On Sat, Sep 07, 2019 at 04:54:55PM -0700, Andrey Smirnov wrote: > GCC9 for ARM produces the following warnings: > > fastmap.c: In function 'ubi_attach_fastmap': > fastmap.c:700:31: warning: taking address of packed member of 'struct ubi_fm_scan_pool' may result in an unaligned pointer value [-Waddress-of-packed-member] > 700 | ret = scan_pool(ubi, ai, fmpl->pebs, pool_size, &max_sqnum, &lfree); > | ~~~~^~~~~~ > fastmap.c:704:34: warning: taking address of packed member of 'struct ubi_fm_scan_pool' may result in an unaligned pointer value [-Waddress-of-packed-member] > 704 | ret = scan_pool(ubi, ai, fmpl_wl->pebs, wl_pool_size, &max_sqnum, &lfree); > | ~~~~~~~^~~~~~ > > the offending code seems OK and there doesn't seem to be a way to fix > this in code, so disable the warning for that file. > > Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx> > --- Linux disables this warning completely. We just burnt some developer cycles, came to the conclusion that the world isn't perfect, that there's no good (at least good realistic) solution to this problem and that we should just do the same as Linux. Disabling this warning for individual files in which it triggers probably doesn't bring us further. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
