[hch-misc:decruft-i915-gvt 5/23] drivers/gpu/drm/i915/intel_gvt.c:119:21: error: assignment discards 'const' qualifier from pointer target type

[hch-misc:decruft-i915-gvt 5/23] drivers/gpu/drm/i915/intel_gvt.c:119:21: error: assignment discards 'const' qualifier from pointer target type

[kernel test robot]

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tree:   git://git.infradead.org/users/hch/misc.git decruft-i915-gvt
head:   60f0d5ae52ba484e235ab1174a9c66319d4d2ec8
commit: ff84101f9973d6256320a5e20f2c9c8c69120c83 [5/23] drm/i915/gvt: move the entire gvt code into kvmgt.ko
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        git remote add hch-misc git://git.infradead.org/users/hch/misc.git
        git fetch --no-tags hch-misc decruft-i915-gvt
        git checkout ff84101f9973d6256320a5e20f2c9c8c69120c83
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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

All errors (new ones prefixed by >>):

   drivers/gpu/drm/i915/intel_gvt.c: In function 'intel_gvt_init':
>> drivers/gpu/drm/i915/intel_gvt.c:119:21: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
     119 |  dev_priv->vgpu.ops = symbol_get(intel_gvt_vgpu_ops);
         |                     ^
   cc1: all warnings being treated as errors


vim +/const +119 drivers/gpu/drm/i915/intel_gvt.c

    88	
    89	/**
    90	 * intel_gvt_init - initialize GVT components
    91	 * @dev_priv: drm i915 private data
    92	 *
    93	 * This function is called at the initialization stage to create a GVT device.
    94	 *
    95	 * Returns:
    96	 * Zero on success, negative error code if failed.
    97	 *
    98	 */
    99	int intel_gvt_init(struct drm_i915_private *dev_priv)
   100	{
   101		int ret;
   102	
   103		if (i915_inject_probe_failure(dev_priv))
   104			return -ENODEV;
   105	
   106		if (!dev_priv->params.enable_gvt) {
   107			drm_dbg(&dev_priv->drm,
   108				"GVT-g is disabled by kernel params\n");
   109			return 0;
   110		}
   111	
   112		if (intel_uc_wants_guc_submission(&dev_priv->gt.uc)) {
   113			drm_err(&dev_priv->drm,
   114				"i915 GVT-g loading failed due to Graphics virtualization is not yet supported with GuC submission\n");
   115			return -EIO;
   116		}
   117	
   118		request_module("kvmgt");
 > 119		dev_priv->vgpu.ops = symbol_get(intel_gvt_vgpu_ops);
   120		if (!dev_priv->vgpu.ops) {
   121			drm_dbg(&dev_priv->drm, "Fail to find GVT ops\n");
   122			goto bail;
   123		}
   124	
   125		ret = dev_priv->vgpu.ops->init_device(dev_priv);
   126		if (ret) {
   127			drm_dbg(&dev_priv->drm, "Fail to init GVT device\n");
   128			goto bail_put_ops;
   129		}
   130	
   131		return 0;
   132	
   133	bail_put_ops:
   134		symbol_put(gvt_ops);
   135	bail:
   136		dev_priv->params.enable_gvt = 0;
   137		return 0;
   138	}
   139	

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

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