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| author | Andres Rodriguez <andresx7@gmail.com> | 2018-05-10 23:08:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-14 17:44:41 +0300 |
| commit | 7dcc01343e483efda0882456f8361f061a5f416d (patch) | |
| tree | 5c118e816d686682a60890e9443cd5fb9c93faec /Documentation/driver-api/firmware/request_firmware.rst | |
| parent | 27d5d7dc9aafd6db3d7aeb49cdbfe578fc1b8663 (diff) | |
| download | linux-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/firmware/request_firmware.rst')
| -rw-r--r-- | Documentation/driver-api/firmware/request_firmware.rst | 5 |
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 |