Re: [PATCH v2 2/2] net: macb: fix format-truncation warning

[Sean Chang]

On Wed, Feb 18, 2026 at 4:33 AM Andrew Lunn <andrew@xxxxxxx> wrote:
> > >
> > > Given the other patches in there series, i have to wounder, is the
> > > diagnostic analysis correct? Or is the RISC-V toolchain buggy?
> > >
> >
> > I retry the different methods, I found that when I directly compile
> > the macb_main.c, it can trigger the same error, and I already prove
> > the different compiler will reach the same result, so it is not a bug
> > of the compiler.
> >
> > I also found that the x86_64 defconfig does not enable CONFIG_MACB
> > because it requires CONFIG_COMMON_CLK (which is also disabled by
> > default on x86), whereas the RISC-V defconfig has both enabled.
>
> arm and arm64 are much more similar to risc-v than x86. You should
> test with those compilers. However, make allmodconfig will get you the
> common clk code on x86. Most build testing is done with this
> configuration, including the netdev CI.
>

Thanks for your suggestion to use the "allmodconfig" before the build.
I running the command: "make ARCH=arm64 CROSS_COMPILE=aarch64-
linux-gnu- KCFLAGS="-Wno-error" W=1 C=1 modules -j$(nproc) 2>&1
| tee build.log" and "make ARCH=arm CROSS_COMPILE=arm-linux-
gnueabihf- KCFLAGS="-Wno-error" W=1 C=1 modules -j$(nproc) 2>&1
| tee build.log", it throws the same warning -> [-Wformat-truncation=], so
It proves that even if I switch to a different platform, like arm, arm32,
x86_64, riscv64, it still shows the same warning.

Best regards,
Sean