linux-kernel - Re: [PATCH] clk: renesas: rzv2h-cpg: Fix undefined reference to r9a09g057_cpg

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Message-ID: <CA+V-a8tLzKtWpWAKfLi7zMyGCvKKq4+iggtKtNrWo0aMdKb7Fg@mail.gmail.com>
Date: Mon, 19 Aug 2024 16:43:44 +0100
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>, 
	linux-renesas-soc@...r.kernel.org, linux-clk@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Biju Das <biju.das.jz@...renesas.com>, 
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>, 
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>, kernel test robot <lkp@...el.com>
Subject: Re: [PATCH] clk: renesas: rzv2h-cpg: Fix undefined reference to r9a09g057_cpg_info

On Mon, Aug 19, 2024 at 4:11 PM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>
> Hi Prabhakar,
>
> On Mon, Aug 5, 2024 at 11:58 AM Prabhakar <prabhakar.csengg@...il.com> wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> >
> > Address randconfig build issue where the linker reports an undefined
> > reference to `r9a09g057_cpg_info`. The error occurs when
> > CONFIG_CLK_R9A09G057 is not defined, leading to the inclusion of the
> > device match entry without the corresponding data. By adding a
> > preprocessor condition to the device match table, the entry for
> > r9a09g057 is included only when CONFIG_CLK_R9A09G057 is defined, thus
> > resolving the linker error.
> >
> > Error message:
> >    /usr/bin/ld: warning: .tmp_vmlinux1 has a LOAD segment with RWX permissions
> > >> /usr/bin/ld: drivers/clk/renesas/rzv2h-cpg.o:(.rodata+0xc0): undefined reference to `r9a09g057_cpg_info'
> >    clang-14: error: linker command failed with exit code 1 (use -v to see invocation)
> >
> > Reported-by: kernel test robot <lkp@...el.com>
> > Closes: https://lore.kernel.org/oe-kbuild-all/202408040932.SqrqyXGU-lkp@intel.com/
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
>
> Fixes: 42b54d52ecb7a819 ("clk: renesas: Add RZ/V2H(P) CPG driver")
> Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
>
> As the issue is only present in renesas-clk, I will fold the fix into the
> original commit.
>
Thanks Geert.

Cheers,
Prabhakar