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authorAndres Rodriguez <andresx7@gmail.com>2018-05-10 23:08:45 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-14 17:44:41 +0300
commit7dcc01343e483efda0882456f8361f061a5f416d (patch)
tree5c118e816d686682a60890e9443cd5fb9c93faec /Documentation/driver-api
parent27d5d7dc9aafd6db3d7aeb49cdbfe578fc1b8663 (diff)
downloadlinux-7dcc01343e483efda0882456f8361f061a5f416d.tar.xz
firmware: add firmware_request_nowarn() - load firmware without warnings
Currently the firmware loader only exposes one silent path for querying optional firmware, and that is firmware_request_direct(). This function also disables the sysfs fallback mechanism, which might not always be the desired behaviour [0]. This patch introduces a variations of request_firmware() that enable the caller to disable the undesired warning messages but enables the sysfs fallback mechanism. This is equivalent to adding FW_OPT_NO_WARN to the old behaviour. [0]: https://git.kernel.org/linus/c0cc00f250e1 Signed-off-by: Andres Rodriguez <andresx7@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Luis R. Rodriguez <mcgrof@kernel.org> [mcgrof: used the old API calls as the full rename is not done yet, and add the caller for when FW_LOADER is disabled, enhance documentation ] Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/driver-api')
-rw-r--r--Documentation/driver-api/firmware/request_firmware.rst5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/driver-api/firmware/request_firmware.rst b/Documentation/driver-api/firmware/request_firmware.rst
index d5ec95a7195b..f62bdcbfed5b 100644
--- a/Documentation/driver-api/firmware/request_firmware.rst
+++ b/Documentation/driver-api/firmware/request_firmware.rst
@@ -20,6 +20,11 @@ request_firmware
.. kernel-doc:: drivers/base/firmware_loader/main.c
:functions: request_firmware
+firmware_request_nowarn
+-----------------------
+.. kernel-doc:: drivers/base/firmware_loader/main.c
+ :functions: firmware_request_nowarn
+
request_firmware_direct
-----------------------
.. kernel-doc:: drivers/base/firmware_loader/main.c