From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
devel@driverdev.osuosl.org,
Sakari Ailus <sakari.ailus@linux.intel.com>
Subject: [PATCH 03/11] media: atomisp: avoid a copy of v4l2_mbus_framefmt at stack
Date: Mon, 25 May 2020 08:56:02 +0200 [thread overview]
Message-ID: <b6121bbac4487fbfc7e7c5a5ede0de8a0e5b49ac.1590389536.git.mchehab+huawei@kernel.org> (raw)
In-Reply-To: <cover.1590389536.git.mchehab+huawei@kernel.org>
There's no reason to copy isp_sink_fmt, as the driver
uses it for read-only purposes.
Linux stack is a precious resource. Let's avoid wasting it.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
drivers/staging/media/atomisp/pci/atomisp_cmd.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 1e22cb70ac1b..f5fa9fe46659 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -5608,7 +5608,7 @@ int atomisp_set_fmt(struct video_device *vdev, struct v4l2_format *f)
unsigned int dvs_env_w = 0, dvs_env_h = 0;
unsigned int padding_w = pad_w, padding_h = pad_h;
bool res_overflow = false, crop_needs_override = false;
- struct v4l2_mbus_framefmt isp_sink_fmt;
+ struct v4l2_mbus_framefmt *isp_sink_fmt;
struct v4l2_mbus_framefmt isp_source_fmt = {0};
struct v4l2_rect isp_sink_crop;
u16 source_pad = atomisp_subdev_source_pad(vdev);
@@ -5789,7 +5789,7 @@ int atomisp_set_fmt(struct video_device *vdev, struct v4l2_format *f)
ATOMISP_SUBDEV_PAD_SINK)->code =
snr_format_bridge->mbus_code;
- isp_sink_fmt = *atomisp_subdev_get_ffmt(&asd->subdev, NULL,
+ isp_sink_fmt = atomisp_subdev_get_ffmt(&asd->subdev, NULL,
V4L2_SUBDEV_FORMAT_ACTIVE,
ATOMISP_SUBDEV_PAD_SINK);
@@ -5847,9 +5847,9 @@ int atomisp_set_fmt(struct video_device *vdev, struct v4l2_format *f)
* capture pipe and usually has lower resolution than capture pipe.
*/
if (!asd->continuous_mode->val ||
- isp_sink_fmt.width < (f->fmt.pix.width + padding_w + dvs_env_w) ||
- isp_sink_fmt.height < (f->fmt.pix.height + padding_h +
- dvs_env_h)) {
+ isp_sink_fmt->width < (f->fmt.pix.width + padding_w + dvs_env_w) ||
+ isp_sink_fmt->height < (f->fmt.pix.height + padding_h +
+ dvs_env_h)) {
/*
* For jpeg or custom raw format the sensor will return constant
* width and height. Because we already had quried try_mbus_fmt,
--
2.26.2
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next prev parent reply other threads:[~2020-05-25 6:56 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-25 6:55 [PATCH 00/11] Some fixes and cleanups for atomisp driver Mauro Carvalho Chehab
2020-05-25 6:56 ` [PATCH 01/11] media: atomisp: get rid of hmm_vm.c Mauro Carvalho Chehab
2020-05-27 9:35 ` kbuild test robot
2020-05-25 6:56 ` [PATCH 02/11] media: atomisp: reduce debug printk rate when IRQs are received Mauro Carvalho Chehab
2020-05-25 6:56 ` Mauro Carvalho Chehab [this message]
2020-05-25 6:56 ` [PATCH 04/11] media: atomisp: improve debug messages for set format Mauro Carvalho Chehab
2020-05-25 6:56 ` [PATCH 05/11] media: atomisp: don't flood dmesg with -EAGAIN return codes Mauro Carvalho Chehab
2020-05-25 6:56 ` [PATCH 06/11] media: atomisp: update TODO list Mauro Carvalho Chehab
2020-05-26 7:21 ` Sakari Ailus
2020-05-25 6:56 ` [PATCH 07/11] media: atomisp: get rid of some old broken debug code Mauro Carvalho Chehab
2020-05-25 6:56 ` [PATCH 08/11] media: atomisp: make it use dbg_level to control debug level Mauro Carvalho Chehab
2020-05-25 6:56 ` [PATCH 09/11] media: atomisp: partially get rid of one abstraction layer Mauro Carvalho Chehab
2020-05-26 7:26 ` Sakari Ailus
2020-05-26 8:41 ` Mauro Carvalho Chehab
2020-05-25 6:56 ` [PATCH 10/11] media: atomisp: drop a cast for a const argument Mauro Carvalho Chehab
2020-05-25 6:56 ` [PATCH 11/11] media: atomisp: fix size of delay_frames array Mauro Carvalho Chehab
2020-05-26 7:35 ` [PATCH 00/11] Some fixes and cleanups for atomisp driver Sakari Ailus
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