| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20211026193416.1176797-7-clabbe@baylibre.com>
Date: Tue, 26 Oct 2021 19:34:08 +0000
From: Corentin Labbe <clabbe@...libre.com>
To: mchehab@...nel.org, hverkuil@...all.nl, gregkh@...uxfoundation.org
Cc: linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
linux-staging@...ts.linux.dev, mjpeg-users@...ts.sourceforge.net,
Corentin Labbe <clabbe@...libre.com>
Subject: [PATCH v3 06/14] staging: media: zoran: fusion all modules
The zoran driver is split in many modules, but this lead to some
problems.
One of them is that load order is incorrect when everything is built-in.
Having more than one module is useless, so fusion all zoran modules in
one.
Signed-off-by: Corentin Labbe <clabbe@...libre.com>
---
drivers/staging/media/zoran/Kconfig | 14 +--
drivers/staging/media/zoran/Makefile | 8 +-
drivers/staging/media/zoran/videocodec.c | 36 +------
drivers/staging/media/zoran/videocodec.h | 1 -
drivers/staging/media/zoran/zoran_card.c | 119 +++++++++++++++++++----
drivers/staging/media/zoran/zr36016.c | 13 +--
drivers/staging/media/zoran/zr36016.h | 2 +
drivers/staging/media/zoran/zr36050.c | 16 +--
drivers/staging/media/zoran/zr36050.h | 2 +
drivers/staging/media/zoran/zr36060.c | 14 +--
drivers/staging/media/zoran/zr36060.h | 2 +
11 files changed, 125 insertions(+), 102 deletions(-)
diff --git a/drivers/staging/media/zoran/Kconfig b/drivers/staging/media/zoran/Kconfig
index 6d6e4c93f873..4067fa93d44d 100644
--- a/drivers/staging/media/zoran/Kconfig
+++ b/drivers/staging/media/zoran/Kconfig
@@ -15,7 +15,7 @@ config VIDEO_ZORAN
module will be called zr36067.
config VIDEO_ZORAN_DC30
- tristate "Pinnacle/Miro DC30(+) support"
+ bool "Pinnacle/Miro DC30(+) support"
depends on VIDEO_ZORAN
select VIDEO_ADV7175 if MEDIA_SUBDRV_AUTOSELECT
select VIDEO_VPX3220 if MEDIA_SUBDRV_AUTOSELECT
@@ -25,7 +25,7 @@ config VIDEO_ZORAN_DC30
zr36050 MJPEG codec and zr36016 VFE.
config VIDEO_ZORAN_ZR36060
- tristate "Zoran ZR36060"
+ bool "Zoran ZR36060"
depends on VIDEO_ZORAN
help
Say Y to support Zoran boards based on 36060 chips.
@@ -33,7 +33,7 @@ config VIDEO_ZORAN_ZR36060
and 33 R10 and AverMedia 6 boards.
config VIDEO_ZORAN_BUZ
- tristate "Iomega Buz support"
+ bool "Iomega Buz support"
depends on VIDEO_ZORAN_ZR36060
select VIDEO_SAA711X if MEDIA_SUBDRV_AUTOSELECT
select VIDEO_SAA7185 if MEDIA_SUBDRV_AUTOSELECT
@@ -41,7 +41,7 @@ config VIDEO_ZORAN_BUZ
Support for the Iomega Buz MJPEG capture/playback card.
config VIDEO_ZORAN_DC10
- tristate "Pinnacle/Miro DC10(+) support"
+ bool "Pinnacle/Miro DC10(+) support"
depends on VIDEO_ZORAN_ZR36060
select VIDEO_SAA7110 if MEDIA_SUBDRV_AUTOSELECT
select VIDEO_ADV7175 if MEDIA_SUBDRV_AUTOSELECT
@@ -50,7 +50,7 @@ config VIDEO_ZORAN_DC10
card.
config VIDEO_ZORAN_LML33
- tristate "Linux Media Labs LML33 support"
+ bool "Linux Media Labs LML33 support"
depends on VIDEO_ZORAN_ZR36060
select VIDEO_BT819 if MEDIA_SUBDRV_AUTOSELECT
select VIDEO_BT856 if MEDIA_SUBDRV_AUTOSELECT
@@ -59,7 +59,7 @@ config VIDEO_ZORAN_LML33
card.
config VIDEO_ZORAN_LML33R10
- tristate "Linux Media Labs LML33R10 support"
+ bool "Linux Media Labs LML33R10 support"
depends on VIDEO_ZORAN_ZR36060
select VIDEO_SAA711X if MEDIA_SUBDRV_AUTOSELECT
select VIDEO_ADV7170 if MEDIA_SUBDRV_AUTOSELECT
@@ -68,7 +68,7 @@ config VIDEO_ZORAN_LML33R10
card.
config VIDEO_ZORAN_AVS6EYES
- tristate "AverMedia 6 Eyes support"
+ bool "AverMedia 6 Eyes support"
depends on VIDEO_ZORAN_ZR36060
select VIDEO_BT856 if MEDIA_SUBDRV_AUTOSELECT
select VIDEO_BT866 if MEDIA_SUBDRV_AUTOSELECT
diff --git a/drivers/staging/media/zoran/Makefile b/drivers/staging/media/zoran/Makefile
index 7023158e3892..9603bac0195c 100644
--- a/drivers/staging/media/zoran/Makefile
+++ b/drivers/staging/media/zoran/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
zr36067-objs := zoran_device.o \
- zoran_driver.o zoran_card.o
+ zoran_driver.o zoran_card.o videocodec.o
-obj-$(CONFIG_VIDEO_ZORAN) += zr36067.o videocodec.o
-obj-$(CONFIG_VIDEO_ZORAN_DC30) += zr36050.o zr36016.o
-obj-$(CONFIG_VIDEO_ZORAN_ZR36060) += zr36060.o
+obj-$(CONFIG_VIDEO_ZORAN) += zr36067.o
+zr36067-$(CONFIG_VIDEO_ZORAN_DC30) += zr36050.o zr36016.o
+zr36067-$(CONFIG_VIDEO_ZORAN_ZR36060) += zr36060.o
diff --git a/drivers/staging/media/zoran/videocodec.c b/drivers/staging/media/zoran/videocodec.c
index 5bab7ba56257..3af7d02bd910 100644
--- a/drivers/staging/media/zoran/videocodec.c
+++ b/drivers/staging/media/zoran/videocodec.c
@@ -8,8 +8,6 @@
* (c) 2002 Wolfgang Scherr <scherr@...4you.at>
*/
-#define VIDEOCODEC_VERSION "v0.2"
-
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -72,12 +70,9 @@ struct videocodec *videocodec_attach(struct videocodec_master *master)
if ((master->flags & h->codec->flags) == master->flags) {
dprintk(4, "%s: try '%s'\n", __func__, h->codec->name);
- if (!try_module_get(h->codec->owner))
- return NULL;
-
codec = kmemdup(h->codec, sizeof(struct videocodec), GFP_KERNEL);
if (!codec)
- goto out_module_put;
+ goto out_kfree;
res = strlen(codec->name);
snprintf(codec->name + res, sizeof(codec->name) - res, "[%d]", h->attached);
@@ -113,13 +108,10 @@ struct videocodec *videocodec_attach(struct videocodec_master *master)
pr_err("%s: no codec found!\n", __func__);
return NULL;
- out_module_put:
- module_put(h->codec->owner);
out_kfree:
kfree(codec);
return NULL;
}
-EXPORT_SYMBOL(videocodec_attach);
int videocodec_detach(struct videocodec *codec)
{
@@ -160,7 +152,6 @@ int videocodec_detach(struct videocodec *codec)
prev->next = a->next;
dprintk(4, "videocodec: delete middle\n");
}
- module_put(a->codec->owner);
kfree(a->codec);
kfree(a);
h->attached -= 1;
@@ -175,7 +166,6 @@ int videocodec_detach(struct videocodec *codec)
pr_err("%s: given codec not found!\n", __func__);
return -EINVAL;
}
-EXPORT_SYMBOL(videocodec_detach);
int videocodec_register(const struct videocodec *codec)
{
@@ -208,7 +198,6 @@ int videocodec_register(const struct videocodec *codec)
return 0;
}
-EXPORT_SYMBOL(videocodec_register);
int videocodec_unregister(const struct videocodec *codec)
{
@@ -255,7 +244,6 @@ int videocodec_unregister(const struct videocodec *codec)
pr_err("%s: given codec not found!\n", __func__);
return -EINVAL;
}
-EXPORT_SYMBOL(videocodec_unregister);
int videocodec_debugfs_show(struct seq_file *m)
{
@@ -284,25 +272,3 @@ int videocodec_debugfs_show(struct seq_file *m)
return 0;
}
-
-/* ===================== */
-/* hook in driver module */
-/* ===================== */
-static int __init videocodec_init(void)
-{
- pr_info("Linux video codec intermediate layer: %s\n", VIDEOCODEC_VERSION);
-
- return 0;
-}
-
-static void __exit videocodec_exit(void)
-{
-}
-
-module_init(videocodec_init);
-module_exit(videocodec_exit);
-
-MODULE_AUTHOR("Wolfgang Scherr <scherr@...4you.at>");
-MODULE_DESCRIPTION("Intermediate API module for video codecs "
- VIDEOCODEC_VERSION);
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/media/zoran/videocodec.h b/drivers/staging/media/zoran/videocodec.h
index 3a508d326049..9dea348fee40 100644
--- a/drivers/staging/media/zoran/videocodec.h
+++ b/drivers/staging/media/zoran/videocodec.h
@@ -234,7 +234,6 @@ struct jpeg_app_marker {
};
struct videocodec {
- struct module *owner;
/* -- filled in by slave device during register -- */
char name[32];
unsigned long magic; /* may be used for client<->master attaching */
diff --git a/drivers/staging/media/zoran/zoran_card.c b/drivers/staging/media/zoran/zoran_card.c
index 28a3363a8838..a7750442ef9e 100644
--- a/drivers/staging/media/zoran/zoran_card.c
+++ b/drivers/staging/media/zoran/zoran_card.c
@@ -29,6 +29,9 @@
#include "zoran.h"
#include "zoran_card.h"
#include "zoran_device.h"
+#include "zr36016.h"
+#include "zr36050.h"
+#include "zr36060.h"
extern const struct zoran_format zoran_formats[];
@@ -266,6 +269,96 @@ static const char *codecid_to_modulename(u16 codecid)
return name;
}
+static int codec_init(struct zoran *zr, u16 codecid)
+{
+ switch (codecid) {
+ case CODEC_TYPE_ZR36060:
+#ifdef CONFIG_VIDEO_ZORAN_ZR36060
+ return zr36060_init_module();
+#else
+ pci_err(zr->pci_dev, "ZR36060 support is not enabled\n");
+ return -EINVAL;
+#endif
+ break;
+ case CODEC_TYPE_ZR36050:
+#ifdef CONFIG_VIDEO_ZORAN_DC30
+ return zr36050_init_module();
+#else
+ pci_err(zr->pci_dev, "ZR36050 support is not enabled\n");
+ return -EINVAL;
+#endif
+ break;
+ case CODEC_TYPE_ZR36016:
+#ifdef CONFIG_VIDEO_ZORAN_DC30
+ return zr36016_init_module();
+#else
+ pci_err(zr->pci_dev, "ZR36016 support is not enabled\n");
+ return -EINVAL;
+#endif
+ break;
+ }
+
+ pci_err(zr->pci_dev, "unknown codec id %x\n", codecid);
+ return -EINVAL;
+}
+
+static void codec_exit(struct zoran *zr, u16 codecid)
+{
+ switch (codecid) {
+ case CODEC_TYPE_ZR36060:
+#ifdef CONFIG_VIDEO_ZORAN_ZR36060
+ zr36060_cleanup_module();
+#endif
+ break;
+ case CODEC_TYPE_ZR36050:
+#ifdef CONFIG_VIDEO_ZORAN_DC30
+ zr36050_cleanup_module();
+#endif
+ break;
+ case CODEC_TYPE_ZR36016:
+#ifdef CONFIG_VIDEO_ZORAN_DC30
+ zr36016_cleanup_module();
+#endif
+ break;
+ }
+}
+
+static int videocodec_init(struct zoran *zr)
+{
+ const char *codec_name, *vfe_name;
+ int result;
+
+ codec_name = codecid_to_modulename(zr->card.video_codec);
+ if (codec_name) {
+ result = codec_init(zr, zr->card.video_codec);
+ if (result < 0) {
+ pci_err(zr->pci_dev, "failed to load video codec %s: %d\n",
+ codec_name, result);
+ return result;
+ }
+ }
+ vfe_name = codecid_to_modulename(zr->card.video_vfe);
+ if (vfe_name) {
+ result = codec_init(zr, zr->card.video_vfe);
+ if (result < 0) {
+ pci_err(zr->pci_dev, "failed to load video vfe %s: %d\n",
+ vfe_name, result);
+ if (codec_name)
+ codec_exit(zr, zr->card.video_codec);
+ return result;
+ }
+ }
+ return 0;
+}
+
+static void videocodec_exit(struct zoran *zr)
+{
+ if (zr->card.video_codec != CODEC_TYPE_NONE)
+ codec_exit(zr, zr->card.video_codec);
+ if (zr->card.video_vfe != CODEC_TYPE_NONE)
+ codec_exit(zr, zr->card.video_vfe);
+}
+
// struct tvnorm {
// u16 wt, wa, h_start, h_sync_start, ht, ha, v_start;
// };
@@ -954,6 +1047,7 @@ static void zoran_remove(struct pci_dev *pdev)
videocodec_detach(zr->codec);
if (zr->vfe)
videocodec_detach(zr->vfe);
+ videocodec_exit(zr);
/* unregister i2c bus */
zoran_unregister_i2c(zr);
@@ -1079,6 +1173,8 @@ static int zoran_debugfs_show(struct seq_file *seq, void *v)
seq_printf(seq, "Prepared %u\n", zr->prepared);
seq_printf(seq, "Queued %u\n", zr->queued);
+
+ videocodec_debugfs_show(seq);
return 0;
}
@@ -1096,7 +1192,6 @@ static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
struct videocodec_master *master_vfe = NULL;
struct videocodec_master *master_codec = NULL;
int card_num;
- const char *codec_name, *vfe_name;
unsigned int nr;
int err;
@@ -1258,23 +1353,9 @@ static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
zr->card.addrs_encoder);
pci_info(zr->pci_dev, "Initializing videocodec bus...\n");
-
- if (zr->card.video_codec) {
- codec_name = codecid_to_modulename(zr->card.video_codec);
- if (codec_name) {
- result = request_module(codec_name);
- if (result)
- pci_err(pdev, "failed to load modules %s: %d\n", codec_name, result);
- }
- }
- if (zr->card.video_vfe) {
- vfe_name = codecid_to_modulename(zr->card.video_vfe);
- if (vfe_name) {
- result = request_module(vfe_name);
- if (result < 0)
- pci_err(pdev, "failed to load modules %s: %d\n", vfe_name, result);
- }
- }
+ err = videocodec_init(zr);
+ if (err)
+ goto zr_unreg_i2c;
/* reset JPEG codec */
jpeg_codec_sleep(zr, 1);
@@ -1328,6 +1409,8 @@ static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
videocodec_detach(zr->vfe);
zr_detach_codec:
videocodec_detach(zr->codec);
+zr_unreg_videocodec:
+ videocodec_exit(zr);
zr_unreg_i2c:
zoran_unregister_i2c(zr);
zr_free_irq:
diff --git a/drivers/staging/media/zoran/zr36016.c b/drivers/staging/media/zoran/zr36016.c
index 50605460a44b..26c7c32b6bc0 100644
--- a/drivers/staging/media/zoran/zr36016.c
+++ b/drivers/staging/media/zoran/zr36016.c
@@ -390,7 +390,6 @@ static int zr36016_setup(struct videocodec *codec)
}
static const struct videocodec zr36016_codec = {
- .owner = THIS_MODULE,
.name = "zr36016",
.magic = 0L, /* magic not used */
.flags =
@@ -409,14 +408,13 @@ static const struct videocodec zr36016_codec = {
HOOK IN DRIVER AS KERNEL MODULE
========================================================================= */
-static int __init zr36016_init_module(void)
+int zr36016_init_module(void)
{
- //dprintk(1, "ZR36016 driver %s\n",ZR016_VERSION);
zr36016_codecs = 0;
return videocodec_register(&zr36016_codec);
}
-static void __exit zr36016_cleanup_module(void)
+void zr36016_cleanup_module(void)
{
if (zr36016_codecs) {
dprintk(1,
@@ -425,10 +423,3 @@ static void __exit zr36016_cleanup_module(void)
}
videocodec_unregister(&zr36016_codec);
}
-
-module_init(zr36016_init_module);
-module_exit(zr36016_cleanup_module);
-
-MODULE_AUTHOR("Wolfgang Scherr <scherr@...4you.at>");
-MODULE_DESCRIPTION("Driver module for ZR36016 video frontends");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/media/zoran/zr36016.h b/drivers/staging/media/zoran/zr36016.h
index 1475f971cc24..04afba35669d 100644
--- a/drivers/staging/media/zoran/zr36016.h
+++ b/drivers/staging/media/zoran/zr36016.h
@@ -89,4 +89,6 @@ struct zr36016 {
#define ZR016_SIGN 0x02
#define ZR016_YMCS 0x01
+int zr36016_init_module(void);
+void zr36016_cleanup_module(void);
#endif /*fndef ZR36016_H */
diff --git a/drivers/staging/media/zoran/zr36050.c b/drivers/staging/media/zoran/zr36050.c
index 4dc7927fefc3..38f7021e7b06 100644
--- a/drivers/staging/media/zoran/zr36050.c
+++ b/drivers/staging/media/zoran/zr36050.c
@@ -5,8 +5,6 @@
* Copyright (C) 2001 Wolfgang Scherr <scherr@...4you.at>
*/
-#define ZR050_VERSION "v0.7.1"
-
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
@@ -798,7 +796,6 @@ static int zr36050_setup(struct videocodec *codec)
}
static const struct videocodec zr36050_codec = {
- .owner = THIS_MODULE,
.name = "zr36050",
.magic = 0L, // magic not used
.flags =
@@ -817,14 +814,13 @@ static const struct videocodec zr36050_codec = {
HOOK IN DRIVER AS KERNEL MODULE
========================================================================= */
-static int __init zr36050_init_module(void)
+int zr36050_init_module(void)
{
- //dprintk(1, "ZR36050 driver %s\n",ZR050_VERSION);
zr36050_codecs = 0;
return videocodec_register(&zr36050_codec);
}
-static void __exit zr36050_cleanup_module(void)
+void zr36050_cleanup_module(void)
{
if (zr36050_codecs) {
dprintk(1,
@@ -833,11 +829,3 @@ static void __exit zr36050_cleanup_module(void)
}
videocodec_unregister(&zr36050_codec);
}
-
-module_init(zr36050_init_module);
-module_exit(zr36050_cleanup_module);
-
-MODULE_AUTHOR("Wolfgang Scherr <scherr@...4you.at>");
-MODULE_DESCRIPTION("Driver module for ZR36050 jpeg processors "
- ZR050_VERSION);
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/media/zoran/zr36050.h b/drivers/staging/media/zoran/zr36050.h
index 8f972d045b58..f9b58f4c77b9 100644
--- a/drivers/staging/media/zoran/zr36050.h
+++ b/drivers/staging/media/zoran/zr36050.h
@@ -160,4 +160,6 @@ struct zr36050 {
#define ZR050_U_COMPONENT 1
#define ZR050_V_COMPONENT 2
+int zr36050_init_module(void);
+void zr36050_cleanup_module(void);
#endif /*fndef ZR36050_H */
diff --git a/drivers/staging/media/zoran/zr36060.c b/drivers/staging/media/zoran/zr36060.c
index 7904d5b1f402..d0c369e31c81 100644
--- a/drivers/staging/media/zoran/zr36060.c
+++ b/drivers/staging/media/zoran/zr36060.c
@@ -5,8 +5,6 @@
* Copyright (C) 2002 Laurent Pinchart <laurent.pinchart@...net.be>
*/
-#define ZR060_VERSION "v0.7"
-
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
@@ -831,7 +829,6 @@ static int zr36060_setup(struct videocodec *codec)
}
static const struct videocodec zr36060_codec = {
- .owner = THIS_MODULE,
.name = "zr36060",
.magic = 0L, // magic not used
.flags =
@@ -846,13 +843,13 @@ static const struct videocodec zr36060_codec = {
// others are not used
};
-static int __init zr36060_init_module(void)
+int zr36060_init_module(void)
{
zr36060_codecs = 0;
return videocodec_register(&zr36060_codec);
}
-static void __exit zr36060_cleanup_module(void)
+void zr36060_cleanup_module(void)
{
if (zr36060_codecs) {
dprintk(1,
@@ -863,10 +860,3 @@ static void __exit zr36060_cleanup_module(void)
/* however, we can't just stay alive */
videocodec_unregister(&zr36060_codec);
}
-
-module_init(zr36060_init_module);
-module_exit(zr36060_cleanup_module);
-
-MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@...net.be>");
-MODULE_DESCRIPTION("Driver module for ZR36060 jpeg processors " ZR060_VERSION);
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/media/zoran/zr36060.h b/drivers/staging/media/zoran/zr36060.h
index d2cdc26bf625..fbf5429534ac 100644
--- a/drivers/staging/media/zoran/zr36060.h
+++ b/drivers/staging/media/zoran/zr36060.h
@@ -198,4 +198,6 @@ struct zr36060 {
#define ZR060_SR_H_SCALE2 BIT(0)
#define ZR060_SR_H_SCALE4 (2 << 0)
+int zr36060_init_module(void);
+void zr36060_cleanup_module(void);
#endif /*fndef ZR36060_H */
--
2.32.0
Powered by blists - more mailing lists