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Date: Tue, 21 Nov 2023 17:30:22 -0800
From: Jakub Kicinski <>
To: Kory Maincent <>
Cc: Luis Chamberlain <>, Russ Weight
 <>, Greg Kroah-Hartman <>,
 "Rafael J. Wysocki" <>, Thomas Petazzoni
 <>,, Conor Dooley
 <>, Andrew Lunn <>,
Subject: Re: [PATCH net-next v2] firmware_loader: Expand Firmware upload
 error codes with firmware invalid error

On Tue, 21 Nov 2023 11:50:35 +0100 Kory Maincent wrote:
> No error code are available to signal an invalid firmware content.
> Drivers that can check the firmware content validity can not return this
> specific failure to the user-space
> Expand the firmware error code with an additional code:
> - "firmware invalid" code which can be used when the provided firmware
>   is invalid

Any idea what this is?

lib/test_firmware.o: warning: objtool: test_fw_upload_prepare() falls through to next function __cfi_test_fw_upload_cancel()

My build shows this on an incremental clang 17 build.

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