl[i])
> > > > - i++;
> > > > + for (i = 0; i < sizeof(f34_ctrl) - 1 && !f34_ctrl[i];
> > > > i++)
> > > > + /* Empty */;
> > > >
> > > > - for (; i < sizeof(f34_ctrl); i++)
> > > > - p += snprintf(p, f34->configuration_id
> > > > - + sizeof(f34->configuration_id) -
> > > > p,
> > > > - "%02X", f34_ctrl[i]);
> > > > + snprintf(f34->configuration_id,
> > > > sizeof(f34->configuration_id),
> > > > + "%*phN", (int)sizeof(f34_ctrl) - i, f34_ctrl +
> > > > i);
> > > >
> > > > rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "Configuration ID:
> > > > %s\n",
> > > > f34->configuration_id);
> > > > @@ -545,9 +541,7 @@ static int rmi_f34v7_read_queries(struct f34_data
> > > > *f34)
> > > >
> > > > f34->v7.partitions = 0;
> > > > for (i = 0; i < sizeof(query_1_7.partition_support); i++)
> > > > - for (j = 0; j < 8; j++)
> > > > - if (query_1_7.partition_support[i] & (1 << j))
> > > > - f34->v7.partitions++;
> > > > + f34->v7.partitions +=
> > > > hweight8(query_1_7.partition_support[i]);
> > > >
> > > > rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "%s: Supported partitions:
> > > > %*ph\n",
> > > > __func__, sizeof(query_1_7.partition_support),
> > > > --
> > > > 2.13.0.219.gdb65acc882-goog
> > > >
> > > >
> > > > --
> > > > Dmitry
> >
> > --
> > Dmitry
--
Dmitry
