On 3/30/20 1:40 PM, Alexey Brodkin wrote: > Hi Andy, Geert, > >> -----Original Message----- >> From: Andy Shevchenko <andy.shevchenko@xxxxxxxxx> >> Sent: Monday, March 30, 2020 4:28 PM >> To: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>; Alexey Brodkin <abrodkin@xxxxxxxxxxxx> >> Cc: Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx> >> Subject: Re: Build regressions/improvements in v5.6 >> >> On Mon, Mar 30, 2020 at 4:26 PM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: >>> >>> Hi Andy, >>> >>> On Mon, Mar 30, 2020 at 3:08 PM Andy Shevchenko >>> <andy.shevchenko@xxxxxxxxx> wrote: >>>> On Mon, Mar 30, 2020 at 12:00 PM Geert Uytterhoeven >>>> <geert@xxxxxxxxxxxxxx> wrote: >>>>> Below is the list of build error/warning regressions/improvements in >>>>> v5.6[1] compared to v5.5[2]. >>>> >>>>> + /kisskb/src/include/linux/dev_printk.h: warning: format '%zu' expects argument of type >> 'size_t', but argument 8 has type 'unsigned int' [-Wformat=]: => 232:23 >>>> >>>> This is interesting... I checked all dev_WARN_ONCE() and didn't find an issue. >>> >>> arcv2/axs103_smp_defconfig >>> >>> It's probably due to a broken configuration for the arc toolchain. >> >> Alexey, do have any insight? > > I think I do have some but first I'd like to get it reproduced myself. > I just built v5.6 with help of both GCC 8.3.1- & 9.3.1-based toolchains > and didn't see a single warning. So I guess I was doing something wrong. > > FWIW > > 1. My GCC 8.3.1 toolchain was exactly this: > https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-2019.09-release/arc_gnu_2019.09_prebuilt_uclibc_le_archs_linux_install.tar.gz > > 2. Linux kernel is vanilla v5.6.0 > > 3. Configured and built as simple as: > make axs103_smp_defconfig && make It seems the build service is using a arc toolchain built in 2016 :-) # < /opt/cross/kisskb/br-arcle-hs38-full-2016.08-613-ge98b4dd/bin/arc-linux-gcc Call it Murphy's law, same year a little later I'd fixed the same issue in gcc [1] [1] http://lists.infradead.org/pipermail/linux-snps-arc/2016-October/001661.html @Guenter could you please consider updating the ARC tools. FWIW you can build stuff off upstream gcc/binutils using build system of your choice. Thx, -Vineet _______________________________________________ linux-snps-arc mailing list linux-snps-arc@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-snps-arc
