linux-kernel - [mark:arm64/insn/rework-redo 17/17] arch/arm64/lib/test_insn.c:793:22: error: implicit declaration of function 'aarch64_insn_decode_register'; did you mean 'aarch64_insn_decode_reg

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Date:   Sat, 17 Sep 2022 22:59:56 +0800
From:   kernel test robot <lkp@...el.com>
To:     Mark Rutland <mark.rutland@....com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [mark:arm64/insn/rework-redo 17/17]
 arch/arm64/lib/test_insn.c:793:22: error: implicit declaration of function
 'aarch64_insn_decode_register'; did you mean 'aarch64_insn_decode_reg_rt2'?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64/insn/rework-redo
head:   fee6ec16a43130611bdcfc71d4d1a2bb86bf2a13
commit: fee6ec16a43130611bdcfc71d4d1a2bb86bf2a13 [17/17] WIP: arm64: insn: move to reg helpers
config: arm64-allyesconfig
compiler: aarch64-linux-gcc (GCC) 12.1.0
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/commit/?id=fee6ec16a43130611bdcfc71d4d1a2bb86bf2a13
        git remote add mark https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git
        git fetch --no-tags mark arm64/insn/rework-redo
        git checkout fee6ec16a43130611bdcfc71d4d1a2bb86bf2a13
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   arch/arm64/lib/test_insn.c: In function 'test_insn_ldr_lit':
>> arch/arm64/lib/test_insn.c:793:22: error: implicit declaration of function 'aarch64_insn_decode_register'; did you mean 'aarch64_insn_decode_reg_rt2'? [-Werror=implicit-function-declaration]
     793 |         u32 obj_rt = aarch64_insn_decode_register(AARCH64_INSN_REGTYPE_RT, obj_insn);   \
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/lib/test_insn.c:803:9: note: in expansion of macro 'TEST_LDR_LIT_CASE'
     803 |         TEST_LDR_LIT_CASE(test, "x0", AARCH64_INSN_REG_0, true, 0);
         |         ^~~~~~~~~~~~~~~~~
>> arch/arm64/lib/test_insn.c:793:51: error: 'AARCH64_INSN_REGTYPE_RT' undeclared (first use in this function); did you mean 'AARCH64_INSN_PRFM_TYPE_PST'?
     793 |         u32 obj_rt = aarch64_insn_decode_register(AARCH64_INSN_REGTYPE_RT, obj_insn);   \
         |                                                   ^~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/lib/test_insn.c:803:9: note: in expansion of macro 'TEST_LDR_LIT_CASE'
     803 |         TEST_LDR_LIT_CASE(test, "x0", AARCH64_INSN_REG_0, true, 0);
         |         ^~~~~~~~~~~~~~~~~
   arch/arm64/lib/test_insn.c:793:51: note: each undeclared identifier is reported only once for each function it appears in
     793 |         u32 obj_rt = aarch64_insn_decode_register(AARCH64_INSN_REGTYPE_RT, obj_insn);   \
         |                                                   ^~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/lib/test_insn.c:803:9: note: in expansion of macro 'TEST_LDR_LIT_CASE'
     803 |         TEST_LDR_LIT_CASE(test, "x0", AARCH64_INSN_REG_0, true, 0);
         |         ^~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +793 arch/arm64/lib/test_insn.c

12373cc7d46722 Mark Rutland 2022-09-05  786  
6143dad846ef8d Mark Rutland 2022-09-16  787  #define TEST_LDR_LIT_CASE(test, asm_rt, gen_rt, is64, _gen_offset)			\
6143dad846ef8d Mark Rutland 2022-09-16  788  do {											\
6143dad846ef8d Mark Rutland 2022-09-16  789  	s64 gen_offset = 0UL + _gen_offset;						\
6143dad846ef8d Mark Rutland 2022-09-16  790  	u32 gen_insn = aarch64_insn_gen_load_literal(0, gen_offset, gen_rt, is64);	\
6143dad846ef8d Mark Rutland 2022-09-16  791  	u32 obj_insn = INSN_AS_U32("ldr " asm_rt ", . + %[offset]",			\
6143dad846ef8d Mark Rutland 2022-09-16  792  				   [offset] "i" (gen_offset));				\
6143dad846ef8d Mark Rutland 2022-09-16 @793  	u32 obj_rt = aarch64_insn_decode_register(AARCH64_INSN_REGTYPE_RT, obj_insn);	\
6143dad846ef8d Mark Rutland 2022-09-16  794  	s64 obj_offset = aarch64_insn_decode_scaled_signed_imm19(obj_insn, 4);		\
6143dad846ef8d Mark Rutland 2022-09-16  795  	INSN_EXPECT_IS(test, ldr_lit, obj_insn);					\
6143dad846ef8d Mark Rutland 2022-09-16  796  	KUNIT_EXPECT_EQ(test, obj_rt, gen_rt);						\
6143dad846ef8d Mark Rutland 2022-09-16  797  	KUNIT_EXPECT_EQ(test, obj_offset, gen_offset);					\
6143dad846ef8d Mark Rutland 2022-09-16  798  	KUNIT_EXPECT_EQ(test, obj_insn, gen_insn);					\
6143dad846ef8d Mark Rutland 2022-09-16  799  } while (0)
6143dad846ef8d Mark Rutland 2022-09-16  800  

:::::: The code at line 793 was first introduced by commit
:::::: 6143dad846ef8dac377302dc079b7b2865825ece WIP: arm64: insn: rework ldr (literal) immediates

:::::: TO: Mark Rutland <mark.rutland@....com>
:::::: CC: Mark Rutland <mark.rutland@....com>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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