greybus-dev

greybus-dev@lists.linaro.org

9 participants
811 discussions

by Dileep Sankhla

Hello, I am fixing a coding style problem in the loopback bridge driver for the Greybus loopback module. The source code file (please see [0]) is located in the staging tree for the linux-next. In order to create the patch, I need to find the right development tree. I checked the MAINTAINERS file for the Greybus subsystem development tree but could not find one. I also searched [1] for "greybus", but without success. What is the development tree for the greybus subsystem? Regards, Dileep [0]: drivers/staging/greybus/loopback.c [1]: https://git.kernel.org/pub/scm/linux/kernel/git/

2 years, 4 months

[PATCH] greybus: Avoid fake flexible array for response data

by Kees Cook

FORTIFY_SOURCE has been ignoring 0-sized destinations while the kernel code base has been converted to flexible arrays. In order to enforce the 0-sized destinations (e.g. with __counted_by), the remaining 0-sized destinations need to be handled. Instead of converting an empty struct into using a flexible array, just directly use a pointer without any additional indirection. Remove struct gb_bootrom_get_firmware_response and struct gb_fw_download_fetch_firmware_response. Signed-off-by: Kees Cook <keescook(a)chromium.org> --- Cc: Viresh Kumar <vireshk(a)kernel.org> Cc: Johan Hovold <johan(a)kernel.org> Cc: Alex Elder <elder(a)kernel.org> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: Gustavo A. R. Silva <gustavo(a)embeddedor.com> Cc: greybus-dev(a)lists.linaro.org Cc: linux-staging(a)lists.linux.dev --- drivers/staging/greybus/bootrom.c | 7 +++---- drivers/staging/greybus/fw-download.c | 7 +++---- include/linux/greybus/greybus_protocols.h | 8 -------- 3 files changed, 6 insertions(+), 16 deletions(-) diff --git a/drivers/staging/greybus/bootrom.c b/drivers/staging/greybus/bootrom.c index 79581457c4af..76ad5f289072 100644 --- a/drivers/staging/greybus/bootrom.c +++ b/drivers/staging/greybus/bootrom.c @@ -243,10 +243,10 @@ static int gb_bootrom_get_firmware(struct gb_operation *op) struct gb_bootrom *bootrom = gb_connection_get_data(op->connection); const struct firmware *fw; struct gb_bootrom_get_firmware_request *firmware_request; - struct gb_bootrom_get_firmware_response *firmware_response; struct device *dev = &op->connection->bundle->dev; unsigned int offset, size; enum next_request_type next_request; + u8 *firmware_response; int ret = 0; /* Disable timeouts */ @@ -280,15 +280,14 @@ static int gb_bootrom_get_firmware(struct gb_operation *op) goto unlock; } - if (!gb_operation_response_alloc(op, sizeof(*firmware_response) + size, - GFP_KERNEL)) { + if (!gb_operation_response_alloc(op, size, GFP_KERNEL)) { dev_err(dev, "%s: error allocating response\n", __func__); ret = -ENOMEM; goto unlock; } firmware_response = op->response->payload; - memcpy(firmware_response->data, fw->data + offset, size); + memcpy(firmware_response, fw->data + offset, size); dev_dbg(dev, "responding with firmware (offs = %u, size = %u)\n", offset, size); diff --git a/drivers/staging/greybus/fw-download.c b/drivers/staging/greybus/fw-download.c index 543692c567f9..2d73bb729aa2 100644 --- a/drivers/staging/greybus/fw-download.c +++ b/drivers/staging/greybus/fw-download.c @@ -271,11 +271,11 @@ static int fw_download_fetch_firmware(struct gb_operation *op) struct gb_connection *connection = op->connection; struct fw_download *fw_download = gb_connection_get_data(connection); struct gb_fw_download_fetch_firmware_request *request; - struct gb_fw_download_fetch_firmware_response *response; struct fw_request *fw_req; const struct firmware *fw; unsigned int offset, size; u8 firmware_id; + u8 *response; int ret = 0; if (op->request->payload_size != sizeof(*request)) { @@ -325,8 +325,7 @@ static int fw_download_fetch_firmware(struct gb_operation *op) goto put_fw; } - if (!gb_operation_response_alloc(op, sizeof(*response) + size, - GFP_KERNEL)) { + if (!gb_operation_response_alloc(op, size, GFP_KERNEL)) { dev_err(fw_download->parent, "error allocating fetch firmware response\n"); ret = -ENOMEM; @@ -334,7 +333,7 @@ static int fw_download_fetch_firmware(struct gb_operation *op) } response = op->response->payload; - memcpy(response->data, fw->data + offset, size); + memcpy(response, fw->data + offset, size); dev_dbg(fw_download->parent, "responding with firmware (offs = %u, size = %u)\n", offset, diff --git a/include/linux/greybus/greybus_protocols.h b/include/linux/greybus/greybus_protocols.h index aeb8f9243545..603acdcc0c6b 100644 --- a/include/linux/greybus/greybus_protocols.h +++ b/include/linux/greybus/greybus_protocols.h @@ -232,10 +232,6 @@ struct gb_fw_download_fetch_firmware_request { __le32 size; } __packed; -struct gb_fw_download_fetch_firmware_response { - __u8 data[0]; -} __packed; - /* firmware download release firmware request */ struct gb_fw_download_release_firmware_request { __u8 firmware_id; @@ -414,10 +410,6 @@ struct gb_bootrom_get_firmware_request { __le32 size; } __packed; -struct gb_bootrom_get_firmware_response { - __u8 data[0]; -} __packed; - /* Bootrom protocol Ready to boot request */ struct gb_bootrom_ready_to_boot_request { __u8 status; -- 2.34.1

2 years, 4 months

[PATCH v2 00/33] spi: get rid of some legacy macros

by Uwe Kleine-König

Hello, this is v2 of this patch set. Changes since (implicit) v1, sent with Message-Id: cover.1705348269.git.u.kleine-koenig(a)pengutronix.de: - Rebase to v6.8-rc1 - Fix a build failure on sh - Added the tags received in (implicit) v1. The slave-mt27xx driver needs some more work. The patch presented here is enough however to get rid of the defines handled in patch 32. Cleaning that up is out-of-scope for this series, so I'll delay that until later. Note that Jonathan Cameron has already applied patch 3 to his tree, it didn't appear in a public tree though yet. I still included it here to make the kernel build bots happy. Best regards Uwe Uwe Kleine-König (33): fpga: ice40-spi: Follow renaming of SPI "master" to "controller" ieee802154: ca8210: Follow renaming of SPI "master" to "controller" iio: adc: ad_sigma_delta: Follow renaming of SPI "master" to "controller" Input: pxspad - follow renaming of SPI "master" to "controller" Input: synaptics-rmi4 - follow renaming of SPI "master" to "controller" media: mgb4: Follow renaming of SPI "master" to "controller" media: netup_unidvb: Follow renaming of SPI "master" to "controller" media: usb/msi2500: Follow renaming of SPI "master" to "controller" media: v4l2-subdev: Follow renaming of SPI "master" to "controller" misc: gehc-achc: Follow renaming of SPI "master" to "controller" mmc: mmc_spi: Follow renaming of SPI "master" to "controller" mtd: dataflash: Follow renaming of SPI "master" to "controller" mtd: rawnand: fsl_elbc: Let .probe retry if local bus is missing net: ks8851: Follow renaming of SPI "master" to "controller" net: vertexcom: mse102x: Follow renaming of SPI "master" to "controller" platform/chrome: cros_ec_spi: Follow renaming of SPI "master" to "controller" spi: bitbang: Follow renaming of SPI "master" to "controller" spi: cadence-quadspi: Don't emit error message on allocation error spi: cadence-quadspi: Follow renaming of SPI "master" to "controller" spi: cavium: Follow renaming of SPI "master" to "controller" spi: geni-qcom: Follow renaming of SPI "master" to "controller" spi: loopback-test: Follow renaming of SPI "master" to "controller" spi: slave-mt27xx: Follow renaming of SPI "master" to "controller" spi: spidev: Follow renaming of SPI "master" to "controller" staging: fbtft: Follow renaming of SPI "master" to "controller" staging: greybus: spi: Follow renaming of SPI "master" to "controller" tpm_tis_spi: Follow renaming of SPI "master" to "controller" usb: gadget: max3420_udc: Follow renaming of SPI "master" to "controller" video: fbdev: mmp: Follow renaming of SPI "master" to "controller" wifi: libertas: Follow renaming of SPI "master" to "controller" spi: fsl-lib: Follow renaming of SPI "master" to "controller" spi: Drop compat layer from renaming "master" to "controller" Documentation: spi: Update documentation for renaming "master" to "controller" .../driver-api/driver-model/devres.rst | 2 +- Documentation/spi/spi-summary.rst | 74 +++++++++---------- drivers/char/tpm/tpm_tis_spi_main.c | 4 +- drivers/fpga/ice40-spi.c | 4 +- drivers/iio/adc/ad_sigma_delta.c | 14 ++-- drivers/input/joystick/psxpad-spi.c | 4 +- drivers/input/rmi4/rmi_spi.c | 2 +- drivers/media/pci/mgb4/mgb4_core.c | 14 ++-- .../media/pci/netup_unidvb/netup_unidvb_spi.c | 48 ++++++------ drivers/media/usb/msi2500/msi2500.c | 38 +++++----- drivers/media/v4l2-core/v4l2-spi.c | 4 +- drivers/misc/gehc-achc.c | 8 +- drivers/mmc/host/mmc_spi.c | 6 +- drivers/mtd/devices/mtd_dataflash.c | 2 +- drivers/mtd/nand/raw/fsl_elbc_nand.c | 3 +- drivers/net/ethernet/micrel/ks8851_spi.c | 4 +- drivers/net/ethernet/vertexcom/mse102x.c | 2 +- drivers/net/ieee802154/ca8210.c | 2 +- .../net/wireless/marvell/libertas/if_spi.c | 2 +- drivers/platform/chrome/cros_ec_spi.c | 8 +- drivers/spi/spi-ath79.c | 4 +- drivers/spi/spi-bitbang.c | 64 ++++++++-------- drivers/spi/spi-butterfly.c | 6 +- drivers/spi/spi-cadence-quadspi.c | 7 +- drivers/spi/spi-cavium.c | 6 +- drivers/spi/spi-cavium.h | 2 +- drivers/spi/spi-davinci.c | 6 +- drivers/spi/spi-fsl-lib.c | 14 ++-- drivers/spi/spi-geni-qcom.c | 2 +- drivers/spi/spi-gpio.c | 2 +- drivers/spi/spi-lm70llp.c | 6 +- drivers/spi/spi-loopback-test.c | 4 +- drivers/spi/spi-oc-tiny.c | 6 +- drivers/spi/spi-omap-uwire.c | 4 +- drivers/spi/spi-sh-sci.c | 10 +-- drivers/spi/spi-slave-mt27xx.c | 2 +- drivers/spi/spi-xilinx.c | 4 +- drivers/spi/spi-xtensa-xtfpga.c | 2 +- drivers/spi/spi.c | 2 +- drivers/spi/spidev.c | 2 +- drivers/staging/fbtft/fbtft-core.c | 4 +- drivers/staging/greybus/spilib.c | 66 ++++++++--------- drivers/usb/gadget/udc/max3420_udc.c | 2 +- drivers/video/fbdev/mmp/hw/mmp_spi.c | 26 +++---- include/linux/spi/spi.h | 20 +---- include/linux/spi/spi_bitbang.h | 2 +- include/media/v4l2-common.h | 6 +- 47 files changed, 254 insertions(+), 272 deletions(-) base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d -- 2.43.0

2 years, 5 months

[PATCH v2] staging: greybus: Remove usage of the deprecated ida_simple_xx() API

by Christophe JAILLET

ida_alloc() and ida_free() should be preferred to the deprecated ida_simple_get() and ida_simple_remove(). Note that the upper limit of ida_simple_get() is exclusive, but the one of ida_alloc_range()/ida_alloc_max() is inclusive. So a -1 has been added when needed. Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Reviewed-by: Alex Elder <elder(a)linaro.org> --- Changes in v2: - Fix a typo in the commit message - Add R-b tag --- drivers/staging/greybus/audio_manager.c | 8 ++++---- drivers/staging/greybus/authentication.c | 6 +++--- drivers/staging/greybus/fw-download.c | 7 +++---- drivers/staging/greybus/fw-management.c | 20 +++++++++----------- drivers/staging/greybus/gbphy.c | 6 +++--- drivers/staging/greybus/loopback.c | 6 +++--- drivers/staging/greybus/raw.c | 6 +++--- drivers/staging/greybus/vibrator.c | 6 +++--- 8 files changed, 31 insertions(+), 34 deletions(-) diff --git a/drivers/staging/greybus/audio_manager.c b/drivers/staging/greybus/audio_manager.c index 9a3f7c034ab4..fa43d35bbcec 100644 --- a/drivers/staging/greybus/audio_manager.c +++ b/drivers/staging/greybus/audio_manager.c @@ -44,14 +44,14 @@ int gb_audio_manager_add(struct gb_audio_manager_module_descriptor *desc) int id; int err; - id = ida_simple_get(&module_id, 0, 0, GFP_KERNEL); + id = ida_alloc(&module_id, GFP_KERNEL); if (id < 0) return id; err = gb_audio_manager_module_create(&module, manager_kset, id, desc); if (err) { - ida_simple_remove(&module_id, id); + ida_free(&module_id, id); return err; } @@ -78,7 +78,7 @@ int gb_audio_manager_remove(int id) list_del(&module->list); kobject_put(&module->kobj); up_write(&modules_rwsem); - ida_simple_remove(&module_id, id); + ida_free(&module_id, id); return 0; } EXPORT_SYMBOL_GPL(gb_audio_manager_remove); @@ -92,7 +92,7 @@ void gb_audio_manager_remove_all(void) list_for_each_entry_safe(module, next, &modules_list, list) { list_del(&module->list); - ida_simple_remove(&module_id, module->id); + ida_free(&module_id, module->id); kobject_put(&module->kobj); } diff --git a/drivers/staging/greybus/authentication.c b/drivers/staging/greybus/authentication.c index b67315641d18..d53e58f92e81 100644 --- a/drivers/staging/greybus/authentication.c +++ b/drivers/staging/greybus/authentication.c @@ -324,7 +324,7 @@ int gb_cap_connection_init(struct gb_connection *connection) if (ret) goto err_list_del; - minor = ida_simple_get(&cap_minors_map, 0, NUM_MINORS, GFP_KERNEL); + minor = ida_alloc_max(&cap_minors_map, NUM_MINORS - 1, GFP_KERNEL); if (minor < 0) { ret = minor; goto err_connection_disable; @@ -351,7 +351,7 @@ int gb_cap_connection_init(struct gb_connection *connection) err_del_cdev: cdev_del(&cap->cdev); err_remove_ida: - ida_simple_remove(&cap_minors_map, minor); + ida_free(&cap_minors_map, minor); err_connection_disable: gb_connection_disable(connection); err_list_del: @@ -375,7 +375,7 @@ void gb_cap_connection_exit(struct gb_connection *connection) device_destroy(&cap_class, cap->dev_num); cdev_del(&cap->cdev); - ida_simple_remove(&cap_minors_map, MINOR(cap->dev_num)); + ida_free(&cap_minors_map, MINOR(cap->dev_num)); /* * Disallow any new ioctl operations on the char device and wait for diff --git a/drivers/staging/greybus/fw-download.c b/drivers/staging/greybus/fw-download.c index 543692c567f9..2a5c6d1b049c 100644 --- a/drivers/staging/greybus/fw-download.c +++ b/drivers/staging/greybus/fw-download.c @@ -63,8 +63,7 @@ static void fw_req_release(struct kref *kref) * just hope that it never happens. */ if (!fw_req->timedout) - ida_simple_remove(&fw_req->fw_download->id_map, - fw_req->firmware_id); + ida_free(&fw_req->fw_download->id_map, fw_req->firmware_id); kfree(fw_req); } @@ -171,7 +170,7 @@ static struct fw_request *find_firmware(struct fw_download *fw_download, return ERR_PTR(-ENOMEM); /* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */ - ret = ida_simple_get(&fw_download->id_map, 1, 256, GFP_KERNEL); + ret = ida_alloc_range(&fw_download->id_map, 1, 255, GFP_KERNEL); if (ret < 0) { dev_err(fw_download->parent, "failed to allocate firmware id (%d)\n", ret); @@ -212,7 +211,7 @@ static struct fw_request *find_firmware(struct fw_download *fw_download, return fw_req; err_free_id: - ida_simple_remove(&fw_download->id_map, fw_req->firmware_id); + ida_free(&fw_download->id_map, fw_req->firmware_id); err_free_req: kfree(fw_req); diff --git a/drivers/staging/greybus/fw-management.c b/drivers/staging/greybus/fw-management.c index 93137a3c4907..3054f084d777 100644 --- a/drivers/staging/greybus/fw-management.c +++ b/drivers/staging/greybus/fw-management.c @@ -165,7 +165,7 @@ static int fw_mgmt_load_and_validate_operation(struct fw_mgmt *fw_mgmt, } /* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */ - ret = ida_simple_get(&fw_mgmt->id_map, 1, 256, GFP_KERNEL); + ret = ida_alloc_range(&fw_mgmt->id_map, 1, 255, GFP_KERNEL); if (ret < 0) { dev_err(fw_mgmt->parent, "failed to allocate request id (%d)\n", ret); @@ -180,8 +180,7 @@ static int fw_mgmt_load_and_validate_operation(struct fw_mgmt *fw_mgmt, GB_FW_MGMT_TYPE_LOAD_AND_VALIDATE_FW, &request, sizeof(request), NULL, 0); if (ret) { - ida_simple_remove(&fw_mgmt->id_map, - fw_mgmt->intf_fw_request_id); + ida_free(&fw_mgmt->id_map, fw_mgmt->intf_fw_request_id); fw_mgmt->intf_fw_request_id = 0; dev_err(fw_mgmt->parent, "load and validate firmware request failed (%d)\n", @@ -220,7 +219,7 @@ static int fw_mgmt_interface_fw_loaded_operation(struct gb_operation *op) return -ENODEV; } - ida_simple_remove(&fw_mgmt->id_map, fw_mgmt->intf_fw_request_id); + ida_free(&fw_mgmt->id_map, fw_mgmt->intf_fw_request_id); fw_mgmt->intf_fw_request_id = 0; fw_mgmt->intf_fw_status = request->status; fw_mgmt->intf_fw_major = le16_to_cpu(request->major); @@ -316,7 +315,7 @@ static int fw_mgmt_backend_fw_update_operation(struct fw_mgmt *fw_mgmt, } /* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */ - ret = ida_simple_get(&fw_mgmt->id_map, 1, 256, GFP_KERNEL); + ret = ida_alloc_range(&fw_mgmt->id_map, 1, 255, GFP_KERNEL); if (ret < 0) { dev_err(fw_mgmt->parent, "failed to allocate request id (%d)\n", ret); @@ -330,8 +329,7 @@ static int fw_mgmt_backend_fw_update_operation(struct fw_mgmt *fw_mgmt, GB_FW_MGMT_TYPE_BACKEND_FW_UPDATE, &request, sizeof(request), NULL, 0); if (ret) { - ida_simple_remove(&fw_mgmt->id_map, - fw_mgmt->backend_fw_request_id); + ida_free(&fw_mgmt->id_map, fw_mgmt->backend_fw_request_id); fw_mgmt->backend_fw_request_id = 0; dev_err(fw_mgmt->parent, "backend %s firmware update request failed (%d)\n", tag, @@ -369,7 +367,7 @@ static int fw_mgmt_backend_fw_updated_operation(struct gb_operation *op) return -ENODEV; } - ida_simple_remove(&fw_mgmt->id_map, fw_mgmt->backend_fw_request_id); + ida_free(&fw_mgmt->id_map, fw_mgmt->backend_fw_request_id); fw_mgmt->backend_fw_request_id = 0; fw_mgmt->backend_fw_status = request->status; @@ -617,7 +615,7 @@ int gb_fw_mgmt_connection_init(struct gb_connection *connection) if (ret) goto err_list_del; - minor = ida_simple_get(&fw_mgmt_minors_map, 0, NUM_MINORS, GFP_KERNEL); + minor = ida_alloc_max(&fw_mgmt_minors_map, NUM_MINORS - 1, GFP_KERNEL); if (minor < 0) { ret = minor; goto err_connection_disable; @@ -645,7 +643,7 @@ int gb_fw_mgmt_connection_init(struct gb_connection *connection) err_del_cdev: cdev_del(&fw_mgmt->cdev); err_remove_ida: - ida_simple_remove(&fw_mgmt_minors_map, minor); + ida_free(&fw_mgmt_minors_map, minor); err_connection_disable: gb_connection_disable(connection); err_list_del: @@ -669,7 +667,7 @@ void gb_fw_mgmt_connection_exit(struct gb_connection *connection) device_destroy(&fw_mgmt_class, fw_mgmt->dev_num); cdev_del(&fw_mgmt->cdev); - ida_simple_remove(&fw_mgmt_minors_map, MINOR(fw_mgmt->dev_num)); + ida_free(&fw_mgmt_minors_map, MINOR(fw_mgmt->dev_num)); /* * Disallow any new ioctl operations on the char device and wait for diff --git a/drivers/staging/greybus/gbphy.c b/drivers/staging/greybus/gbphy.c index 6a7d8cf2a1eb..93b74a236ab1 100644 --- a/drivers/staging/greybus/gbphy.c +++ b/drivers/staging/greybus/gbphy.c @@ -46,7 +46,7 @@ static void gbphy_dev_release(struct device *dev) { struct gbphy_device *gbphy_dev = to_gbphy_dev(dev); - ida_simple_remove(&gbphy_id, gbphy_dev->id); + ida_free(&gbphy_id, gbphy_dev->id); kfree(gbphy_dev); } @@ -225,13 +225,13 @@ static struct gbphy_device *gb_gbphy_create_dev(struct gb_bundle *bundle, int retval; int id; - id = ida_simple_get(&gbphy_id, 1, 0, GFP_KERNEL); + id = ida_alloc_min(&gbphy_id, 1, GFP_KERNEL); if (id < 0) return ERR_PTR(id); gbphy_dev = kzalloc(sizeof(*gbphy_dev), GFP_KERNEL); if (!gbphy_dev) { - ida_simple_remove(&gbphy_id, id); + ida_free(&gbphy_id, id); return ERR_PTR(-ENOMEM); } diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c index d7b39f3bb652..bb33379b5297 100644 --- a/drivers/staging/greybus/loopback.c +++ b/drivers/staging/greybus/loopback.c @@ -1028,7 +1028,7 @@ static int gb_loopback_probe(struct gb_bundle *bundle, gb->file = debugfs_create_file(name, S_IFREG | 0444, gb_dev.root, gb, &gb_loopback_dbgfs_latency_fops); - gb->id = ida_simple_get(&loopback_ida, 0, 0, GFP_KERNEL); + gb->id = ida_alloc(&loopback_ida, GFP_KERNEL); if (gb->id < 0) { retval = gb->id; goto out_debugfs_remove; @@ -1079,7 +1079,7 @@ static int gb_loopback_probe(struct gb_bundle *bundle, out_connection_disable: gb_connection_disable(connection); out_ida_remove: - ida_simple_remove(&loopback_ida, gb->id); + ida_free(&loopback_ida, gb->id); out_debugfs_remove: debugfs_remove(gb->file); out_connection_destroy: @@ -1121,7 +1121,7 @@ static void gb_loopback_disconnect(struct gb_bundle *bundle) spin_unlock_irqrestore(&gb_dev.lock, flags); device_unregister(gb->dev); - ida_simple_remove(&loopback_ida, gb->id); + ida_free(&loopback_ida, gb->id); gb_connection_destroy(gb->connection); kfree(gb); diff --git a/drivers/staging/greybus/raw.c b/drivers/staging/greybus/raw.c index b9c6eff7cdc1..836d35e5fa85 100644 --- a/drivers/staging/greybus/raw.c +++ b/drivers/staging/greybus/raw.c @@ -181,7 +181,7 @@ static int gb_raw_probe(struct gb_bundle *bundle, raw->connection = connection; greybus_set_drvdata(bundle, raw); - minor = ida_simple_get(&minors, 0, 0, GFP_KERNEL); + minor = ida_alloc(&minors, GFP_KERNEL); if (minor < 0) { retval = minor; goto error_connection_destroy; @@ -214,7 +214,7 @@ static int gb_raw_probe(struct gb_bundle *bundle, gb_connection_disable(connection); error_remove_ida: - ida_simple_remove(&minors, minor); + ida_free(&minors, minor); error_connection_destroy: gb_connection_destroy(connection); @@ -235,7 +235,7 @@ static void gb_raw_disconnect(struct gb_bundle *bundle) device_destroy(&raw_class, raw->dev); cdev_del(&raw->cdev); gb_connection_disable(connection); - ida_simple_remove(&minors, MINOR(raw->dev)); + ida_free(&minors, MINOR(raw->dev)); gb_connection_destroy(connection); mutex_lock(&raw->list_lock); diff --git a/drivers/staging/greybus/vibrator.c b/drivers/staging/greybus/vibrator.c index 227e18d92a95..89bef8045549 100644 --- a/drivers/staging/greybus/vibrator.c +++ b/drivers/staging/greybus/vibrator.c @@ -153,7 +153,7 @@ static int gb_vibrator_probe(struct gb_bundle *bundle, * there is a "real" device somewhere in the kernel for this, but I * can't find it at the moment... */ - vib->minor = ida_simple_get(&minors, 0, 0, GFP_KERNEL); + vib->minor = ida_alloc(&minors, GFP_KERNEL); if (vib->minor < 0) { retval = vib->minor; goto err_connection_disable; @@ -173,7 +173,7 @@ static int gb_vibrator_probe(struct gb_bundle *bundle, return 0; err_ida_remove: - ida_simple_remove(&minors, vib->minor); + ida_free(&minors, vib->minor); err_connection_disable: gb_connection_disable(connection); err_connection_destroy: @@ -197,7 +197,7 @@ static void gb_vibrator_disconnect(struct gb_bundle *bundle) turn_off(vib); device_unregister(vib->dev); - ida_simple_remove(&minors, vib->minor); + ida_free(&minors, vib->minor); gb_connection_disable(vib->connection); gb_connection_destroy(vib->connection); kfree(vib); -- 2.43.0

2 years, 5 months

[PATCH v5 000/111] pwm: Improve lifetime tracking for pwm_chips

by Uwe Kleine-König

Hello, this is v5 of this series. The relevant changes since v4 (https://lore.kernel.org/linux-pwm/cover.1701860672.git.u.kleine-koenig@peng…): - New first patch to reshuffle functions in core.c. This is a preparation for the later changes which brings functions in a better order to not need declarations. - Fix kernel docs in several drivers - Added a few ack and review tags received for v4 - non-trivially rebased to current pwm/for-next (the changes to drivers/gpu/drm/bridge/ti-sn65dsi86.c were intrusive enough to not add the ack tag by Robert Foss I got). Handling got a bit more complicated with the recent addition of pwm_apply_atomic/pwm_apply_might_sleep the locking got more complicated. I didn't work out all the necessary details. So this series won't work as is. However as there is probably some more coordination needed to get the patches in that touch files outside of drivers/pwm and I'm confident they can stay as is, I want to get the biggest part of this series in (up to patch #106) during the next merge window and get them into next soon. After that I can spend the time necessary to fix the locking maybe to get the remaining bits in during the following merge window. There are patches touching drivers/gpu/drm/bridge/ti-sn65dsi86.c (#37 and #104), drivers/staging/greybus/pwm.c (#38 and #106), drivers/gpio/gpio-mvebu.c (#103) and drivers/leds/rgb/leds-qcom-lpg.c (#105). These depend on earlier patches in this series (#3, #39 and #40) The patches touching staging/greybus and leds-qcom-lpg already have a maintainer ack, so I'd merge them via my tree. For the other two it would be nice to get an ack to merge via my tree, too. But if you want to merge via your own tree, please tell, so we can coordinate accordingly. Best regards Uwe Uwe Kleine-König (111): pwm: Reorder symbols in core.c pwm: cros-ec: Change prototype of helpers to prepare further changes pwm: Provide a macro to get the parent device of a given chip pwm: ab8500: Make use of pwmchip_parent() macro pwm: atmel: Make use of pwmchip_parent() macro pwm: atmel-tcb: Make use of pwmchip_parent() macro pwm: bcm-kona: Make use of pwmchip_parent() macro pwm: crc: Make use of pwmchip_parent() macro pwm: cros-ec: Make use of pwmchip_parent() macro pwm: dwc: Make use of pwmchip_parent() macro pwm: ep93xx: Make use of pwmchip_parent() macro pwm: fsl-ftm: Make use of pwmchip_parent() macro pwm: img: Make use of parent device pointer in driver data pwm: imx27: Make use of pwmchip_parent() macro pwm: jz4740: Make use of pwmchip_parent() macro pwm: lpc18xx-sct: Make use of parent device pointer in driver data pwm: lpss: Make use of pwmchip_parent() macro pwm: mediatek: Make use of pwmchip_parent() macro pwm: meson: Make use of pwmchip_parent() macro pwm: mtk-disp: Make use of pwmchip_parent() macro pwm: omap: Make use of pwmchip_parent() macro pwm: pca9685: Store parent device in driver data pwm: raspberrypi-poe: Make use of pwmchip_parent() macro pwm: rcar: Make use of pwmchip_parent() macro pwm: rz-mtu3: Make use of pwmchip_parent() macro pwm: samsung: Make use of pwmchip_parent() macro pwm: sifive: Make use of pwmchip_parent() macro pwm: stm32-lp: Make use of pwmchip_parent() macro pwm: stm32: Make use of pwmchip_parent() macro pwm: stmpe: Make use of pwmchip_parent() macro pwm: sun4i: Make use of pwmchip_parent() macro pwm: tiecap: Make use of pwmchip_parent() macro pwm: tiehrpwm: Make use of pwmchip_parent() macro pwm: twl-led: Make use of pwmchip_parent() macro pwm: twl: Make use of pwmchip_parent() macro pwm: vt8500: Make use of pwmchip_parent() macro drm/bridge: ti-sn65dsi86: Make use of pwmchip_parent() macro staging: greybus: pwm: Make use of pwmchip_parent() macro pwm: Provide wrappers for storing and getting driver private data pwm: Provide devm_pwmchip_alloc() function pwm: ab8500: Make use of devm_pwmchip_alloc() function pwm: apple: Make use of devm_pwmchip_alloc() function pwm: atmel-hlcdc: Make use of devm_pwmchip_alloc() function pwm: atmel: Make use of devm_pwmchip_alloc() function pwm: atmel-tcb: Make use of devm_pwmchip_alloc() function pwm: bcm2835: Make use of devm_pwmchip_alloc() function pwm: bcm-iproc: Make use of devm_pwmchip_alloc() function pwm: bcm-kona: Make use of devm_pwmchip_alloc() function pwm: berlin: Make use of devm_pwmchip_alloc() function pwm: brcmstb: Make use of devm_pwmchip_alloc() function pwm: clk: Make use of devm_pwmchip_alloc() function pwm: clps711x: Make use of devm_pwmchip_alloc() function pwm: crc: Make use of devm_pwmchip_alloc() function pwm: cros-ec: Make use of devm_pwmchip_alloc() function pwm: dwc: Make use of devm_pwmchip_alloc() function pwm: ep93xx: Make use of devm_pwmchip_alloc() function pwm: fsl-ftm: Make use of devm_pwmchip_alloc() function pwm: hibvt: Make use of devm_pwmchip_alloc() function pwm: img: Make use of devm_pwmchip_alloc() function pwm: imx1: Make use of devm_pwmchip_alloc() function pwm: imx27: Make use of devm_pwmchip_alloc() function pwm: imx-tpm: Make use of devm_pwmchip_alloc() function pwm: intel-lgm: Make use of devm_pwmchip_alloc() function pwm: iqs620a: Make use of devm_pwmchip_alloc() function pwm: jz4740: Make use of devm_pwmchip_alloc() function pwm: keembay: Make use of devm_pwmchip_alloc() function pwm: lp3943: Make use of devm_pwmchip_alloc() function pwm: lpc18xx-sct: Make use of devm_pwmchip_alloc() function pwm: lpc32xx: Make use of devm_pwmchip_alloc() function pwm: lpss-*: Make use of devm_pwmchip_alloc() function pwm: mediatek: Make use of devm_pwmchip_alloc() function pwm: meson: Make use of devm_pwmchip_alloc() function pwm: microchip-core: Make use of devm_pwmchip_alloc() function pwm: mtk-disp: Make use of devm_pwmchip_alloc() function pwm: mxs: Make use of devm_pwmchip_alloc() function pwm: ntxec: Make use of devm_pwmchip_alloc() function pwm: omap-dmtimer: Make use of devm_pwmchip_alloc() function pwm: pca9685: Make use of devm_pwmchip_alloc() function pwm: pxa: Make use of devm_pwmchip_alloc() function pwm: raspberrypi-poe: Make use of devm_pwmchip_alloc() function pwm: rcar: Make use of devm_pwmchip_alloc() function pwm: renesas-tpu: Make use of devm_pwmchip_alloc() function pwm: rockchip: Make use of devm_pwmchip_alloc() function pwm: rz-mtu3: Make use of devm_pwmchip_alloc() function pwm: samsung: Make use of devm_pwmchip_alloc() function pwm: sifive: Make use of devm_pwmchip_alloc() function pwm: sl28cpld: Make use of devm_pwmchip_alloc() function pwm: spear: Make use of devm_pwmchip_alloc() function pwm: sprd: Make use of devm_pwmchip_alloc() function pwm: sti: Make use of devm_pwmchip_alloc() function pwm: stm32-lp: Make use of devm_pwmchip_alloc() function pwm: stm32: Make use of devm_pwmchip_alloc() function pwm: stmpe: Make use of devm_pwmchip_alloc() function pwm: sun4i: Make use of devm_pwmchip_alloc() function pwm: sunplus: Make use of devm_pwmchip_alloc() function pwm: tegra: Make use of devm_pwmchip_alloc() function pwm: tiecap: Make use of devm_pwmchip_alloc() function pwm: twl-led: Make use of devm_pwmchip_alloc() function pwm: twl: Make use of devm_pwmchip_alloc() function pwm: visconti: Make use of devm_pwmchip_alloc() function pwm: vt8500: Make use of devm_pwmchip_alloc() function pwm: xilinx: Make use of devm_pwmchip_alloc() function gpio: mvebu: Make use of devm_pwmchip_alloc() function drm/bridge: ti-sn65dsi86: Make use of devm_pwmchip_alloc() function leds: qcom-lpg: Make use of devm_pwmchip_alloc() function staging: greybus: pwm: Make use of devm_pwmchip_alloc() function pwm: Ensure that pwm_chips are allocated using pwmchip_alloc() pwm: Ensure a struct pwm has the same lifetime as its pwm_chip pwm: Ensure the memory backing a PWM chip isn't freed while used pwm: Make pwmchip_[sg]et_drvdata() a wrapper around dev_set_drvdata() WIP: pwm: Add support for pwmchip devices for faster and easier userspace access .../driver-api/driver-model/devres.rst | 1 + Documentation/driver-api/pwm.rst | 10 +- drivers/gpio/gpio-mvebu.c | 18 +- drivers/gpu/drm/bridge/ti-sn65dsi86.c | 31 +- drivers/leds/rgb/leds-qcom-lpg.c | 16 +- drivers/pwm/Kconfig | 4 - drivers/pwm/Makefile | 3 +- drivers/pwm/core.c | 958 ++++++++++++------ drivers/pwm/pwm-ab8500.c | 36 +- drivers/pwm/pwm-apple.c | 18 +- drivers/pwm/pwm-atmel-hlcdc.c | 35 +- drivers/pwm/pwm-atmel-tcb.c | 26 +- drivers/pwm/pwm-atmel.c | 37 +- drivers/pwm/pwm-bcm-iproc.c | 19 +- drivers/pwm/pwm-bcm-kona.c | 21 +- drivers/pwm/pwm-bcm2835.c | 19 +- drivers/pwm/pwm-berlin.c | 29 +- drivers/pwm/pwm-brcmstb.c | 17 +- drivers/pwm/pwm-clk.c | 27 +- drivers/pwm/pwm-clps711x.c | 17 +- drivers/pwm/pwm-crc.c | 22 +- drivers/pwm/pwm-cros-ec.c | 58 +- drivers/pwm/pwm-dwc-core.c | 25 +- drivers/pwm/pwm-dwc.c | 18 +- drivers/pwm/pwm-dwc.h | 9 +- drivers/pwm/pwm-ep93xx.c | 21 +- drivers/pwm/pwm-fsl-ftm.c | 48 +- drivers/pwm/pwm-hibvt.c | 25 +- drivers/pwm/pwm-img.c | 51 +- drivers/pwm/pwm-imx-tpm.c | 34 +- drivers/pwm/pwm-imx1.c | 20 +- drivers/pwm/pwm-imx27.c | 26 +- drivers/pwm/pwm-intel-lgm.c | 17 +- drivers/pwm/pwm-iqs620a.c | 37 +- drivers/pwm/pwm-jz4740.c | 36 +- drivers/pwm/pwm-keembay.c | 17 +- drivers/pwm/pwm-lp3943.c | 17 +- drivers/pwm/pwm-lpc18xx-sct.c | 35 +- drivers/pwm/pwm-lpc32xx.c | 21 +- drivers/pwm/pwm-lpss-pci.c | 10 +- drivers/pwm/pwm-lpss-platform.c | 10 +- drivers/pwm/pwm-lpss.c | 34 +- drivers/pwm/pwm-lpss.h | 1 - drivers/pwm/pwm-mediatek.c | 29 +- drivers/pwm/pwm-meson.c | 57 +- drivers/pwm/pwm-microchip-core.c | 17 +- drivers/pwm/pwm-mtk-disp.c | 25 +- drivers/pwm/pwm-mxs.c | 32 +- drivers/pwm/pwm-ntxec.c | 30 +- drivers/pwm/pwm-omap-dmtimer.c | 47 +- drivers/pwm/pwm-pca9685.c | 98 +- drivers/pwm/pwm-pxa.c | 19 +- drivers/pwm/pwm-raspberrypi-poe.c | 20 +- drivers/pwm/pwm-rcar.c | 25 +- drivers/pwm/pwm-renesas-tpu.c | 18 +- drivers/pwm/pwm-rockchip.c | 24 +- drivers/pwm/pwm-rz-mtu3.c | 39 +- drivers/pwm/pwm-samsung.c | 57 +- drivers/pwm/pwm-sifive.c | 30 +- drivers/pwm/pwm-sl28cpld.c | 13 +- drivers/pwm/pwm-spear.c | 18 +- drivers/pwm/pwm-sprd.c | 50 +- drivers/pwm/pwm-sti.c | 34 +- drivers/pwm/pwm-stm32-lp.c | 29 +- drivers/pwm/pwm-stm32.c | 53 +- drivers/pwm/pwm-stmpe.c | 58 +- drivers/pwm/pwm-sun4i.c | 38 +- drivers/pwm/pwm-sunplus.c | 17 +- drivers/pwm/pwm-tegra.c | 27 +- drivers/pwm/pwm-tiecap.c | 55 +- drivers/pwm/pwm-tiehrpwm.c | 72 +- drivers/pwm/pwm-twl-led.c | 58 +- drivers/pwm/pwm-twl.c | 50 +- drivers/pwm/pwm-visconti.c | 17 +- drivers/pwm/pwm-vt8500.c | 41 +- drivers/pwm/pwm-xilinx.c | 34 +- drivers/pwm/sysfs.c | 64 +- drivers/staging/greybus/pwm.c | 130 +-- include/linux/platform_data/x86/pwm-lpss.h | 4 +- include/linux/pwm.h | 39 +- include/uapi/linux/pwm.h | 23 + 81 files changed, 1870 insertions(+), 1555 deletions(-) create mode 100644 include/uapi/linux/pwm.h base-commit: 6530623212338fc0902e211ea624e790aacb00ef -- 2.43.0

2 years, 5 months

[PATCH] greybus: Remove usage of the deprecated ida_simple_xx() API

by Christophe JAILLET

2 years, 5 months

[PATCH] staging: greybus: Remove usage of the deprecated ida_simple_xx() API

by Christophe JAILLET

ida_alloc() and ida_free() should be preferred to the deprecated ida_simple_get() and ida_simple_remove(). Note that the upper limit of ida_simple_get() is exclusive, buInputt the one of ida_alloc_range()/ida_alloc_max() is inclusive. So a -1 has been added when needed. Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> --- drivers/staging/greybus/audio_manager.c | 8 ++++---- drivers/staging/greybus/authentication.c | 6 +++--- drivers/staging/greybus/fw-download.c | 7 +++---- drivers/staging/greybus/fw-management.c | 20 +++++++++----------- drivers/staging/greybus/gbphy.c | 6 +++--- drivers/staging/greybus/loopback.c | 6 +++--- drivers/staging/greybus/raw.c | 6 +++--- drivers/staging/greybus/vibrator.c | 6 +++--- 8 files changed, 31 insertions(+), 34 deletions(-) diff --git a/drivers/staging/greybus/audio_manager.c b/drivers/staging/greybus/audio_manager.c index 9a3f7c034ab4..fa43d35bbcec 100644 --- a/drivers/staging/greybus/audio_manager.c +++ b/drivers/staging/greybus/audio_manager.c @@ -44,14 +44,14 @@ int gb_audio_manager_add(struct gb_audio_manager_module_descriptor *desc) int id; int err; - id = ida_simple_get(&module_id, 0, 0, GFP_KERNEL); + id = ida_alloc(&module_id, GFP_KERNEL); if (id < 0) return id; err = gb_audio_manager_module_create(&module, manager_kset, id, desc); if (err) { - ida_simple_remove(&module_id, id); + ida_free(&module_id, id); return err; } @@ -78,7 +78,7 @@ int gb_audio_manager_remove(int id) list_del(&module->list); kobject_put(&module->kobj); up_write(&modules_rwsem); - ida_simple_remove(&module_id, id); + ida_free(&module_id, id); return 0; } EXPORT_SYMBOL_GPL(gb_audio_manager_remove); @@ -92,7 +92,7 @@ void gb_audio_manager_remove_all(void) list_for_each_entry_safe(module, next, &modules_list, list) { list_del(&module->list); - ida_simple_remove(&module_id, module->id); + ida_free(&module_id, module->id); kobject_put(&module->kobj); } diff --git a/drivers/staging/greybus/authentication.c b/drivers/staging/greybus/authentication.c index b67315641d18..d53e58f92e81 100644 --- a/drivers/staging/greybus/authentication.c +++ b/drivers/staging/greybus/authentication.c @@ -324,7 +324,7 @@ int gb_cap_connection_init(struct gb_connection *connection) if (ret) goto err_list_del; - minor = ida_simple_get(&cap_minors_map, 0, NUM_MINORS, GFP_KERNEL); + minor = ida_alloc_max(&cap_minors_map, NUM_MINORS - 1, GFP_KERNEL); if (minor < 0) { ret = minor; goto err_connection_disable; @@ -351,7 +351,7 @@ int gb_cap_connection_init(struct gb_connection *connection) err_del_cdev: cdev_del(&cap->cdev); err_remove_ida: - ida_simple_remove(&cap_minors_map, minor); + ida_free(&cap_minors_map, minor); err_connection_disable: gb_connection_disable(connection); err_list_del: @@ -375,7 +375,7 @@ void gb_cap_connection_exit(struct gb_connection *connection) device_destroy(&cap_class, cap->dev_num); cdev_del(&cap->cdev); - ida_simple_remove(&cap_minors_map, MINOR(cap->dev_num)); + ida_free(&cap_minors_map, MINOR(cap->dev_num)); /* * Disallow any new ioctl operations on the char device and wait for diff --git a/drivers/staging/greybus/fw-download.c b/drivers/staging/greybus/fw-download.c index 543692c567f9..2a5c6d1b049c 100644 --- a/drivers/staging/greybus/fw-download.c +++ b/drivers/staging/greybus/fw-download.c @@ -63,8 +63,7 @@ static void fw_req_release(struct kref *kref) * just hope that it never happens. */ if (!fw_req->timedout) - ida_simple_remove(&fw_req->fw_download->id_map, - fw_req->firmware_id); + ida_free(&fw_req->fw_download->id_map, fw_req->firmware_id); kfree(fw_req); } @@ -171,7 +170,7 @@ static struct fw_request *find_firmware(struct fw_download *fw_download, return ERR_PTR(-ENOMEM); /* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */ - ret = ida_simple_get(&fw_download->id_map, 1, 256, GFP_KERNEL); + ret = ida_alloc_range(&fw_download->id_map, 1, 255, GFP_KERNEL); if (ret < 0) { dev_err(fw_download->parent, "failed to allocate firmware id (%d)\n", ret); @@ -212,7 +211,7 @@ static struct fw_request *find_firmware(struct fw_download *fw_download, return fw_req; err_free_id: - ida_simple_remove(&fw_download->id_map, fw_req->firmware_id); + ida_free(&fw_download->id_map, fw_req->firmware_id); err_free_req: kfree(fw_req); diff --git a/drivers/staging/greybus/fw-management.c b/drivers/staging/greybus/fw-management.c index 93137a3c4907..3054f084d777 100644 --- a/drivers/staging/greybus/fw-management.c +++ b/drivers/staging/greybus/fw-management.c @@ -165,7 +165,7 @@ static int fw_mgmt_load_and_validate_operation(struct fw_mgmt *fw_mgmt, } /* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */ - ret = ida_simple_get(&fw_mgmt->id_map, 1, 256, GFP_KERNEL); + ret = ida_alloc_range(&fw_mgmt->id_map, 1, 255, GFP_KERNEL); if (ret < 0) { dev_err(fw_mgmt->parent, "failed to allocate request id (%d)\n", ret); @@ -180,8 +180,7 @@ static int fw_mgmt_load_and_validate_operation(struct fw_mgmt *fw_mgmt, GB_FW_MGMT_TYPE_LOAD_AND_VALIDATE_FW, &request, sizeof(request), NULL, 0); if (ret) { - ida_simple_remove(&fw_mgmt->id_map, - fw_mgmt->intf_fw_request_id); + ida_free(&fw_mgmt->id_map, fw_mgmt->intf_fw_request_id); fw_mgmt->intf_fw_request_id = 0; dev_err(fw_mgmt->parent, "load and validate firmware request failed (%d)\n", @@ -220,7 +219,7 @@ static int fw_mgmt_interface_fw_loaded_operation(struct gb_operation *op) return -ENODEV; } - ida_simple_remove(&fw_mgmt->id_map, fw_mgmt->intf_fw_request_id); + ida_free(&fw_mgmt->id_map, fw_mgmt->intf_fw_request_id); fw_mgmt->intf_fw_request_id = 0; fw_mgmt->intf_fw_status = request->status; fw_mgmt->intf_fw_major = le16_to_cpu(request->major); @@ -316,7 +315,7 @@ static int fw_mgmt_backend_fw_update_operation(struct fw_mgmt *fw_mgmt, } /* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */ - ret = ida_simple_get(&fw_mgmt->id_map, 1, 256, GFP_KERNEL); + ret = ida_alloc_range(&fw_mgmt->id_map, 1, 255, GFP_KERNEL); if (ret < 0) { dev_err(fw_mgmt->parent, "failed to allocate request id (%d)\n", ret); @@ -330,8 +329,7 @@ static int fw_mgmt_backend_fw_update_operation(struct fw_mgmt *fw_mgmt, GB_FW_MGMT_TYPE_BACKEND_FW_UPDATE, &request, sizeof(request), NULL, 0); if (ret) { - ida_simple_remove(&fw_mgmt->id_map, - fw_mgmt->backend_fw_request_id); + ida_free(&fw_mgmt->id_map, fw_mgmt->backend_fw_request_id); fw_mgmt->backend_fw_request_id = 0; dev_err(fw_mgmt->parent, "backend %s firmware update request failed (%d)\n", tag, @@ -369,7 +367,7 @@ static int fw_mgmt_backend_fw_updated_operation(struct gb_operation *op) return -ENODEV; } - ida_simple_remove(&fw_mgmt->id_map, fw_mgmt->backend_fw_request_id); + ida_free(&fw_mgmt->id_map, fw_mgmt->backend_fw_request_id); fw_mgmt->backend_fw_request_id = 0; fw_mgmt->backend_fw_status = request->status; @@ -617,7 +615,7 @@ int gb_fw_mgmt_connection_init(struct gb_connection *connection) if (ret) goto err_list_del; - minor = ida_simple_get(&fw_mgmt_minors_map, 0, NUM_MINORS, GFP_KERNEL); + minor = ida_alloc_max(&fw_mgmt_minors_map, NUM_MINORS - 1, GFP_KERNEL); if (minor < 0) { ret = minor; goto err_connection_disable; @@ -645,7 +643,7 @@ int gb_fw_mgmt_connection_init(struct gb_connection *connection) err_del_cdev: cdev_del(&fw_mgmt->cdev); err_remove_ida: - ida_simple_remove(&fw_mgmt_minors_map, minor); + ida_free(&fw_mgmt_minors_map, minor); err_connection_disable: gb_connection_disable(connection); err_list_del: @@ -669,7 +667,7 @@ void gb_fw_mgmt_connection_exit(struct gb_connection *connection) device_destroy(&fw_mgmt_class, fw_mgmt->dev_num); cdev_del(&fw_mgmt->cdev); - ida_simple_remove(&fw_mgmt_minors_map, MINOR(fw_mgmt->dev_num)); + ida_free(&fw_mgmt_minors_map, MINOR(fw_mgmt->dev_num)); /* * Disallow any new ioctl operations on the char device and wait for diff --git a/drivers/staging/greybus/gbphy.c b/drivers/staging/greybus/gbphy.c index 6a7d8cf2a1eb..93b74a236ab1 100644 --- a/drivers/staging/greybus/gbphy.c +++ b/drivers/staging/greybus/gbphy.c @@ -46,7 +46,7 @@ static void gbphy_dev_release(struct device *dev) { struct gbphy_device *gbphy_dev = to_gbphy_dev(dev); - ida_simple_remove(&gbphy_id, gbphy_dev->id); + ida_free(&gbphy_id, gbphy_dev->id); kfree(gbphy_dev); } @@ -225,13 +225,13 @@ static struct gbphy_device *gb_gbphy_create_dev(struct gb_bundle *bundle, int retval; int id; - id = ida_simple_get(&gbphy_id, 1, 0, GFP_KERNEL); + id = ida_alloc_min(&gbphy_id, 1, GFP_KERNEL); if (id < 0) return ERR_PTR(id); gbphy_dev = kzalloc(sizeof(*gbphy_dev), GFP_KERNEL); if (!gbphy_dev) { - ida_simple_remove(&gbphy_id, id); + ida_free(&gbphy_id, id); return ERR_PTR(-ENOMEM); } diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c index d7b39f3bb652..bb33379b5297 100644 --- a/drivers/staging/greybus/loopback.c +++ b/drivers/staging/greybus/loopback.c @@ -1028,7 +1028,7 @@ static int gb_loopback_probe(struct gb_bundle *bundle, gb->file = debugfs_create_file(name, S_IFREG | 0444, gb_dev.root, gb, &gb_loopback_dbgfs_latency_fops); - gb->id = ida_simple_get(&loopback_ida, 0, 0, GFP_KERNEL); + gb->id = ida_alloc(&loopback_ida, GFP_KERNEL); if (gb->id < 0) { retval = gb->id; goto out_debugfs_remove; @@ -1079,7 +1079,7 @@ static int gb_loopback_probe(struct gb_bundle *bundle, out_connection_disable: gb_connection_disable(connection); out_ida_remove: - ida_simple_remove(&loopback_ida, gb->id); + ida_free(&loopback_ida, gb->id); out_debugfs_remove: debugfs_remove(gb->file); out_connection_destroy: @@ -1121,7 +1121,7 @@ static void gb_loopback_disconnect(struct gb_bundle *bundle) spin_unlock_irqrestore(&gb_dev.lock, flags); device_unregister(gb->dev); - ida_simple_remove(&loopback_ida, gb->id); + ida_free(&loopback_ida, gb->id); gb_connection_destroy(gb->connection); kfree(gb); diff --git a/drivers/staging/greybus/raw.c b/drivers/staging/greybus/raw.c index b9c6eff7cdc1..836d35e5fa85 100644 --- a/drivers/staging/greybus/raw.c +++ b/drivers/staging/greybus/raw.c @@ -181,7 +181,7 @@ static int gb_raw_probe(struct gb_bundle *bundle, raw->connection = connection; greybus_set_drvdata(bundle, raw); - minor = ida_simple_get(&minors, 0, 0, GFP_KERNEL); + minor = ida_alloc(&minors, GFP_KERNEL); if (minor < 0) { retval = minor; goto error_connection_destroy; @@ -214,7 +214,7 @@ static int gb_raw_probe(struct gb_bundle *bundle, gb_connection_disable(connection); error_remove_ida: - ida_simple_remove(&minors, minor); + ida_free(&minors, minor); error_connection_destroy: gb_connection_destroy(connection); @@ -235,7 +235,7 @@ static void gb_raw_disconnect(struct gb_bundle *bundle) device_destroy(&raw_class, raw->dev); cdev_del(&raw->cdev); gb_connection_disable(connection); - ida_simple_remove(&minors, MINOR(raw->dev)); + ida_free(&minors, MINOR(raw->dev)); gb_connection_destroy(connection); mutex_lock(&raw->list_lock); diff --git a/drivers/staging/greybus/vibrator.c b/drivers/staging/greybus/vibrator.c index 227e18d92a95..89bef8045549 100644 --- a/drivers/staging/greybus/vibrator.c +++ b/drivers/staging/greybus/vibrator.c @@ -153,7 +153,7 @@ static int gb_vibrator_probe(struct gb_bundle *bundle, * there is a "real" device somewhere in the kernel for this, but I * can't find it at the moment... */ - vib->minor = ida_simple_get(&minors, 0, 0, GFP_KERNEL); + vib->minor = ida_alloc(&minors, GFP_KERNEL); if (vib->minor < 0) { retval = vib->minor; goto err_connection_disable; @@ -173,7 +173,7 @@ static int gb_vibrator_probe(struct gb_bundle *bundle, return 0; err_ida_remove: - ida_simple_remove(&minors, vib->minor); + ida_free(&minors, vib->minor); err_connection_disable: gb_connection_disable(connection); err_connection_destroy: @@ -197,7 +197,7 @@ static void gb_vibrator_disconnect(struct gb_bundle *bundle) turn_off(vib); device_unregister(vib->dev); - ida_simple_remove(&minors, vib->minor); + ida_free(&minors, vib->minor); gb_connection_disable(vib->connection); gb_connection_destroy(vib->connection); kfree(vib); -- 2.43.0

2 years, 5 months

[PATCH 2/2] leds: make flash and multicolor dependencies unconditional

by Arnd Bergmann

From: Arnd Bergmann <arnd(a)arndb.de> Along the same lines as making devm_led_classdev_register() declared extern unconditional, do the same thing for the two sub-classes that have similar stubs. The users of these interfaces go to great lengths to allow building with both the generic leds API and the extended version, but realistically there is not much use in this, so just simplify it to always rely on it and remove the confusing fallback logic. Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> --- drivers/leds/Kconfig | 4 ++-- drivers/leds/flash/Kconfig | 4 ++-- drivers/staging/greybus/Kconfig | 2 +- drivers/staging/greybus/light.c | 21 -------------------- include/linux/led-class-flash.h | 24 ----------------------- include/linux/led-class-multicolor.h | 29 ---------------------------- 6 files changed, 5 insertions(+), 79 deletions(-) diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index d721b254e1e4..9613a45a35bd 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -395,7 +395,7 @@ config LEDS_LP3952 config LEDS_LP50XX tristate "LED Support for TI LP5036/30/24/18/12/09 LED driver chip" depends on LEDS_CLASS && REGMAP_I2C - depends on LEDS_CLASS_MULTICOLOR || !LEDS_CLASS_MULTICOLOR + depends on LEDS_CLASS_MULTICOLOR help If you say yes here you get support for the Texas Instruments LP5036, LP5030, LP5024, LP5018, LP5012 and LP5009 LED driver. @@ -406,7 +406,7 @@ config LEDS_LP50XX config LEDS_LP55XX_COMMON tristate "Common Driver for TI/National LP5521/5523/55231/5562/8501" depends on LEDS_CLASS - depends on LEDS_CLASS_MULTICOLOR || !LEDS_CLASS_MULTICOLOR + depends on LEDS_CLASS_MULTICOLOR depends on OF depends on I2C select FW_LOADER diff --git a/drivers/leds/flash/Kconfig b/drivers/leds/flash/Kconfig index 4e08dbc05709..b95f90cd5749 100644 --- a/drivers/leds/flash/Kconfig +++ b/drivers/leds/flash/Kconfig @@ -51,8 +51,8 @@ config LEDS_MAX77693 config LEDS_MT6360 tristate "LED Support for Mediatek MT6360 PMIC" depends on LEDS_CLASS && OF - depends on LEDS_CLASS_FLASH || !LEDS_CLASS_FLASH - depends on LEDS_CLASS_MULTICOLOR || !LEDS_CLASS_MULTICOLOR + depends on LEDS_CLASS_FLASH + depends on LEDS_CLASS_MULTICOLOR depends on V4L2_FLASH_LED_CLASS || !V4L2_FLASH_LED_CLASS depends on MFD_MT6360 help diff --git a/drivers/staging/greybus/Kconfig b/drivers/staging/greybus/Kconfig index 927cfa4bc989..1e745a8d439c 100644 --- a/drivers/staging/greybus/Kconfig +++ b/drivers/staging/greybus/Kconfig @@ -64,7 +64,7 @@ config GREYBUS_HID config GREYBUS_LIGHT tristate "Greybus LED Class driver" - depends on LEDS_CLASS + depends on LEDS_CLASS_FLASH help Select this option if you have a device that follows the Greybus LED Class specification. diff --git a/drivers/staging/greybus/light.c b/drivers/staging/greybus/light.c index 87d36948c610..d62f97249aca 100644 --- a/drivers/staging/greybus/light.c +++ b/drivers/staging/greybus/light.c @@ -29,13 +29,9 @@ struct gb_channel { struct attribute_group *attr_group; const struct attribute_group **attr_groups; struct led_classdev *led; -#if IS_REACHABLE(CONFIG_LEDS_CLASS_FLASH) struct led_classdev_flash fled; struct led_flash_setting intensity_uA; struct led_flash_setting timeout_us; -#else - struct led_classdev cled; -#endif struct gb_light *light; bool is_registered; bool releasing; @@ -84,7 +80,6 @@ static bool is_channel_flash(struct gb_channel *channel) | GB_CHANNEL_MODE_INDICATOR)); } -#if IS_REACHABLE(CONFIG_LEDS_CLASS_FLASH) static struct gb_channel *get_channel_from_cdev(struct led_classdev *cdev) { struct led_classdev_flash *fled_cdev = lcdev_to_flcdev(cdev); @@ -153,22 +148,6 @@ static int __gb_lights_flash_brightness_set(struct gb_channel *channel) return __gb_lights_flash_intensity_set(channel, intensity); } -#else -static struct gb_channel *get_channel_from_cdev(struct led_classdev *cdev) -{ - return container_of(cdev, struct gb_channel, cled); -} - -static struct led_classdev *get_channel_cdev(struct gb_channel *channel) -{ - return &channel->cled; -} - -static int __gb_lights_flash_brightness_set(struct gb_channel *channel) -{ - return 0; -} -#endif static int gb_lights_color_set(struct gb_channel *channel, u32 color); static int gb_lights_fade_set(struct gb_channel *channel); diff --git a/include/linux/led-class-flash.h b/include/linux/led-class-flash.h index 612b4cab3819..36df927ec4b7 100644 --- a/include/linux/led-class-flash.h +++ b/include/linux/led-class-flash.h @@ -85,7 +85,6 @@ static inline struct led_classdev_flash *lcdev_to_flcdev( return container_of(lcdev, struct led_classdev_flash, led_cdev); } -#if IS_ENABLED(CONFIG_LEDS_CLASS_FLASH) /** * led_classdev_flash_register_ext - register a new object of LED class with * init data and with support for flash LEDs @@ -116,29 +115,6 @@ int devm_led_classdev_flash_register_ext(struct device *parent, void devm_led_classdev_flash_unregister(struct device *parent, struct led_classdev_flash *fled_cdev); -#else - -static inline int led_classdev_flash_register_ext(struct device *parent, - struct led_classdev_flash *fled_cdev, - struct led_init_data *init_data) -{ - return 0; -} - -static inline void led_classdev_flash_unregister(struct led_classdev_flash *fled_cdev) {}; -static inline int devm_led_classdev_flash_register_ext(struct device *parent, - struct led_classdev_flash *fled_cdev, - struct led_init_data *init_data) -{ - return 0; -} - -static inline void devm_led_classdev_flash_unregister(struct device *parent, - struct led_classdev_flash *fled_cdev) -{}; - -#endif /* IS_ENABLED(CONFIG_LEDS_CLASS_FLASH) */ - static inline int led_classdev_flash_register(struct device *parent, struct led_classdev_flash *fled_cdev) { diff --git a/include/linux/led-class-multicolor.h b/include/linux/led-class-multicolor.h index 210d57bcd767..db9f34c6736e 100644 --- a/include/linux/led-class-multicolor.h +++ b/include/linux/led-class-multicolor.h @@ -30,7 +30,6 @@ static inline struct led_classdev_mc *lcdev_to_mccdev( return container_of(led_cdev, struct led_classdev_mc, led_cdev); } -#if IS_ENABLED(CONFIG_LEDS_CLASS_MULTICOLOR) /** * led_classdev_multicolor_register_ext - register a new object of led_classdev * class with support for multicolor LEDs @@ -64,34 +63,6 @@ int devm_led_classdev_multicolor_register_ext(struct device *parent, void devm_led_classdev_multicolor_unregister(struct device *parent, struct led_classdev_mc *mcled_cdev); -#else - -static inline int led_classdev_multicolor_register_ext(struct device *parent, - struct led_classdev_mc *mcled_cdev, - struct led_init_data *init_data) -{ - return 0; -} - -static inline void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev) {}; -static inline int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev, - enum led_brightness brightness) -{ - return 0; -} - -static inline int devm_led_classdev_multicolor_register_ext(struct device *parent, - struct led_classdev_mc *mcled_cdev, - struct led_init_data *init_data) -{ - return 0; -} - -static inline void devm_led_classdev_multicolor_unregister(struct device *parent, - struct led_classdev_mc *mcled_cdev) -{}; - -#endif /* IS_ENABLED(CONFIG_LEDS_CLASS_MULTICOLOR) */ static inline int led_classdev_multicolor_register(struct device *parent, struct led_classdev_mc *mcled_cdev) -- 2.39.2

2 years, 5 months

[PATCH 00/33] spi: get rid of some legacy macros

by Uwe Kleine-König

Hello, In commit 8caab75fd2c2 ("spi: Generalize SPI "master" to "controller"") some functions were renamed. Further some compat defines were introduced to map the old names to the new ones. In this series all drivers still using the old names are changed to use the new ones and then in patch #32 the compat defines are dropped. Variables and struct members of type pointer to struct spi_controller that were named "master" (matching the old name of spi_controller) were renamed to "ctlr", which slightly increased the count of touched lines, but is nice for consistency. Patch #18 and #19 touch the same driver, otherwise the patches #1 - #31 are pairwise independent and could be applied by their respective maintainers. The alternative is to let all patches go via the spi tree. Mark, what's your preference here? Patch #33 updates the documentation. (This one is a bit fuzzy, because it also does some s/master/host/ which doesn't match the remainder of the series). Also patch #18 is an improvement I noticed while touching this driver that doesn't match the series' topic. I still kept it included here. If you should not like it, it can just be dropped. Best regards Uwe Uwe Kleine-König (33): fpga: ice40-spi: Follow renaming of SPI "master" to "controller" ieee802154: ca8210: Follow renaming of SPI "master" to "controller" iio: adc: ad_sigma_delta: Follow renaming of SPI "master" to "controller" Input: pxspad - follow renaming of SPI "master" to "controller" Input: synaptics-rmi4 - follow renaming of SPI "master" to "controller" media: mgb4: Follow renaming of SPI "master" to "controller" media: netup_unidvb: Follow renaming of SPI "master" to "controller" media: usb/msi2500: Follow renaming of SPI "master" to "controller" media: v4l2-subdev: Follow renaming of SPI "master" to "controller" misc: gehc-achc: Follow renaming of SPI "master" to "controller" mmc: mmc_spi: Follow renaming of SPI "master" to "controller" mtd: dataflash: Follow renaming of SPI "master" to "controller" mtd: rawnand: fsl_elbc: Let .probe retry if local bus is missing net: ks8851: Follow renaming of SPI "master" to "controller" net: vertexcom: mse102x: Follow renaming of SPI "master" to "controller" platform/chrome: cros_ec_spi: Follow renaming of SPI "master" to "controller" spi: bitbang: Follow renaming of SPI "master" to "controller" spi: cadence-quadspi: Don't emit error message on allocation error spi: cadence-quadspi: Follow renaming of SPI "master" to "controller" spi: cavium: Follow renaming of SPI "master" to "controller" spi: geni-qcom: Follow renaming of SPI "master" to "controller" spi: loopback-test: Follow renaming of SPI "master" to "controller" spi: slave-mt27xx: Follow renaming of SPI "master" to "controller" spi: spidev: Follow renaming of SPI "master" to "controller" staging: fbtft: Follow renaming of SPI "master" to "controller" staging: greybus: spi: Follow renaming of SPI "master" to "controller" tpm_tis_spi: Follow renaming of SPI "master" to "controller" usb: gadget: max3420_udc: Follow renaming of SPI "master" to "controller" video: fbdev: mmp: Follow renaming of SPI "master" to "controller" wifi: libertas: Follow renaming of SPI "master" to "controller" spi: fsl-lib: Follow renaming of SPI "master" to "controller" spi: Drop compat layer from renaming "master" to "controller" Documentation: spi: Update documentation for renaming "master" to "controller" .../driver-api/driver-model/devres.rst | 2 +- Documentation/spi/spi-summary.rst | 74 +++++++++---------- drivers/char/tpm/tpm_tis_spi_main.c | 4 +- drivers/fpga/ice40-spi.c | 4 +- drivers/iio/adc/ad_sigma_delta.c | 14 ++-- drivers/input/joystick/psxpad-spi.c | 4 +- drivers/input/rmi4/rmi_spi.c | 2 +- drivers/media/pci/mgb4/mgb4_core.c | 14 ++-- .../media/pci/netup_unidvb/netup_unidvb_spi.c | 48 ++++++------ drivers/media/usb/msi2500/msi2500.c | 38 +++++----- drivers/media/v4l2-core/v4l2-spi.c | 4 +- drivers/misc/gehc-achc.c | 8 +- drivers/mmc/host/mmc_spi.c | 6 +- drivers/mtd/devices/mtd_dataflash.c | 2 +- drivers/mtd/nand/raw/fsl_elbc_nand.c | 3 +- drivers/net/ethernet/micrel/ks8851_spi.c | 4 +- drivers/net/ethernet/vertexcom/mse102x.c | 2 +- drivers/net/ieee802154/ca8210.c | 2 +- .../net/wireless/marvell/libertas/if_spi.c | 2 +- drivers/platform/chrome/cros_ec_spi.c | 8 +- drivers/spi/spi-ath79.c | 4 +- drivers/spi/spi-bitbang.c | 64 ++++++++-------- drivers/spi/spi-butterfly.c | 6 +- drivers/spi/spi-cadence-quadspi.c | 7 +- drivers/spi/spi-cavium.c | 6 +- drivers/spi/spi-cavium.h | 2 +- drivers/spi/spi-davinci.c | 6 +- drivers/spi/spi-fsl-lib.c | 14 ++-- drivers/spi/spi-geni-qcom.c | 2 +- drivers/spi/spi-gpio.c | 2 +- drivers/spi/spi-lm70llp.c | 6 +- drivers/spi/spi-loopback-test.c | 4 +- drivers/spi/spi-oc-tiny.c | 6 +- drivers/spi/spi-omap-uwire.c | 4 +- drivers/spi/spi-slave-mt27xx.c | 2 +- drivers/spi/spi-xilinx.c | 4 +- drivers/spi/spi-xtensa-xtfpga.c | 2 +- drivers/spi/spi.c | 2 +- drivers/spi/spidev.c | 2 +- drivers/staging/fbtft/fbtft-core.c | 4 +- drivers/staging/greybus/spilib.c | 66 ++++++++--------- drivers/usb/gadget/udc/max3420_udc.c | 2 +- drivers/video/fbdev/mmp/hw/mmp_spi.c | 26 +++---- include/linux/spi/spi.h | 20 +---- include/linux/spi/spi_bitbang.h | 2 +- include/media/v4l2-common.h | 6 +- 46 files changed, 249 insertions(+), 267 deletions(-) base-commit: 8d04a7e2ee3fd6aabb8096b00c64db0d735bc874 -- 2.43.0

2 years, 5 months

[PATCH] staging: greybus: gbphy: make gbphy_bus_type const

by Greg Kroah-Hartman

Now that the driver core can properly handle constant struct bus_type, move the gbphy_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Johan Hovold <johan(a)kernel.org> Cc: Alex Elder <elder(a)kernel.org> Cc: greybus-dev(a)lists.linaro.org Cc: linux-staging(a)lists.linux.dev Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/staging/greybus/gbphy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/greybus/gbphy.c b/drivers/staging/greybus/gbphy.c index 6a7d8cf2a1eb..1c41b008ba39 100644 --- a/drivers/staging/greybus/gbphy.c +++ b/drivers/staging/greybus/gbphy.c @@ -182,7 +182,7 @@ static void gbphy_dev_remove(struct device *dev) pm_runtime_dont_use_autosuspend(dev); } -static struct bus_type gbphy_bus_type = { +static const struct bus_type gbphy_bus_type = { .name = "gbphy", .match = gbphy_dev_match, .probe = gbphy_dev_probe, -- 2.43.0

2 years, 6 months

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