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Technically it is fine (on all current Linux architectures) to store a pointer in an unsigned long variable. However this needs explicit casting which is an easy source for type mismatches. By replacing the plain unsigned long .driver_data in struct zorro_device_id by an anonymous union, most of the casting can be dropped. There is still some implicit casting involved (between a void * and a driver specific pointer type), but that's better than the approach to store a pointer in an unsigned long variable as this doesn't lose the information that the data being pointed to is const. All users of struct zorro_device_id are initialized in a way that is compatible with the new definition, so no adaptions are needed there. Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Max Staudt <max@enpas.org> Acked-by: Helge Deller <deller@gmx.de> Link: https://patch.msgid.link/49576a7501128c93ef318566ed7faefce163f1fd.1779803053.git.u.kleine-koenig@baylibre.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
81 lines
2 KiB
81 lines
2 KiB