greybus-dev

greybus-dev@lists.linaro.org

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602 discussions

[PATCH v2] staging: greybus: Documentation: firmware.c: fix whitespace alignments

by Simon Chopin

This addresses all instances of the checkpatch.pl warning "CHECK: Alignment should match open parenthesis" in this file. Signed-off-by: Simon Chopin <schopin(a)ubuntu.com> --- This patch was created as part of the "Submit your first contribution to the Linux kernel" workshop at Debconf 25. changed in v2: * commit title amended to mention Documentation --- .../greybus/Documentation/firmware/firmware.c | 24 +++++++++---------- 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/staging/greybus/Documentation/firmware/firmware.c b/drivers/staging/greybus/Documentation/firmware/firmware.c index 765d69faa9cc..b27d425c5c06 100644 --- a/drivers/staging/greybus/Documentation/firmware/firmware.c +++ b/drivers/staging/greybus/Documentation/firmware/firmware.c @@ -47,12 +47,12 @@ static int update_intf_firmware(int fd) ret = ioctl(fd, FW_MGMT_IOC_GET_INTF_FW, &intf_fw_info); if (ret < 0) { printf("Failed to get interface firmware version: %s (%d)\n", - fwdev, ret); + fwdev, ret); return -1; } printf("Interface Firmware tag (%s), major (%d), minor (%d)\n", - intf_fw_info.firmware_tag, intf_fw_info.major, + intf_fw_info.firmware_tag, intf_fw_info.major, intf_fw_info.minor); /* Try Interface Firmware load over Unipro */ @@ -69,20 +69,20 @@ static int update_intf_firmware(int fd) ret = ioctl(fd, FW_MGMT_IOC_INTF_LOAD_AND_VALIDATE, &intf_load); if (ret < 0) { printf("Failed to load interface firmware: %s (%d)\n", fwdev, - ret); + ret); return -1; } if (intf_load.status != GB_FW_U_LOAD_STATUS_VALIDATED && intf_load.status != GB_FW_U_LOAD_STATUS_UNVALIDATED) { printf("Load status says loading failed: %d\n", - intf_load.status); + intf_load.status); return -1; } printf("Interface Firmware (%s) Load done: major: %d, minor: %d, status: %d\n", - firmware_tag, intf_load.major, intf_load.minor, - intf_load.status); + firmware_tag, intf_load.major, intf_load.minor, + intf_load.status); /* Initiate Mode-switch to the newly loaded firmware */ printf("Initiate Mode switch\n"); @@ -108,12 +108,12 @@ static int update_backend_firmware(int fd) ret = ioctl(fd, FW_MGMT_IOC_GET_BACKEND_FW, &backend_fw_info); if (ret < 0) { printf("Failed to get backend firmware version: %s (%d)\n", - fwdev, ret); + fwdev, ret); return -1; } printf("Backend Firmware tag (%s), major (%d), minor (%d), status (%d)\n", - backend_fw_info.firmware_tag, backend_fw_info.major, + backend_fw_info.firmware_tag, backend_fw_info.major, backend_fw_info.minor, backend_fw_info.status); if (backend_fw_info.status == GB_FW_U_BACKEND_VERSION_STATUS_RETRY) @@ -122,7 +122,7 @@ static int update_backend_firmware(int fd) if ((backend_fw_info.status != GB_FW_U_BACKEND_VERSION_STATUS_SUCCESS) && (backend_fw_info.status != GB_FW_U_BACKEND_VERSION_STATUS_NOT_AVAILABLE)) { printf("Failed to get backend firmware version: %s (%d)\n", - fwdev, backend_fw_info.status); + fwdev, backend_fw_info.status); return -1; } @@ -148,10 +148,10 @@ static int update_backend_firmware(int fd) if (backend_update.status != GB_FW_U_BACKEND_FW_STATUS_SUCCESS) { printf("Load status says loading failed: %d\n", - backend_update.status); + backend_update.status); } else { printf("Backend Firmware (%s) Load done: status: %d\n", - firmware_tag, backend_update.status); + firmware_tag, backend_update.status); } return 0; @@ -185,7 +185,7 @@ int main(int argc, char *argv[]) fw_timeout = strtoul(argv[4], &endptr, 10); printf("Trying Firmware update: fwdev: %s, type: %s, tag: %s, timeout: %u\n", - fwdev, fw_update_type == 0 ? "interface" : "backend", + fwdev, fw_update_type == 0 ? "interface" : "backend", firmware_tag, fw_timeout); printf("Opening %s firmware management device\n", fwdev); base-commit: 1b0ee85ee7967a4d7a68080c3f6a66af69e4e0b4 -- 2.48.1

3 months, 3 weeks

[PATCH] staging: greybus: fix whitespace alignments in firmware.c

by Simon Chopin

This addresses all instances of the checkpatch.pl warning "CHECK: Alignment should match open parenthesis" in this file. Signed-off-by: Simon Chopin <schopin(a)ubuntu.com> --- This patch was created as part of the "Submit your first contribution to the Linux kernel" workshop at Debconf 25. --- .../greybus/Documentation/firmware/firmware.c | 24 +++++++++---------- 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/staging/greybus/Documentation/firmware/firmware.c b/drivers/staging/greybus/Documentation/firmware/firmware.c index 765d69faa9cc..b27d425c5c06 100644 --- a/drivers/staging/greybus/Documentation/firmware/firmware.c +++ b/drivers/staging/greybus/Documentation/firmware/firmware.c @@ -47,12 +47,12 @@ static int update_intf_firmware(int fd) ret = ioctl(fd, FW_MGMT_IOC_GET_INTF_FW, &intf_fw_info); if (ret < 0) { printf("Failed to get interface firmware version: %s (%d)\n", - fwdev, ret); + fwdev, ret); return -1; } printf("Interface Firmware tag (%s), major (%d), minor (%d)\n", - intf_fw_info.firmware_tag, intf_fw_info.major, + intf_fw_info.firmware_tag, intf_fw_info.major, intf_fw_info.minor); /* Try Interface Firmware load over Unipro */ @@ -69,20 +69,20 @@ static int update_intf_firmware(int fd) ret = ioctl(fd, FW_MGMT_IOC_INTF_LOAD_AND_VALIDATE, &intf_load); if (ret < 0) { printf("Failed to load interface firmware: %s (%d)\n", fwdev, - ret); + ret); return -1; } if (intf_load.status != GB_FW_U_LOAD_STATUS_VALIDATED && intf_load.status != GB_FW_U_LOAD_STATUS_UNVALIDATED) { printf("Load status says loading failed: %d\n", - intf_load.status); + intf_load.status); return -1; } printf("Interface Firmware (%s) Load done: major: %d, minor: %d, status: %d\n", - firmware_tag, intf_load.major, intf_load.minor, - intf_load.status); + firmware_tag, intf_load.major, intf_load.minor, + intf_load.status); /* Initiate Mode-switch to the newly loaded firmware */ printf("Initiate Mode switch\n"); @@ -108,12 +108,12 @@ static int update_backend_firmware(int fd) ret = ioctl(fd, FW_MGMT_IOC_GET_BACKEND_FW, &backend_fw_info); if (ret < 0) { printf("Failed to get backend firmware version: %s (%d)\n", - fwdev, ret); + fwdev, ret); return -1; } printf("Backend Firmware tag (%s), major (%d), minor (%d), status (%d)\n", - backend_fw_info.firmware_tag, backend_fw_info.major, + backend_fw_info.firmware_tag, backend_fw_info.major, backend_fw_info.minor, backend_fw_info.status); if (backend_fw_info.status == GB_FW_U_BACKEND_VERSION_STATUS_RETRY) @@ -122,7 +122,7 @@ static int update_backend_firmware(int fd) if ((backend_fw_info.status != GB_FW_U_BACKEND_VERSION_STATUS_SUCCESS) && (backend_fw_info.status != GB_FW_U_BACKEND_VERSION_STATUS_NOT_AVAILABLE)) { printf("Failed to get backend firmware version: %s (%d)\n", - fwdev, backend_fw_info.status); + fwdev, backend_fw_info.status); return -1; } @@ -148,10 +148,10 @@ static int update_backend_firmware(int fd) if (backend_update.status != GB_FW_U_BACKEND_FW_STATUS_SUCCESS) { printf("Load status says loading failed: %d\n", - backend_update.status); + backend_update.status); } else { printf("Backend Firmware (%s) Load done: status: %d\n", - firmware_tag, backend_update.status); + firmware_tag, backend_update.status); } return 0; @@ -185,7 +185,7 @@ int main(int argc, char *argv[]) fw_timeout = strtoul(argv[4], &endptr, 10); printf("Trying Firmware update: fwdev: %s, type: %s, tag: %s, timeout: %u\n", - fwdev, fw_update_type == 0 ? "interface" : "backend", + fwdev, fw_update_type == 0 ? "interface" : "backend", firmware_tag, fw_timeout); printf("Opening %s firmware management device\n", fwdev); base-commit: 1b0ee85ee7967a4d7a68080c3f6a66af69e4e0b4 -- 2.48.1

3 months, 3 weeks

[PATCH 63/80] greybus: Remove redundant pm_runtime_mark_last_busy() calls

by Sakari Ailus

pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(), pm_runtime_autosuspend() and pm_request_autosuspend() now include a call to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to pm_runtime_mark_last_busy(). Signed-off-by: Sakari Ailus <sakari.ailus(a)linux.intel.com> --- The cover letter of the set can be found here <URL:https://lore.kernel.org/linux-pm/20250704075225.3212486-1-sakari.ailus@…>. In brief, this patch depends on PM runtime patches adding marking the last busy timestamp in autosuspend related functions. The patches are here, on rc2: git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \ pm-runtime-6.17-rc1 drivers/greybus/bundle.c | 1 - drivers/greybus/interface.c | 1 - 2 files changed, 2 deletions(-) diff --git a/drivers/greybus/bundle.c b/drivers/greybus/bundle.c index a6e1cca06172..269a82c5c757 100644 --- a/drivers/greybus/bundle.c +++ b/drivers/greybus/bundle.c @@ -155,7 +155,6 @@ static int gb_bundle_resume(struct device *dev) static int gb_bundle_idle(struct device *dev) { - pm_runtime_mark_last_busy(dev); pm_request_autosuspend(dev); return 0; diff --git a/drivers/greybus/interface.c b/drivers/greybus/interface.c index a0f3e9422721..c49fe54c16ca 100644 --- a/drivers/greybus/interface.c +++ b/drivers/greybus/interface.c @@ -753,7 +753,6 @@ static int gb_interface_resume(struct device *dev) static int gb_interface_runtime_idle(struct device *dev) { - pm_runtime_mark_last_busy(dev); pm_request_autosuspend(dev); return 0; -- 2.39.5

4 months

[PATCH 62/80] staging: greybus: Remove redundant pm_runtime_mark_last_busy() calls

by Sakari Ailus

pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(), pm_runtime_autosuspend() and pm_request_autosuspend() now include a call to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to pm_runtime_mark_last_busy(). Signed-off-by: Sakari Ailus <sakari.ailus(a)linux.intel.com> --- The cover letter of the set can be found here <URL:https://lore.kernel.org/linux-pm/20250704075225.3212486-1-sakari.ailus@…>. In brief, this patch depends on PM runtime patches adding marking the last busy timestamp in autosuspend related functions. The patches are here, on rc2: git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \ pm-runtime-6.17-rc1 drivers/staging/greybus/gbphy.c | 1 - drivers/staging/greybus/gbphy.h | 1 - 2 files changed, 2 deletions(-) diff --git a/drivers/staging/greybus/gbphy.c b/drivers/staging/greybus/gbphy.c index 6adcad286633..3068bd71cd98 100644 --- a/drivers/staging/greybus/gbphy.c +++ b/drivers/staging/greybus/gbphy.c @@ -53,7 +53,6 @@ static void gbphy_dev_release(struct device *dev) #ifdef CONFIG_PM static int gb_gbphy_idle(struct device *dev) { - pm_runtime_mark_last_busy(dev); pm_request_autosuspend(dev); return 0; } diff --git a/drivers/staging/greybus/gbphy.h b/drivers/staging/greybus/gbphy.h index d4a225b76338..4a4ebc7f2b98 100644 --- a/drivers/staging/greybus/gbphy.h +++ b/drivers/staging/greybus/gbphy.h @@ -85,7 +85,6 @@ static inline void gbphy_runtime_put_autosuspend(struct gbphy_device *gbphy_dev) { struct device *dev = &gbphy_dev->dev; - pm_runtime_mark_last_busy(dev); pm_runtime_put_autosuspend(dev); } -- 2.39.5

4 months

[PATCH v2] staging: greybus: gbphy: fix up const issue with the match callback

by Greg Kroah-Hartman

gbphy_dev_match_id() should be taking a const pointer, as the pointer passed to it from the container_of() call was const to start with (it was accidentally cast away with the call.) Fix this all up by correctly marking the pointer types. Cc: Johan Hovold <johan(a)kernel.org> Cc: Alex Elder <elder(a)kernel.org> Cc: greybus-dev(a)lists.linaro.org Fixes: d69d80484598 ("driver core: have match() callback in struct bus_type take a const *") Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- v2: - add Fixes: line as pointed out by Johan - don't make gbphy_dev const, it's not needed, as pointed out by Johan drivers/staging/greybus/gbphy.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/staging/greybus/gbphy.c b/drivers/staging/greybus/gbphy.c index 6adcad286633..60cf09a302a7 100644 --- a/drivers/staging/greybus/gbphy.c +++ b/drivers/staging/greybus/gbphy.c @@ -102,8 +102,8 @@ static int gbphy_dev_uevent(const struct device *dev, struct kobj_uevent_env *en } static const struct gbphy_device_id * -gbphy_dev_match_id(struct gbphy_device *gbphy_dev, - struct gbphy_driver *gbphy_drv) +gbphy_dev_match_id(const struct gbphy_device *gbphy_dev, + const struct gbphy_driver *gbphy_drv) { const struct gbphy_device_id *id = gbphy_drv->id_table; @@ -119,7 +119,7 @@ gbphy_dev_match_id(struct gbphy_device *gbphy_dev, static int gbphy_dev_match(struct device *dev, const struct device_driver *drv) { - struct gbphy_driver *gbphy_drv = to_gbphy_driver(drv); + const struct gbphy_driver *gbphy_drv = to_gbphy_driver(drv); struct gbphy_device *gbphy_dev = to_gbphy_dev(dev); const struct gbphy_device_id *id; -- 2.50.0

4 months

[PATCH] greybus: loopback: remove gb_loopback_async_wait_all()

by Pranav Tyagi

Remove redundant gb_loopback_async_wait_all() as connection is disabled at the beginning and no further incoming/outgoing requests are possible. Signed-off-by: Pranav Tyagi <pranav.tyagi03(a)gmail.com> --- drivers/staging/greybus/loopback.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c index 1f19323b0e1a..9d0d4308ad25 100644 --- a/drivers/staging/greybus/loopback.c +++ b/drivers/staging/greybus/loopback.c @@ -1110,13 +1110,6 @@ static void gb_loopback_disconnect(struct gb_bundle *bundle) gb_connection_latency_tag_disable(gb->connection); debugfs_remove(gb->file); - /* - * FIXME: gb_loopback_async_wait_all() is redundant now, as connection - * is disabled at the beginning and so we can't have any more - * incoming/outgoing requests. - */ - gb_loopback_async_wait_all(gb); - spin_lock_irqsave(&gb_dev.lock, flags); gb_dev.count--; spin_unlock_irqrestore(&gb_dev.lock, flags); -- 2.49.0

4 months

[PATCH v2] greybus: gb-beagleplay: remove unneeded calls to devm_gpiod_put()

by Bartosz Golaszewski

From: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> gb_fw_init() is only called in this driver's probe() and we abort the probing if it fails. This means that calling devm_gpiod_put() in error path is not required as devres will already manage the releasing of the resources when the device is detached. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> --- Changes in v2: - add a comment to gb_fw_init() saying it must only be called from probe() drivers/greybus/gb-beagleplay.c | 25 ++++++++----------------- 1 file changed, 8 insertions(+), 17 deletions(-) diff --git a/drivers/greybus/gb-beagleplay.c b/drivers/greybus/gb-beagleplay.c index da31f1131afc..9610f878da1b 100644 --- a/drivers/greybus/gb-beagleplay.c +++ b/drivers/greybus/gb-beagleplay.c @@ -1039,9 +1039,12 @@ static const struct fw_upload_ops cc1352_bootloader_ops = { .cleanup = cc1352_cleanup }; +/* + * Must only be called from probe() as the devres resources allocated here + * will only be released on driver detach. + */ static int gb_fw_init(struct gb_beagleplay *bg) { - int ret; struct fw_upload *fwl; struct gpio_desc *desc; @@ -1060,29 +1063,17 @@ static int gb_fw_init(struct gb_beagleplay *bg) bg->bootloader_backdoor_gpio = desc; desc = devm_gpiod_get(&bg->sd->dev, "reset", GPIOD_IN); - if (IS_ERR(desc)) { - ret = PTR_ERR(desc); - goto free_boot; - } + if (IS_ERR(desc)) + return PTR_ERR(desc); bg->rst_gpio = desc; fwl = firmware_upload_register(THIS_MODULE, &bg->sd->dev, "cc1352p7", &cc1352_bootloader_ops, bg); - if (IS_ERR(fwl)) { - ret = PTR_ERR(fwl); - goto free_reset; - } + if (IS_ERR(fwl)) + return PTR_ERR(fwl); bg->fwl = fwl; return 0; - -free_reset: - devm_gpiod_put(&bg->sd->dev, bg->rst_gpio); - bg->rst_gpio = NULL; -free_boot: - devm_gpiod_put(&bg->sd->dev, bg->bootloader_backdoor_gpio); - bg->bootloader_backdoor_gpio = NULL; - return ret; } static void gb_fw_deinit(struct gb_beagleplay *bg) -- 2.48.1

4 months, 1 week

[PATCH] greybus: gb-beagleplay: remove unneeded calls to devm_gpiod_put()

by Bartosz Golaszewski

From: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> gb_fw_init() is only called in this driver's probe() and we abort the probing if it fails. This means that calling devm_gpiod_put() in error path is not required as devres will already manage the releasing of the resources when the device is detached. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> --- drivers/greybus/gb-beagleplay.c | 21 ++++----------------- 1 file changed, 4 insertions(+), 17 deletions(-) diff --git a/drivers/greybus/gb-beagleplay.c b/drivers/greybus/gb-beagleplay.c index da31f1131afc..1ea48b71a030 100644 --- a/drivers/greybus/gb-beagleplay.c +++ b/drivers/greybus/gb-beagleplay.c @@ -1041,7 +1041,6 @@ static const struct fw_upload_ops cc1352_bootloader_ops = { static int gb_fw_init(struct gb_beagleplay *bg) { - int ret; struct fw_upload *fwl; struct gpio_desc *desc; @@ -1060,29 +1059,17 @@ static int gb_fw_init(struct gb_beagleplay *bg) bg->bootloader_backdoor_gpio = desc; desc = devm_gpiod_get(&bg->sd->dev, "reset", GPIOD_IN); - if (IS_ERR(desc)) { - ret = PTR_ERR(desc); - goto free_boot; - } + if (IS_ERR(desc)) + return PTR_ERR(desc); bg->rst_gpio = desc; fwl = firmware_upload_register(THIS_MODULE, &bg->sd->dev, "cc1352p7", &cc1352_bootloader_ops, bg); - if (IS_ERR(fwl)) { - ret = PTR_ERR(fwl); - goto free_reset; - } + if (IS_ERR(fwl)) + return PTR_ERR(fwl); bg->fwl = fwl; return 0; - -free_reset: - devm_gpiod_put(&bg->sd->dev, bg->rst_gpio); - bg->rst_gpio = NULL; -free_boot: - devm_gpiod_put(&bg->sd->dev, bg->bootloader_backdoor_gpio); - bg->bootloader_backdoor_gpio = NULL; - return ret; } static void gb_fw_deinit(struct gb_beagleplay *bg) -- 2.48.1

4 months, 2 weeks

[PATCH 01/33] tty: introduce and use tty_port_tty_vhangup() helper

by Jiri Slaby (SUSE)

This code (tty_get -> vhangup -> tty_put) is repeated on few places. Introduce a helper similar to tty_port_tty_hangup() (asynchronous) to handle even vhangup (synchronous). And use it on those places. In fact, reuse the tty_port_tty_hangup()'s code and call tty_vhangup() depending on a new bool parameter. Signed-off-by: Jiri Slaby (SUSE) <jirislaby(a)kernel.org> Cc: Karsten Keil <isdn(a)linux-pingi.de> Cc: David Lin <dtwlin(a)gmail.com> Cc: Johan Hovold <johan(a)kernel.org> Cc: Alex Elder <elder(a)kernel.org> Cc: Oliver Neukum <oneukum(a)suse.com> Cc: Marcel Holtmann <marcel(a)holtmann.org> Cc: Johan Hedberg <johan.hedberg(a)gmail.com> Cc: Luiz Augusto von Dentz <luiz.dentz(a)gmail.com> --- Cc: netdev(a)vger.kernel.org Cc: greybus-dev(a)lists.linaro.org Cc: linux-staging(a)lists.linux.dev Cc: linux-usb(a)vger.kernel.org Cc: linux-bluetooth(a)vger.kernel.org --- drivers/isdn/capi/capi.c | 8 +------- drivers/staging/greybus/uart.c | 7 +------ drivers/tty/serial/serial_core.c | 7 +------ drivers/tty/tty_port.c | 12 ++++++++---- drivers/usb/class/cdc-acm.c | 7 +------ drivers/usb/serial/usb-serial.c | 7 +------ include/linux/tty_port.h | 12 +++++++++++- net/bluetooth/rfcomm/tty.c | 7 +------ 8 files changed, 25 insertions(+), 42 deletions(-) diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index 70dee9ad4bae..78e6e7748fb9 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -306,15 +306,9 @@ static void capincci_alloc_minor(struct capidev *cdev, struct capincci *np) static void capincci_free_minor(struct capincci *np) { struct capiminor *mp = np->minorp; - struct tty_struct *tty; if (mp) { - tty = tty_port_tty_get(&mp->port); - if (tty) { - tty_vhangup(tty); - tty_kref_put(tty); - } - + tty_port_tty_vhangup(&mp->port); capiminor_free(mp); } } diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c index 308ed1ca9947..10df5c37c83e 100644 --- a/drivers/staging/greybus/uart.c +++ b/drivers/staging/greybus/uart.c @@ -916,7 +916,6 @@ static void gb_uart_remove(struct gbphy_device *gbphy_dev) { struct gb_tty *gb_tty = gb_gbphy_get_data(gbphy_dev); struct gb_connection *connection = gb_tty->connection; - struct tty_struct *tty; int ret; ret = gbphy_runtime_get_sync(gbphy_dev); @@ -929,11 +928,7 @@ static void gb_uart_remove(struct gbphy_device *gbphy_dev) wake_up_all(&gb_tty->wioctl); mutex_unlock(&gb_tty->mutex); - tty = tty_port_tty_get(&gb_tty->port); - if (tty) { - tty_vhangup(tty); - tty_kref_put(tty); - } + tty_port_tty_vhangup(&gb_tty->port); gb_connection_disable_rx(connection); tty_unregister_device(gb_tty_driver, gb_tty->minor); diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 1f7708a91fc6..d6485714eb0f 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -3209,7 +3209,6 @@ static void serial_core_remove_one_port(struct uart_driver *drv, struct uart_state *state = drv->state + uport->line; struct tty_port *port = &state->port; struct uart_port *uart_port; - struct tty_struct *tty; mutex_lock(&port->mutex); uart_port = uart_port_check(state); @@ -3228,11 +3227,7 @@ static void serial_core_remove_one_port(struct uart_driver *drv, */ tty_port_unregister_device(port, drv->tty_driver, uport->line); - tty = tty_port_tty_get(port); - if (tty) { - tty_vhangup(port->tty); - tty_kref_put(tty); - } + tty_port_tty_vhangup(port); /* * If the port is used as a console, unregister it diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index 4af1fbf73f51..903eebdbe12d 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -396,15 +396,19 @@ EXPORT_SYMBOL(tty_port_hangup); * @port: tty port * @check_clocal: hang only ttys with %CLOCAL unset? */ -void tty_port_tty_hangup(struct tty_port *port, bool check_clocal) +void __tty_port_tty_hangup(struct tty_port *port, bool check_clocal, bool async) { struct tty_struct *tty = tty_port_tty_get(port); - if (tty && (!check_clocal || !C_CLOCAL(tty))) - tty_hangup(tty); + if (tty && (!check_clocal || !C_CLOCAL(tty))) { + if (async) + tty_hangup(tty); + else + tty_vhangup(tty); + } tty_kref_put(tty); } -EXPORT_SYMBOL_GPL(tty_port_tty_hangup); +EXPORT_SYMBOL_GPL(__tty_port_tty_hangup); /** * tty_port_tty_wakeup - helper to wake up a tty diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index c2ecfa3c8349..f9171fbedf5c 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1571,7 +1571,6 @@ static int acm_probe(struct usb_interface *intf, static void acm_disconnect(struct usb_interface *intf) { struct acm *acm = usb_get_intfdata(intf); - struct tty_struct *tty; int i; /* sibling interface is already cleaning up */ @@ -1598,11 +1597,7 @@ static void acm_disconnect(struct usb_interface *intf) usb_set_intfdata(acm->data, NULL); mutex_unlock(&acm->mutex); - tty = tty_port_tty_get(&acm->port); - if (tty) { - tty_vhangup(tty); - tty_kref_put(tty); - } + tty_port_tty_vhangup(&acm->port); cancel_delayed_work_sync(&acm->dwork); diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 7266558d823a..c78ff40b1e5f 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -1176,7 +1176,6 @@ static void usb_serial_disconnect(struct usb_interface *interface) struct usb_serial *serial = usb_get_intfdata(interface); struct device *dev = &interface->dev; struct usb_serial_port *port; - struct tty_struct *tty; /* sibling interface is cleaning up */ if (!serial) @@ -1191,11 +1190,7 @@ static void usb_serial_disconnect(struct usb_interface *interface) for (i = 0; i < serial->num_ports; ++i) { port = serial->port[i]; - tty = tty_port_tty_get(&port->port); - if (tty) { - tty_vhangup(tty); - tty_kref_put(tty); - } + tty_port_tty_vhangup(&port->port); usb_serial_port_poison_urbs(port); wake_up_interruptible(&port->port.delta_msr_wait); cancel_work_sync(&port->work); diff --git a/include/linux/tty_port.h b/include/linux/tty_port.h index 08f89a598366..021f9a8415c0 100644 --- a/include/linux/tty_port.h +++ b/include/linux/tty_port.h @@ -232,7 +232,7 @@ bool tty_port_carrier_raised(struct tty_port *port); void tty_port_raise_dtr_rts(struct tty_port *port); void tty_port_lower_dtr_rts(struct tty_port *port); void tty_port_hangup(struct tty_port *port); -void tty_port_tty_hangup(struct tty_port *port, bool check_clocal); +void __tty_port_tty_hangup(struct tty_port *port, bool check_clocal, bool async); void tty_port_tty_wakeup(struct tty_port *port); int tty_port_block_til_ready(struct tty_port *port, struct tty_struct *tty, struct file *filp); @@ -251,4 +251,14 @@ static inline int tty_port_users(struct tty_port *port) return port->count + port->blocked_open; } +static inline void tty_port_tty_hangup(struct tty_port *port, bool check_clocal) +{ + __tty_port_tty_hangup(port, check_clocal, true); +} + +static inline void tty_port_tty_vhangup(struct tty_port *port) +{ + __tty_port_tty_hangup(port, false, false); +} + #endif diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index 21a5b5535ebc..827dfbe66085 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -438,7 +438,6 @@ static int __rfcomm_release_dev(void __user *arg) { struct rfcomm_dev_req req; struct rfcomm_dev *dev; - struct tty_struct *tty; if (copy_from_user(&req, arg, sizeof(req))) return -EFAULT; @@ -464,11 +463,7 @@ static int __rfcomm_release_dev(void __user *arg) rfcomm_dlc_close(dev->dlc, 0); /* Shut down TTY synchronously before freeing rfcomm_dev */ - tty = tty_port_tty_get(&dev->port); - if (tty) { - tty_vhangup(tty); - tty_kref_put(tty); - } + tty_port_tty_vhangup(&dev->port); if (!test_bit(RFCOMM_TTY_OWNED, &dev->status)) tty_port_put(&dev->port); -- 2.49.0

4 months, 2 weeks

[PATCH] greybus: firmware: use strscpy, fix tag size

by Pranav Tyagi

Increase the size of firmware_tag arrays in the following structs from GB_FIRMWARE_U_TAG_MAX_SIZE to GB_FIRMWARE_U_TAG_MAX_SIZE + 1 to accommodate null termination: - fw_mgmt_ioc_intf_load_and_validate - fw_mgmt_ioc_get_backend_version - fw_mgmt_ioc_backend_fw_update - fw_mgmt_ioc_get_intf_version Replace strncpy() with strscpy() to ensure proper null termination as firmware_tag is interpreted as a null-terminated string and printed with %s. Signed-off-by: Pranav Tyagi <pranav.tyagi03(a)gmail.com> --- .../greybus/Documentation/firmware/firmware.c | 12 ++++++------ drivers/staging/greybus/greybus_firmware.h | 8 ++++---- 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/staging/greybus/Documentation/firmware/firmware.c b/drivers/staging/greybus/Documentation/firmware/firmware.c index 765d69faa9cc..3b4061f4b34a 100644 --- a/drivers/staging/greybus/Documentation/firmware/firmware.c +++ b/drivers/staging/greybus/Documentation/firmware/firmware.c @@ -63,8 +63,8 @@ static int update_intf_firmware(int fd) intf_load.major = 0; intf_load.minor = 0; - strncpy((char *)&intf_load.firmware_tag, firmware_tag, - GB_FIRMWARE_U_TAG_MAX_SIZE); + strscpy((char *)&intf_load.firmware_tag, firmware_tag, + GB_FIRMWARE_U_TAG_MAX_SIZE + 1); ret = ioctl(fd, FW_MGMT_IOC_INTF_LOAD_AND_VALIDATE, &intf_load); if (ret < 0) { @@ -101,8 +101,8 @@ static int update_backend_firmware(int fd) /* Get Backend Firmware Version */ printf("Getting Backend Firmware Version\n"); - strncpy((char *)&backend_fw_info.firmware_tag, firmware_tag, - GB_FIRMWARE_U_TAG_MAX_SIZE); + strscpy((char *)&backend_fw_info.firmware_tag, firmware_tag, + GB_FIRMWARE_U_TAG_MAX_SIZE + 1); retry_fw_version: ret = ioctl(fd, FW_MGMT_IOC_GET_BACKEND_FW, &backend_fw_info); @@ -129,8 +129,8 @@ static int update_backend_firmware(int fd) /* Try Backend Firmware Update over Unipro */ printf("Updating Backend Firmware\n"); - strncpy((char *)&backend_update.firmware_tag, firmware_tag, - GB_FIRMWARE_U_TAG_MAX_SIZE); + strscpy((char *)&backend_update.firmware_tag, firmware_tag, + GB_FIRMWARE_U_TAG_MAX_SIZE + 1); retry_fw_update: backend_update.status = 0; diff --git a/drivers/staging/greybus/greybus_firmware.h b/drivers/staging/greybus/greybus_firmware.h index b6042a82ada4..ad5b2c8a6461 100644 --- a/drivers/staging/greybus/greybus_firmware.h +++ b/drivers/staging/greybus/greybus_firmware.h @@ -38,20 +38,20 @@ /* IOCTL support */ struct fw_mgmt_ioc_get_intf_version { - __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE]; + __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE + 1]; __u16 major; __u16 minor; } __packed; struct fw_mgmt_ioc_get_backend_version { - __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE]; + __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE + 1]; __u16 major; __u16 minor; __u8 status; } __packed; struct fw_mgmt_ioc_intf_load_and_validate { - __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE]; + __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE + 1]; __u8 load_method; __u8 status; __u16 major; @@ -59,7 +59,7 @@ struct fw_mgmt_ioc_intf_load_and_validate { } __packed; struct fw_mgmt_ioc_backend_fw_update { - __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE]; + __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE + 1]; __u8 status; } __packed; -- 2.49.0

4 months, 2 weeks

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