linux-kernel - Re: sound/soc/codecs/snd-soc-wcd934x.o: warning: objtool: .text.wcd934x_slim_irq

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Message-ID: <Z9y/1xAN/08UFp9h@xsang-OptiPlex-9020>
Date: Fri, 21 Mar 2025 09:24:39 +0800
From: Oliver Sang <oliver.sang@...el.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
CC: kernel test robot <lkp@...el.com>, <oe-kbuild-all@...ts.linux.dev>,
	<linux-kernel@...r.kernel.org>, Mark Brown <broonie@...nel.org>,
	<oliver.sang@...el.com>
Subject: Re: sound/soc/codecs/snd-soc-wcd934x.o: warning: objtool:
 .text.wcd934x_slim_irq_handler: unexpected end of section

hi, Krzysztof,

On Mon, Mar 17, 2025 at 06:02:14PM +0100, Krzysztof Kozlowski wrote:
> On 17/03/2025 17:24, kernel test robot wrote:
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head:   4701f33a10702d5fc577c32434eb62adde0a1ae1
> > commit: 9ea22713227397b56a2b36a68c8bda13f0b43d70 ASoC: codecs: wcd934x: Handle nicer probe deferral and simplify with dev_err_probe()
> > date:   9 months ago
> > config: x86_64-randconfig-102-20250317 (https://download.01.org/0day-ci/archive/20250318/202503180044.oH9gyPeg-lkp@intel.com/config)
> > compiler: clang version 20.1.0 (https://github.com/llvm/llvm-project 24a30daaa559829ad079f2ff7f73eb4e18095f88)
> > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250318/202503180044.oH9gyPeg-lkp@intel.com/reproduce)
> > 
> > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > the same patch/commit), kindly add following tags
> > | Reported-by: kernel test robot <lkp@...el.com>
> > | Closes: https://lore.kernel.org/oe-kbuild-all/202503180044.oH9gyPeg-lkp@intel.com/
> > 
> > All warnings (new ones prefixed by >>):
> > 
> >>> sound/soc/codecs/snd-soc-wcd934x.o: warning: objtool: .text.wcd934x_slim_irq_handler: unexpected end of section
> 
> I cannot reproduce it on clang-18 and clang-19 (I do not have clang-20
> in my distros) and I do not see how original commit could trigger this
> warning.

we double confirmed, the issue is really only reproduced on clang-20

linux$make W=1 LLVM=1 -j32 ARCH=x86_64

...

  LD [M]  sound/soc/codecs/snd-soc-lpass-va-macro.o
sound/soc/codecs/snd-soc-wcd934x.o: warning: objtool: .text.wcd934x_slim_irq_handler: unexpected end of section   <----


but cannot be reproduced on clang-19

linux$make W=1 LLVM=1 -j32 ARCH=x86_64

...

  LD [M]  sound/soc/codecs/snd-soc-wcd9335.o
  LD [M]  sound/soc/codecs/snd-soc-wcd934x.o     <----
  LD [M]  sound/soc/codecs/snd-soc-wcd937x.o

> 
> Best regards,
> Krzysztof