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The pointer to a struct class in a struct device should never be used to change anything in that class. So mark it as constant to enforce this requirement. This requires a few minor changes to some internal driver core functions to enforce the const * being used here now. Cc: "Rafael J. Wysocki" <rafael@kernel.org> Link: https://lore.kernel.org/r/20230313181843.1207845-11-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>