On 7/1/20 9:04 PM, Vincent Chen wrote:

On Thu, Jul 2, 2020 at 2:48 AM Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com wrote:

...

0day/kbuild reports warnings with the ASoC codecs compiled with W=1.

In file included from arch/riscv/include/asm/kgdb.h:109, from include/linux/kgdb.h:20, from include/linux/fb.h:5, from include/drm/drm_crtc.h:31, from sound/soc/codecs/hdmi-codec.c:19:

arch/riscv/include/asm/gdb_xml.h:23:19: warning: 'riscv_gdb_stub_cpuxml' defined but not used [-Wunused-const-variable=] 23 | static const char riscv_gdb_stub_cpuxml[2048] = | ^~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/gdb_xml.h:16:19: warning: 'riscv_gdb_stub_target_desc' defined but not used [-Wunused-const-variable=] 16 | static const char riscv_gdb_stub_target_desc[256] = | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/gdb_xml.h:13:19: warning: 'gdb_xfer_read_cpuxml' defined but not used [-Wunused-const-variable=] 13 | static const char gdb_xfer_read_cpuxml[39] = | ^~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/gdb_xml.h:10:19: warning: 'gdb_xfer_read_target' defined but not used [-Wunused-const-variable=] 10 | static const char gdb_xfer_read_target[31] = "qXfer:features:read:target.xml:"; | ^~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/gdb_xml.h:7:19: warning: 'riscv_gdb_stub_feature' defined but not used [-Wunused-const-variable=] 7 | static const char riscv_gdb_stub_feature[64] = | ^~~~~~~~~~~~~~~~~~~~~~

Reported-by: kernel test robot lkp@intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com

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I don't know if this is the right way of solving this issue but this error is now consistently thrown in kbuild compile-test reports w/ W=1.

Dear Pierre-Louis Bossart: Thanks for your modifications. I have fixed the warnings in my latest KGDB patchset and sent it out, but the merged KGDB patchset is not my latest version. I have sent a patch set to complement the missing ports, and I think these warnings would disappear after this patch has been accepted and merged.

Here is the patch to fix this warning: http://lists.infradead.org/pipermail/linux-riscv/2020-June/000660.html

Thank you Vincent, let's drop my hacky patch then.