Hiya, On 3/21/23 00:34, Geert Uytterhoeven wrote: > Hi Randy, > > On Tue, Mar 21, 2023 at 6:38 AM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: >> On 3/20/23 01:21, Geert Uytterhoeven wrote: >>> Below is the list of build error/warning regressions/improvements in >>> v6.3-rc3[1] compared to v6.2[2]. >>> >>> Summarized: >>> - build errors: +9/-14 >>> - build warnings: +4/-1447 >>> >>> JFYI, when comparing v6.3-rc3[1] to v6.3-rc2[3], the summaries are: >>> - build errors: +0/-1 >>> - build warnings: +0/-0 >>> >>> Happy fixing! ;-) >>> >>> Thanks to the linux-next team for providing the build service. >>> >>> [1] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/e8d018dd0257f744ca50a729e3d042cf2ec9da65/ (all 152 configs) >>> [2] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/c9c3395d5e3dcc6daee66c6908354d47bf98cb0c/ (all 152 configs) >>> [3] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/eeac8ede17557680855031c6f305ece2378af326/ (all 152 configs) >>> >>> >>> *** ERRORS *** >>> >>> 9 error regressions: >> >>> + /kisskb/src/drivers/gpu/drm/msm/msm_mdss.c: error: case label does not reduce to an integer constant: => 300:2, 299:2, 296:2 >> >> >> Are these due to the sign bit being set after a shift? >> It looks that way since it is only reported for such values. > > Yep. > >> From the reports on the build server, it only happens when building with gcc5. >> I don't have the ability to build with gcc5 or I would test it. > > I deliberately installed gcc-5.5.0-nolibc/aarch64-linux to reproduce it > (gcc5 on x86 didn't reproduce). Yes, I installed that same compiler. When I tried to use it, I got: /opt/crosstool/gcc-5.5.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc: unknown C compiler scripts/Kconfig.include:44: Sorry, this C compiler is not supported. and I didn't try to track down what that means or what is causing it... >> @Rob and other drm/msm people, what do you think about this? >> (or is this already fixed somewhere but not yet in linux-next?) > > Thanks, I posted a similar fix two weeks ago: > https://lore.kernel.org/all/20230306090633.65918-1-geert+renesas@xxxxxxxxx OK, I replied to that one. Thanks. -- ~Randy
