linux-kernel - drivers/net/wan/slic_ds26522.c:205:12: warning: stack frame size of 12288 bytes in function 'slic_ds26522

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Message-ID: <202011200603.Fq2dmeMk-lkp@intel.com>
Date:   Fri, 20 Nov 2020 06:16:07 +0800
From:   kernel test robot <lkp@...el.com>
To:     Andrey Konovalov <andreyknvl@...gle.com>
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>
Subject: drivers/net/wan/slic_ds26522.c:205:12: warning: stack frame size of
 12288 bytes in function 'slic_ds26522_probe'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   3494d58865ad4a47611dbb427b214cc5227fa5eb
commit: cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4 kasan: allow enabling stack tagging for tag-based mode
date:   3 months ago
config: arm64-randconfig-r002-20201119 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project b2613fb2f0f53691dd0211895afbb9413457fca7)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> drivers/net/wan/slic_ds26522.c:205:12: warning: stack frame size of 12288 bytes in function 'slic_ds26522_probe' [-Wframe-larger-than=]
   static int slic_ds26522_probe(struct spi_device *spi)
              ^
   1 warning generated.
--
>> drivers/gpu/drm/panel/panel-sitronix-st7789v.c:194:12: warning: stack frame size of 18352 bytes in function 'st7789v_prepare' [-Wframe-larger-than=]
   static int st7789v_prepare(struct drm_panel *panel)
              ^
   1 warning generated.

vim +/slic_ds26522_probe +205 drivers/net/wan/slic_ds26522.c

c37d4a0085c58d Zhao Qiang     2016-06-27  204  
c37d4a0085c58d Zhao Qiang     2016-06-27 @205  static int slic_ds26522_probe(struct spi_device *spi)
c37d4a0085c58d Zhao Qiang     2016-06-27  206  {
c37d4a0085c58d Zhao Qiang     2016-06-27  207  	int ret = 0;
c37d4a0085c58d Zhao Qiang     2016-06-27  208  
c37d4a0085c58d Zhao Qiang     2016-06-27  209  	g_spi = spi;
c37d4a0085c58d Zhao Qiang     2016-06-27  210  	spi->bits_per_word = 8;
c37d4a0085c58d Zhao Qiang     2016-06-27  211  
c37d4a0085c58d Zhao Qiang     2016-06-27  212  	if (!get_slic_product_code(spi))
c37d4a0085c58d Zhao Qiang     2016-06-27  213  		return ret;
c37d4a0085c58d Zhao Qiang     2016-06-27  214  
c37d4a0085c58d Zhao Qiang     2016-06-27  215  	ret = slic_ds26522_init_configure(spi);
c37d4a0085c58d Zhao Qiang     2016-06-27  216  	if (ret == 0)
60133867f1f111 Colin Ian King 2016-12-28  217  		pr_info("DS26522 cs%d configured\n", spi->chip_select);
c37d4a0085c58d Zhao Qiang     2016-06-27  218  
c37d4a0085c58d Zhao Qiang     2016-06-27  219  	return ret;
c37d4a0085c58d Zhao Qiang     2016-06-27  220  }
c37d4a0085c58d Zhao Qiang     2016-06-27  221  

:::::: The code at line 205 was first introduced by commit
:::::: c37d4a0085c58d9e45930ead6acd13ac75a8fb67 Maxim/driver: Add driver for maxim ds26522

:::::: TO: Zhao Qiang <qiang.zhao@....com>
:::::: CC: David S. Miller <davem@...emloft.net>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (31275 bytes)