Re: [PATCHv2 16/23] media: microchip: don't set bus_info

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On 23/09/2023 at 17:21, Hans Verkuil wrote:
Let the V4L2 core fill this in.

Fixes these compiler warnings:

drivers/media/platform/microchip/microchip-isc-base.c: In function 'isc_querycap':
drivers/media/platform/microchip/microchip-isc-base.c:486:28: warning: '%s' directive output may be truncated writing up to 35 bytes into a region of size 23 [-Wformat-truncation=]
   486 |                  "platform:%s", isc->v4l2_dev.name);
       |                            ^~
drivers/media/platform/microchip/microchip-isc-base.c:485:9: note: 'snprintf' output between 10 and 45 bytes into a destination of size 32
   485 |         snprintf(cap->bus_info, sizeof(cap->bus_info),
       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   486 |                  "platform:%s", isc->v4l2_dev.name);
       |                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/media/platform/microchip/microchip-isc-base.c: In function 'isc_mc_init':
drivers/media/platform/microchip/microchip-isc-base.c:1996:76: warning: '%s' directive output may be truncated writing up to 35 bytes into a region of size 23 [-Wformat-truncation=]
  1996 |         snprintf(isc->mdev.bus_info, sizeof(isc->mdev.bus_info), "platform:%s",
       |                                                                            ^~
drivers/media/platform/microchip/microchip-isc-base.c:1996:9: note: 'snprintf' output between 10 and 45 bytes into a destination of size 32
  1996 |         snprintf(isc->mdev.bus_info, sizeof(isc->mdev.bus_info), "platform:%s",
       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  1997 |                  isc->v4l2_dev.name);
       |                  ~~~~~~~~~~~~~~~~~~~

Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Cc: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx>
Cc: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx>

Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx>

---
  drivers/media/platform/microchip/microchip-isc-base.c | 6 ------
  1 file changed, 6 deletions(-)

diff --git a/drivers/media/platform/microchip/microchip-isc-base.c b/drivers/media/platform/microchip/microchip-isc-base.c
index 8dbf7bc1e863..1f8528844497 100644
--- a/drivers/media/platform/microchip/microchip-isc-base.c
+++ b/drivers/media/platform/microchip/microchip-isc-base.c
@@ -478,12 +478,8 @@ static const struct vb2_ops isc_vb2_ops = {
  static int isc_querycap(struct file *file, void *priv,
                         struct v4l2_capability *cap)
  {
-       struct isc_device *isc = video_drvdata(file);
-
         strscpy(cap->driver, "microchip-isc", sizeof(cap->driver));
         strscpy(cap->card, "Microchip Image Sensor Controller", sizeof(cap->card));
-       snprintf(cap->bus_info, sizeof(cap->bus_info),
-                "platform:%s", isc->v4l2_dev.name);

         return 0;
  }
@@ -1993,8 +1989,6 @@ int isc_mc_init(struct isc_device *isc, u32 ver)
         strscpy(isc->mdev.driver_name, KBUILD_MODNAME,
                 sizeof(isc->mdev.driver_name));
         strscpy(isc->mdev.model, match->compatible, sizeof(isc->mdev.model));
-       snprintf(isc->mdev.bus_info, sizeof(isc->mdev.bus_info), "platform:%s",
-                isc->v4l2_dev.name);
         isc->mdev.hw_revision = ver;

         media_device_init(&isc->mdev);
--
2.40.1





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