kernel/linux.git/drivers/firmware/dmi-id.c, branch linux-7.1.y

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

firmware/dmi: Include product_family info to modalias

2026-02-09T12:27:16+00:00

Some platforms rely on modalias to customize configuration, the product family helps to identify the hardware. Add product_family to modalias for better utilization. This patch mimics commit e26f023e01ef ("firmware/dmi: Include product_sku info to modalias") that did the same for product_sku, and commit f97a2103f1a7 ("firmware: dmi: Move product_sku info to the end of the modalias") that fixed regressions caused by the added field not being in the end of the list. Signed-off-by: Antoine Lassagne Signed-off-by: Jean Delvare

firmware: dmi-id: add a release callback function

2024-04-08T07:34:24+00:00

dmi_class uses kfree() as the .release function, but that now causes a warning with clang-16 as it violates control flow integrity (KCFI) rules: drivers/firmware/dmi-id.c:174:17: error: cast from 'void (*)(const void *)' to 'void (*)(struct device *)' converts to incompatible function type [-Werror,-Wcast-function-type-strict] 174 | .dev_release = (void(*)(struct device *)) kfree, Add an explicit function to call kfree() instead. Fixes: 4f5c791a850e ("DMI-based module autoloading") Link: https://lore.kernel.org/lkml/20240213100238.456912-1-arnd@kernel.org/ Signed-off-by: Arnd Bergmann Signed-off-by: Jean Delvare

driver core: make struct class.dev_uevent() take a const *

2022-11-24T16:12:15+00:00

The dev_uevent() in struct class should not be modifying the device that is passed into it, so mark it as a const * and propagate the function signature changes out into all relevant subsystems that use this callback. Cc: Jens Axboe Cc: Luis Chamberlain Cc: Russ Weight Cc: Jean Delvare Cc: Johan Hovold Cc: Jason Gunthorpe Cc: Leon Romanovsky Cc: Karsten Keil Cc: Mauro Carvalho Chehab Cc: Keith Busch Cc: Christoph Hellwig Cc: Sagi Grimberg Cc: Dominik Brodowski Cc: "David S. Miller" Cc: Eric Dumazet Cc: Jakub Kicinski Cc: Paolo Abeni Cc: Johannes Berg Cc: Wolfram Sang Cc: Raed Salem Cc: Chen Zhongjin Cc: Tetsuo Handa Cc: Avihai Horon Cc: "Matthew Wilcox (Oracle)" Cc: Alan Stern Cc: Colin Ian King Cc: Geert Uytterhoeven Cc: Jakob Koschel Cc: Antoine Tenart Cc: Frederic Weisbecker Cc: Wang Yufen Cc: linux-block@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-media@vger.kernel.org Cc: linux-nvme@lists.infradead.org Cc: linux-pm@vger.kernel.org Cc: linux-rdma@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Acked-by: Sebastian Reichel Acked-by: Rafael J. Wysocki Link: https://lore.kernel.org/r/20221123122523.1332370-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman

firmware: dmi: Move product_sku info to the end of the modalias

2021-09-02T15:28:53+00:00

Commit e26f023e01ef ("firmware/dmi: Include product_sku info to modalias") added a new field to the modalias in the middle of the modalias, breaking some existing udev/hwdb matches on the whole modalias without a wildcard ('*') in between the pvr and rvn fields. All modalias matches in e.g. : https://github.com/systemd/systemd/blob/main/hwdb.d/60-sensor.hwdb deliberately end in ':*' so that new fields can be added at *the end* of the modalias, but adding a new field in the middle like this breaks things. Move the new sku field to the end of the modalias to fix some hwdb entries no longer matching. The new sku field has already been put to use in 2 new hwdb entries: sensor:modalias:platform:HID-SENSOR-200073:dmi:*svnDell*:sku0A3E:* ACCEL_LOCATION=base sensor:modalias:platform:HID-SENSOR-200073:dmi:*svnDell*:sku0B0B:* ACCEL_LOCATION=base The wildcard use before and after the sku in these matches means that they should keep working with the sku moved to the end. Note that there is a second instance of in essence the same problem, commit f5152f4ded3c ("firmware/dmi: Report DMI Bios & EC firmware release") Added 2 new br and efr fields in the middle of the modalias. This too breaks some hwdb modalias matches, but this has gone unnoticed for over a year. So some newer hwdb modalias matches actually depend on these fields being in the middle of the string. Moving these to the end now would break 3 hwdb entries, while fixing 8 entries. Since there is no good answer for the new br and efr fields I have chosen to leave these as is. Instead I'll submit a hwdb update to put a wildcard at the place where these fields may or may not be present depending on the kernel version. BugLink: https://github.com/systemd/systemd/issues/20550 Link: https://github.com/systemd/systemd/pull/20562 Fixes: e26f023e01ef ("firmware/dmi: Include product_sku info to modalias") Cc: stable@vger.kernel.org Cc: Kai-Chuan Hsieh Cc: Erwan Velu Signed-off-by: Hans de Goede Signed-off-by: Jean Delvare

firmware/dmi: Include product_sku info to modalias

2020-10-28T08:51:50+00:00

Some Dell platforms rely on modalias to customize configuration, the product sku can be more specific for the hardware. Add product_sku to modalias for better utilization. Signed-off-by: Kai-Chuan Hsieh Signed-off-by: Jean Delvare

firmware/dmi: Report DMI Bios & EC firmware release

2020-06-06T09:35:50+00:00

Some vendors like HPe or Dell, encode the release version of their BIOS in the "System BIOS {Major|Minor} Release" fields of Type 0. This information is used to know which bios release actually runs. It could be used for some quirks, debugging sessions or inventory tasks. A typical output for a Dell system running the 65.27 bios is : [root@t1700 ~]# cat /sys/devices/virtual/dmi/id/bios_release 65.27 [root@t1700 ~]# Servers that have a BMC encode the release version of their firmware in the "Embedded Controller Firmware {Major|Minor} Release" fields of Type 0. This information is used to know which BMC release actually runs. It could be used for some quirks, debugging sessions or inventory tasks. A typical output for a Dell system running the 3.75 bmc release is : [root@t1700 ~]# cat /sys/devices/virtual/dmi/id/ec_firmware_release 3.75 [root@t1700 ~]# Signed-off-by: Erwan Velu Signed-off-by: Jean Delvare

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191

2019-05-30T18:29:21+00:00

Based on 1 normalized pattern(s): licensed under gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 99 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Steve Winslow Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170027.163048684@linutronix.de Signed-off-by: Greg Kroah-Hartman

firmware: dmi: Add access to the SKU ID string

2018-06-17T12:09:42+00:00

This is used in some systems from user space for determining the identity of the device. Expose this as a file so that that user-space tools don't need to read from /sys/firmware/dmi/tables/DMI Signed-off-by: Simon Glass Signed-off-by: Jean Delvare