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Date: Sat, 28 May 2022 08:00:54 +0800
From: kernel test robot <lkp@...el.com>
To: Hawking Zhang <Hawking.Zhang@....com>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org,
Alex Deucher <alexander.deucher@....com>,
Wenhui Sheng <Wenhui.Sheng@....com>
Subject: drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:1945:6: warning: no previous
prototype for function 'gfx_v11_0_rlc_stop'
Hi Hawking,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: bf272460d744112bacd4c4d562592decbf0edf64
commit: 3d879e81f0f9ed5d33b5eda0fe5226c884bb8073 drm/amdgpu: add init support for GFX11 (v2)
date: 3 weeks ago
config: s390-randconfig-r044-20220525 (https://download.01.org/0day-ci/archive/20220528/202205280743.SW6RoSnw-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 134d7f9a4b97e9035150d970bd9e376043c4577e)
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 s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3d879e81f0f9ed5d33b5eda0fe5226c884bb8073
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 3d879e81f0f9ed5d33b5eda0fe5226c884bb8073
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/gpu/drm/amd/amdgpu/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
In file included from drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:27:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:27:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:27:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:362:6: warning: variable 'index' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
if (ring->is_mes_queue) {
^~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:419:30: note: uninitialized use occurs here
amdgpu_device_wb_free(adev, index);
^~~~~
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:362:2: note: remove the 'if' if its condition is always false
if (ring->is_mes_queue) {
^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:350:16: note: initialize the variable 'index' to silence this warning
unsigned index;
^
= 0
>> drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:1945:6: warning: no previous prototype for function 'gfx_v11_0_rlc_stop' [-Wmissing-prototypes]
void gfx_v11_0_rlc_stop(struct amdgpu_device *adev)
^
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:1945:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void gfx_v11_0_rlc_stop(struct amdgpu_device *adev)
^
static
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:3399:8: error: use of undeclared identifier 'CP_RB0_CNTL__BUF_SWAP_MASK'
tmp = REG_SET_FIELD(tmp, CP_RB0_CNTL, BUF_SWAP, 1);
^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:1180:18: note: expanded from macro 'REG_SET_FIELD'
(((orig_val) & ~REG_FIELD_MASK(reg, field)) | \
^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:1177:36: note: expanded from macro 'REG_FIELD_MASK'
#define REG_FIELD_MASK(reg, field) reg##__##field##_MASK
^
<scratch space>:95:1: note: expanded from here
CP_RB0_CNTL__BUF_SWAP_MASK
^
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:3399:8: error: use of undeclared identifier 'CP_RB0_CNTL__BUF_SWAP__SHIFT'
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:1181:49: note: expanded from macro 'REG_SET_FIELD'
(REG_FIELD_MASK(reg, field) & ((field_val) << REG_FIELD_SHIFT(reg, field))))
^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:1176:37: note: expanded from macro 'REG_FIELD_SHIFT'
#define REG_FIELD_SHIFT(reg, field) reg##__##field##__SHIFT
^
<scratch space>:101:1: note: expanded from here
CP_RB0_CNTL__BUF_SWAP__SHIFT
^
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:3399:8: error: use of undeclared identifier 'CP_RB0_CNTL__BUF_SWAP_MASK'
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:1181:4: note: expanded from macro 'REG_SET_FIELD'
(REG_FIELD_MASK(reg, field) & ((field_val) << REG_FIELD_SHIFT(reg, field))))
^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:1177:36: note: expanded from macro 'REG_FIELD_MASK'
#define REG_FIELD_MASK(reg, field) reg##__##field##_MASK
^
<scratch space>:98:1: note: expanded from here
CP_RB0_CNTL__BUF_SWAP_MASK
^
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:4049:8: error: use of undeclared identifier 'CP_HQD_PQ_CONTROL__ENDIAN_SWAP_MASK'
tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, ENDIAN_SWAP, 1);
^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:1180:18: note: expanded from macro 'REG_SET_FIELD'
(((orig_val) & ~REG_FIELD_MASK(reg, field)) | \
^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:1177:36: note: expanded from macro 'REG_FIELD_MASK'
#define REG_FIELD_MASK(reg, field) reg##__##field##_MASK
^
<scratch space>:83:1: note: expanded from here
CP_HQD_PQ_CONTROL__ENDIAN_SWAP_MASK
^
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:4049:8: error: use of undeclared identifier 'CP_HQD_PQ_CONTROL__ENDIAN_SWAP__SHIFT'
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:1181:49: note: expanded from macro 'REG_SET_FIELD'
(REG_FIELD_MASK(reg, field) & ((field_val) << REG_FIELD_SHIFT(reg, field))))
^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:1176:37: note: expanded from macro 'REG_FIELD_SHIFT'
#define REG_FIELD_SHIFT(reg, field) reg##__##field##__SHIFT
^
<scratch space>:89:1: note: expanded from here
CP_HQD_PQ_CONTROL__ENDIAN_SWAP__SHIFT
^
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:4049:8: error: use of undeclared identifier 'CP_HQD_PQ_CONTROL__ENDIAN_SWAP_MASK'
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:1181:4: note: expanded from macro 'REG_SET_FIELD'
(REG_FIELD_MASK(reg, field) & ((field_val) << REG_FIELD_SHIFT(reg, field))))
^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:1177:36: note: expanded from macro 'REG_FIELD_MASK'
#define REG_FIELD_MASK(reg, field) reg##__##field##_MASK
^
<scratch space>:86:1: note: expanded from here
CP_HQD_PQ_CONTROL__ENDIAN_SWAP_MASK
^
14 warnings and 6 errors generated.
vim +/gfx_v11_0_rlc_stop +1945 drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
1944
> 1945 void gfx_v11_0_rlc_stop(struct amdgpu_device *adev)
1946 {
1947 u32 tmp = RREG32_SOC15(GC, 0, regRLC_CNTL);
1948
1949 tmp = REG_SET_FIELD(tmp, RLC_CNTL, RLC_ENABLE_F32, 0);
1950 WREG32_SOC15(GC, 0, regRLC_CNTL, tmp);
1951 }
1952
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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