* [PATCH] powerpc/xmon: Fix comparing pointer [not found] <20230613033455.44992-1-zhanglibing@cdjrlc.com> @ 2023-06-13 3:38 ` wuyonggang001 2023-06-13 6:06 ` Christophe Leroy 2023-06-14 5:48 ` wuyonggang001 0 siblings, 2 replies; 5+ messages in thread From: wuyonggang001 @ 2023-06-13 3:38 UTC (permalink / raw) To: mpe, npiggin; +Cc: linuxppc-dev, linux-kernel [-- Attachment #1: Type: text/plain, Size: 12551 bytes --] Fix the following coccicheck warning: arch/powerpc/xmon/spu-dis.c:51:34-35: WARNING comparing pointer to 0 Signed-off-by: Yonggang Wu <wuyonggang001@208suo.com> --- arch/powerpc/xmon/spu-dis.c | 384 ++++++++++++++++++------------------ 1 file changed, 193 insertions(+), 191 deletions(-) diff --git a/arch/powerpc/xmon/spu-dis.c b/arch/powerpc/xmon/spu-dis.c index 4b0a4e640f08..f48a2ddd7440 100644 --- a/arch/powerpc/xmon/spu-dis.c +++ b/arch/powerpc/xmon/spu-dis.c @@ -22,216 +22,218 @@ extern const int spu_num_opcodes; #define SPU_DISASM_TBL_SIZE (1 << 11) static const struct spu_opcode *spu_disassemble_table[SPU_DISASM_TBL_SIZE]; -static void -init_spu_disassemble (void) +static void init_spu_disassemble(void) { - int i; - - /* If two instructions have the same opcode then we prefer the first - * one. In most cases it is just an alternate mnemonic. */ - for (i = 0; i < spu_num_opcodes; i++) - { - int o = spu_opcodes[i].opcode; - if (o >= SPU_DISASM_TBL_SIZE) - continue; /* abort (); */ - if (spu_disassemble_table[o] == 0) - spu_disassemble_table[o] = &spu_opcodes[i]; - } + int i; + + /* + * If two instructions have the same opcode then we prefer the first + * one. In most cases it is just an alternate mnemonic. + */ + for (i = 0; i < spu_num_opcodes; i++) { + int o = spu_opcodes[i].opcode; + + if (o >= SPU_DISASM_TBL_SIZE) + continue; /* abort(); */ + if (spu_disassemble_table[o] == NULL) + spu_disassemble_table[o] = &spu_opcodes[i]; + } } /* Determine the instruction from the 10 least significant bits. */ -static const struct spu_opcode * -get_index_for_opcode (unsigned int insn) +static const struct spu_opcode *get_index_for_opcode(unsigned int insn) { - const struct spu_opcode *index; - unsigned int opcode = insn >> (32-11); - - /* Init the table. This assumes that element 0/opcode 0 (currently - * NOP) is always used */ - if (spu_disassemble_table[0] == 0) - init_spu_disassemble (); - - if ((index = spu_disassemble_table[opcode & 0x780]) != 0 - && index->insn_type == RRR) - return index; - - if ((index = spu_disassemble_table[opcode & 0x7f0]) != 0 - && (index->insn_type == RI18 || index->insn_type == LBT)) - return index; - - if ((index = spu_disassemble_table[opcode & 0x7f8]) != 0 - && index->insn_type == RI10) - return index; - - if ((index = spu_disassemble_table[opcode & 0x7fc]) != 0 - && (index->insn_type == RI16)) - return index; - - if ((index = spu_disassemble_table[opcode & 0x7fe]) != 0 - && (index->insn_type == RI8)) - return index; - - if ((index = spu_disassemble_table[opcode & 0x7ff]) != 0) - return index; - - return NULL; + const struct spu_opcode *index; + unsigned int opcode = insn >> (32-11); + + /* + * Init the table. This assumes that element 0/opcode 0 (currently + * NOP) is always used + */ + if (spu_disassemble_table[0] == NULL) + init_spu_disassemble(); + + index = spu_disassemble_table[opcode & 0x780]; + if (index != NULL && index->insn_type == RRR) + return index; + + index = spu_disassemble_table[opcode & 0x7f0]; + if (index != NULL + && (index->insn_type == RI18 || index->insn_type == LBT)) + return index; + + index = spu_disassemble_table[opcode & 0x7f8]; + if (index != NULL + && index->insn_type == RI10) + return index; + + index = spu_disassemble_table[opcode & 0x7fc] + if (index != NULL && (index->insn_type == RI16)) + return index; + + index = spu_disassemble_table[opcode & 0x7fe]; + if (index != NULL && (index->insn_type == RI8)) + return index; + + index = spu_disassemble_table[opcode & 0x7ff]; + if (index != NULL) + return index; + + return NULL; } /* Print a Spu instruction. */ -int -print_insn_spu (unsigned long insn, unsigned long memaddr) +int print_insn_spu(unsigned long insn, unsigned long memaddr) { - int value; - int hex_value; - const struct spu_opcode *index; - enum spu_insns tag; + int value; + int hex_value; + const struct spu_opcode *index; + enum spu_insns tag; - index = get_index_for_opcode (insn); + index = get_index_for_opcode(insn); - if (index == 0) - { - printf(".long 0x%lx", insn); - } - else - { - int i; - int paren = 0; - tag = (enum spu_insns)(index - spu_opcodes); - printf("%s", index->mnemonic); - if (tag == M_BI || tag == M_BISL || tag == M_IRET || tag == M_BISLED - || tag == M_BIHNZ || tag == M_BIHZ || tag == M_BINZ || tag == M_BIZ - || tag == M_SYNC || tag == M_HBR) + if (index == NULL) { - int fb = (insn >> (32-18)) & 0x7f; - if (fb & 0x40) - printf(tag == M_SYNC ? "c" : "p"); - if (fb & 0x20) - printf("d"); - if (fb & 0x10) - printf("e"); - } - if (index->arg[0] != 0) - printf("\t"); - hex_value = 0; - for (i = 1; i <= index->arg[0]; i++) + printf(".long 0x%lx", insn); + } else { - int arg = index->arg[i]; - if (arg != A_P && !paren && i > 1) - printf(","); - - switch (arg) - { - case A_T: - printf("$%lu", - DECODE_INSN_RT (insn)); - break; - case A_A: - printf("$%lu", - DECODE_INSN_RA (insn)); - break; - case A_B: - printf("$%lu", - DECODE_INSN_RB (insn)); - break; - case A_C: - printf("$%lu", - DECODE_INSN_RC (insn)); - break; - case A_S: - printf("$sp%lu", - DECODE_INSN_RA (insn)); - break; - case A_H: - printf("$ch%lu", - DECODE_INSN_RA (insn)); - break; - case A_P: - paren++; - printf("("); - break; - case A_U7A: - printf("%lu", - 173 - DECODE_INSN_U8 (insn)); - break; - case A_U7B: - printf("%lu", - 155 - DECODE_INSN_U8 (insn)); - break; - case A_S3: - case A_S6: - case A_S7: - case A_S7N: - case A_U3: - case A_U5: - case A_U6: - case A_U7: - hex_value = DECODE_INSN_I7 (insn); - printf("%d", hex_value); - break; - case A_S11: - print_address(memaddr + DECODE_INSN_I9a (insn) * 4); - break; - case A_S11I: - print_address(memaddr + DECODE_INSN_I9b (insn) * 4); - break; - case A_S10: - case A_S10B: - hex_value = DECODE_INSN_I10 (insn); - printf("%d", hex_value); - break; - case A_S14: - hex_value = DECODE_INSN_I10 (insn) * 16; - printf("%d", hex_value); - break; - case A_S16: - hex_value = DECODE_INSN_I16 (insn); - printf("%d", hex_value); - break; - case A_X16: - hex_value = DECODE_INSN_U16 (insn); - printf("%u", hex_value); - break; - case A_R18: - value = DECODE_INSN_I16 (insn) * 4; - if (value == 0) - printf("%d", value); - else + int i; + int paren = 0; + + tag = (enum spu_insns)(index - spu_opcodes); + + printf("%s", index->mnemonic); + if (tag == M_BI || tag == M_BISL || tag == M_IRET || tag == M_BISLED + || tag == M_BIHNZ || tag == M_BIHZ || tag == M_BINZ || tag == M_BIZ + || tag == M_SYNC || tag == M_HBR) { - hex_value = memaddr + value; - print_address(hex_value & 0x3ffff); + int fb = (insn >> (32-18)) & 0x7f; + + if (fb & 0x40) + printf(tag == M_SYNC ? "c" : "p"); + if (fb & 0x20) + printf("d"); + if (fb & 0x10) + printf("e"); } - break; - case A_S18: - value = DECODE_INSN_U16 (insn) * 4; - if (value == 0) - printf("%d", value); - else - print_address(value); - break; - case A_U18: - value = DECODE_INSN_U18 (insn); - if (value == 0 || 1) + if (index->arg[0] != 0) + printf("\t"); + hex_value = 0; + for (i = 1; i <= index->arg[0]; i++) { + int arg = index->arg[i]; + + if (arg != A_P && !paren && i > 1) + printf(","); + + switch (arg) { + case A_T: + printf("$%lu", + DECODE_INSN_RT(insn)); + break; + case A_A: + printf("$%lu", + DECODE_INSN_RA(insn)); + break; + case A_B: + printf("$%lu", + DECODE_INSN_RB(insn)); + break; + case A_C: + printf("$%lu", + DECODE_INSN_RC(insn)); + break; + case A_S: + printf("$sp%lu", + DECODE_INSN_RA(insn)); + break; + case A_H: + printf("$ch%lu", + DECODE_INSN_RA(insn)); + break; + case A_P: + paren++; + printf("("); + break; + case A_U7A: + printf("%lu", + 173 - DECODE_INSN_U8(insn)); + break; + case A_U7B: + printf("%lu", + 155 - DECODE_INSN_U8(insn)); + break; + case A_S3: + case A_S6: + case A_S7: + case A_S7N: + case A_U3: + case A_U5: + case A_U6: + case A_U7: + hex_value = DECODE_INSN_I7(insn); + printf("%d", hex_value); + break; + case A_S11: + print_address(memaddr + DECODE_INSN_I9a(insn) * 4); + break; + case A_S11I: + print_address(memaddr + DECODE_INSN_I9b(insn) * 4); + break; + case A_S10: + case A_S10B: + hex_value = DECODE_INSN_I10(insn); + printf("%d", hex_value); + break; + case A_S14: + hex_value = DECODE_INSN_I10(insn) * 16; + printf("%d", hex_value); + break; + case A_S16: + hex_value = DECODE_INSN_I16(insn); + printf("%d", hex_value); + break; + case A_X16: + hex_value = DECODE_INSN_U16(insn); + printf("%u", hex_value); + break; + case A_R18: + value = DECODE_INSN_I16(insn) * 4; + if (value == 0) + printf("%d", value); + else { + hex_value = memaddr + value; + print_address(hex_value & 0x3ffff); + } + break; + case A_S18: + value = DECODE_INSN_U16(insn) * 4; + if (value == 0) + printf("%d", value); + else + print_address(value); + break; + case A_U18: + value = DECODE_INSN_U18(insn); + if (value == 0 || 1) { + hex_value = value; + printf("%u", value); + } else + print_address(value); + break; + case A_U14: + hex_value = DECODE_INSN_U14(insn); + printf("%u", hex_value); + break; + } + if (arg != A_P && paren) { - hex_value = value; - printf("%u", value); + printf(")"); + paren--; } - else - print_address(value); - break; - case A_U14: - hex_value = DECODE_INSN_U14 (insn); - printf("%u", hex_value); - break; - } - if (arg != A_P && paren) - { - printf(")"); - paren--; - } } - if (hex_value > 16) - printf("\t# %x", hex_value); + if (hex_value > 16) + printf("\t# %x", hex_value); } return 4; } [-- Attachment #2: Type: text/html, Size: 31366 bytes --] ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] powerpc/xmon: Fix comparing pointer 2023-06-13 3:38 ` [PATCH] powerpc/xmon: Fix comparing pointer wuyonggang001 @ 2023-06-13 6:06 ` Christophe Leroy 2023-06-14 5:48 ` wuyonggang001 1 sibling, 0 replies; 5+ messages in thread From: Christophe Leroy @ 2023-06-13 6:06 UTC (permalink / raw) To: wuyonggang001@208suo.com, mpe@ellerman.id.au, npiggin@gmail.com Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Le 13/06/2023 à 05:38, wuyonggang001@208suo.com a écrit : > > > Fix the following coccicheck warning: > > arch/powerpc/xmon/spu-dis.c:51:34-35: WARNING comparing pointer to 0 Please send text messages, not html. And please check your patch, a lot of lines have no modifications but appears as modified in your patch because you changed the formating. Please don't change more than what is intended to change. Thanks > > Signed-off-by: Yonggang Wu <wuyonggang001@208suo.com> > --- > arch/powerpc/xmon/spu-dis.c | 384 ++++++++++++++++++------------------ > 1 file changed, 193 insertions(+), 191 deletions(-) > > diff --git a/arch/powerpc/xmon/spu-dis.c b/arch/powerpc/xmon/spu-dis.c > index 4b0a4e640f08..f48a2ddd7440 100644 > --- a/arch/powerpc/xmon/spu-dis.c > +++ b/arch/powerpc/xmon/spu-dis.c > @@ -22,216 +22,218 @@ extern const int spu_num_opcodes; > #define SPU_DISASM_TBL_SIZE (1 << 11) > static const struct spu_opcode > *spu_disassemble_table[SPU_DISASM_TBL_SIZE]; > > -static void > -init_spu_disassemble (void) > +static void init_spu_disassemble(void) > { > - int i; > - > - /* If two instructions have the same opcode then we prefer the first > - * one. In most cases it is just an alternate mnemonic. */ > - for (i = 0; i < spu_num_opcodes; i++) > - { > - int o = spu_opcodes[i].opcode; > - if (o >= SPU_DISASM_TBL_SIZE) > - continue; /* abort (); */ > - if (spu_disassemble_table[o] == 0) > - spu_disassemble_table[o] = &spu_opcodes[i]; > - } > + int i; > + > + /* > + * If two instructions have the same opcode then we prefer the first > + * one. In most cases it is just an alternate mnemonic. > + */ > + for (i = 0; i < spu_num_opcodes; i++) { > + int o = spu_opcodes[i].opcode; > + > + if (o >= SPU_DISASM_TBL_SIZE) > + continue; /* abort(); */ > + if (spu_disassemble_table[o] == NULL) > + spu_disassemble_table[o] = &spu_opcodes[i]; > + } > } > > /* Determine the instruction from the 10 least significant bits. */ > -static const struct spu_opcode * > -get_index_for_opcode (unsigned int insn) > +static const struct spu_opcode *get_index_for_opcode(unsigned int insn) > { > - const struct spu_opcode *index; > - unsigned int opcode = insn >> (32-11); > - > - /* Init the table. This assumes that element 0/opcode 0 (currently > - * NOP) is always used */ > - if (spu_disassemble_table[0] == 0) > - init_spu_disassemble (); > - > - if ((index = spu_disassemble_table[opcode & 0x780]) != 0 > - && index->insn_type == RRR) > - return index; > - > - if ((index = spu_disassemble_table[opcode & 0x7f0]) != 0 > - && (index->insn_type == RI18 || index->insn_type == LBT)) > - return index; > - > - if ((index = spu_disassemble_table[opcode & 0x7f8]) != 0 > - && index->insn_type == RI10) > - return index; > - > - if ((index = spu_disassemble_table[opcode & 0x7fc]) != 0 > - && (index->insn_type == RI16)) > - return index; > - > - if ((index = spu_disassemble_table[opcode & 0x7fe]) != 0 > - && (index->insn_type == RI8)) > - return index; > - > - if ((index = spu_disassemble_table[opcode & 0x7ff]) != 0) > - return index; > - > - return NULL; > + const struct spu_opcode *index; > + unsigned int opcode = insn >> (32-11); > + > + /* > + * Init the table. This assumes that element 0/opcode 0 (currently > + * NOP) is always used > + */ > + if (spu_disassemble_table[0] == NULL) > + init_spu_disassemble(); > + > + index = spu_disassemble_table[opcode & 0x780]; > + if (index != NULL && index->insn_type == RRR) > + return index; > + > + index = spu_disassemble_table[opcode & 0x7f0]; > + if (index != NULL > + && (index->insn_type == RI18 || index->insn_type == LBT)) > + return index; > + > + index = spu_disassemble_table[opcode & 0x7f8]; > + if (index != NULL > + && index->insn_type == RI10) > + return index; > + > + index = spu_disassemble_table[opcode & 0x7fc] > + if (index != NULL && (index->insn_type == RI16)) > + return index; > + > + index = spu_disassemble_table[opcode & 0x7fe]; > + if (index != NULL && (index->insn_type == RI8)) > + return index; > + > + index = spu_disassemble_table[opcode & 0x7ff]; > + if (index != NULL) > + return index; > + > + return NULL; > } > > /* Print a Spu instruction. */ > > -int > -print_insn_spu (unsigned long insn, unsigned long memaddr) > +int print_insn_spu(unsigned long insn, unsigned long memaddr) > { > - int value; > - int hex_value; > - const struct spu_opcode *index; > - enum spu_insns tag; > + int value; > + int hex_value; > + const struct spu_opcode *index; > + enum spu_insns tag; > > - index = get_index_for_opcode (insn); > + index = get_index_for_opcode(insn); > > - if (index == 0) > - { > - printf(".long 0x%lx", insn); > - } > - else > - { > - int i; > - int paren = 0; > - tag = (enum spu_insns)(index - spu_opcodes); > - printf("%s", index->mnemonic); > - if (tag == M_BI || tag == M_BISL || tag == M_IRET || tag == M_BISLED > - || tag == M_BIHNZ || tag == M_BIHZ || tag == M_BINZ || tag == M_BIZ > - || tag == M_SYNC || tag == M_HBR) > + if (index == NULL) > { > - int fb = (insn >> (32-18)) & 0x7f; > - if (fb & 0x40) > - printf(tag == M_SYNC ? "c" : "p"); > - if (fb & 0x20) > - printf("d"); > - if (fb & 0x10) > - printf("e"); > - } > - if (index->arg[0] != 0) > - printf("\t"); > - hex_value = 0; > - for (i = 1; i <= index->arg[0]; i++) > + printf(".long 0x%lx", insn); > + } else > { > - int arg = index->arg[i]; > - if (arg != A_P && !paren && i > 1) > - printf(","); > - > - switch (arg) > - { > - case A_T: > - printf("$%lu", > - DECODE_INSN_RT (insn)); > - break; > - case A_A: > - printf("$%lu", > - DECODE_INSN_RA (insn)); > - break; > - case A_B: > - printf("$%lu", > - DECODE_INSN_RB (insn)); > - break; > - case A_C: > - printf("$%lu", > - DECODE_INSN_RC (insn)); > - break; > - case A_S: > - printf("$sp%lu", > - DECODE_INSN_RA (insn)); > - break; > - case A_H: > - printf("$ch%lu", > - DECODE_INSN_RA (insn)); > - break; > - case A_P: > - paren++; > - printf("("); > - break; > - case A_U7A: > - printf("%lu", > - 173 - DECODE_INSN_U8 (insn)); > - break; > - case A_U7B: > - printf("%lu", > - 155 - DECODE_INSN_U8 (insn)); > - break; > - case A_S3: > - case A_S6: > - case A_S7: > - case A_S7N: > - case A_U3: > - case A_U5: > - case A_U6: > - case A_U7: > - hex_value = DECODE_INSN_I7 (insn); > - printf("%d", hex_value); > - break; > - case A_S11: > - print_address(memaddr + DECODE_INSN_I9a (insn) * 4); > - break; > - case A_S11I: > - print_address(memaddr + DECODE_INSN_I9b (insn) * 4); > - break; > - case A_S10: > - case A_S10B: > - hex_value = DECODE_INSN_I10 (insn); > - printf("%d", hex_value); > - break; > - case A_S14: > - hex_value = DECODE_INSN_I10 (insn) * 16; > - printf("%d", hex_value); > - break; > - case A_S16: > - hex_value = DECODE_INSN_I16 (insn); > - printf("%d", hex_value); > - break; > - case A_X16: > - hex_value = DECODE_INSN_U16 (insn); > - printf("%u", hex_value); > - break; > - case A_R18: > - value = DECODE_INSN_I16 (insn) * 4; > - if (value == 0) > - printf("%d", value); > - else > + int i; > + int paren = 0; > + > + tag = (enum spu_insns)(index - spu_opcodes); > + > + printf("%s", index->mnemonic); > + if (tag == M_BI || tag == M_BISL || tag == M_IRET || tag == > M_BISLED > + || tag == M_BIHNZ || tag == M_BIHZ || tag == M_BINZ || tag == M_BIZ > + || tag == M_SYNC || tag == M_HBR) > { > - hex_value = memaddr + value; > - print_address(hex_value & 0x3ffff); > + int fb = (insn >> (32-18)) & 0x7f; > + > + if (fb & 0x40) > + printf(tag == M_SYNC ? "c" : "p"); > + if (fb & 0x20) > + printf("d"); > + if (fb & 0x10) > + printf("e"); > } > - break; > - case A_S18: > - value = DECODE_INSN_U16 (insn) * 4; > - if (value == 0) > - printf("%d", value); > - else > - print_address(value); > - break; > - case A_U18: > - value = DECODE_INSN_U18 (insn); > - if (value == 0 || 1) > + if (index->arg[0] != 0) > + printf("\t"); > + hex_value = 0; > + for (i = 1; i <= index->arg[0]; i++) { > + int arg = index->arg[i]; > + > + if (arg != A_P && !paren && i > 1) > + printf(","); > + > + switch (arg) { > + case A_T: > + printf("$%lu", > + DECODE_INSN_RT(insn)); > + break; > + case A_A: > + printf("$%lu", > + DECODE_INSN_RA(insn)); > + break; > + case A_B: > + printf("$%lu", > + DECODE_INSN_RB(insn)); > + break; > + case A_C: > + printf("$%lu", > + DECODE_INSN_RC(insn)); > + break; > + case A_S: > + printf("$sp%lu", > + DECODE_INSN_RA(insn)); > + break; > + case A_H: > + printf("$ch%lu", > + DECODE_INSN_RA(insn)); > + break; > + case A_P: > + paren++; > + printf("("); > + break; > + case A_U7A: > + printf("%lu", > + 173 - DECODE_INSN_U8(insn)); > + break; > + case A_U7B: > + printf("%lu", > + 155 - DECODE_INSN_U8(insn)); > + break; > + case A_S3: > + case A_S6: > + case A_S7: > + case A_S7N: > + case A_U3: > + case A_U5: > + case A_U6: > + case A_U7: > + hex_value = DECODE_INSN_I7(insn); > + printf("%d", hex_value); > + break; > + case A_S11: > + print_address(memaddr + DECODE_INSN_I9a(insn) * 4); > + break; > + case A_S11I: > + print_address(memaddr + DECODE_INSN_I9b(insn) * 4); > + break; > + case A_S10: > + case A_S10B: > + hex_value = DECODE_INSN_I10(insn); > + printf("%d", hex_value); > + break; > + case A_S14: > + hex_value = DECODE_INSN_I10(insn) * 16; > + printf("%d", hex_value); > + break; > + case A_S16: > + hex_value = DECODE_INSN_I16(insn); > + printf("%d", hex_value); > + break; > + case A_X16: > + hex_value = DECODE_INSN_U16(insn); > + printf("%u", hex_value); > + break; > + case A_R18: > + value = DECODE_INSN_I16(insn) * 4; > + if (value == 0) > + printf("%d", value); > + else { > + hex_value = memaddr + value; > + print_address(hex_value & 0x3ffff); > + } > + break; > + case A_S18: > + value = DECODE_INSN_U16(insn) * 4; > + if (value == 0) > + printf("%d", value); > + else > + print_address(value); > + break; > + case A_U18: > + value = DECODE_INSN_U18(insn); > + if (value == 0 || 1) { > + hex_value = value; > + printf("%u", value); > + } else > + print_address(value); > + break; > + case A_U14: > + hex_value = DECODE_INSN_U14(insn); > + printf("%u", hex_value); > + break; > + } > + if (arg != A_P && paren) > { > - hex_value = value; > - printf("%u", value); > + printf(")"); > + paren--; > } > - else > - print_address(value); > - break; > - case A_U14: > - hex_value = DECODE_INSN_U14 (insn); > - printf("%u", hex_value); > - break; > - } > - if (arg != A_P && paren) > - { > - printf(")"); > - paren--; > - } > } > - if (hex_value > 16) > - printf("\t# %x", hex_value); > + if (hex_value > 16) > + printf("\t# %x", hex_value); > } > return 4; > } ^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH] powerpc/xmon: Fix comparing pointer 2023-06-13 3:38 ` [PATCH] powerpc/xmon: Fix comparing pointer wuyonggang001 2023-06-13 6:06 ` Christophe Leroy @ 2023-06-14 5:48 ` wuyonggang001 2023-06-14 5:54 ` Christophe Leroy 1 sibling, 1 reply; 5+ messages in thread From: wuyonggang001 @ 2023-06-14 5:48 UTC (permalink / raw) To: npiggin, mpe; +Cc: linuxppc-dev, linux-kernel Fix the following coccicheck warning: arch/powerpc/xmon/spu-dis.c:51:34-35: WARNING comparing pointer to 0 Signed-off-by: Yonggang Wu <wuyonggang001@208suo.com> --- arch/powerpc/xmon/spu-dis.c | 384 ++++++++++++++++++------------------ 1 file changed, 193 insertions(+), 191 deletions(-) diff --git a/arch/powerpc/xmon/spu-dis.c b/arch/powerpc/xmon/spu-dis.c index 4b0a4e640f08..f48a2ddd7440 100644 --- a/arch/powerpc/xmon/spu-dis.c +++ b/arch/powerpc/xmon/spu-dis.c @@ -22,216 +22,218 @@ extern const int spu_num_opcodes; #define SPU_DISASM_TBL_SIZE (1 << 11) static const struct spu_opcode *spu_disassemble_table[SPU_DISASM_TBL_SIZE]; -static void -init_spu_disassemble (void) +static void init_spu_disassemble(void) { - int i; - - /* If two instructions have the same opcode then we prefer the first - * one. In most cases it is just an alternate mnemonic. */ - for (i = 0; i < spu_num_opcodes; i++) - { - int o = spu_opcodes[i].opcode; - if (o >= SPU_DISASM_TBL_SIZE) - continue; /* abort (); */ - if (spu_disassemble_table[o] == 0) - spu_disassemble_table[o] = &spu_opcodes[i]; - } + int i; + + /* + * If two instructions have the same opcode then we prefer the first + * one. In most cases it is just an alternate mnemonic. + */ + for (i = 0; i < spu_num_opcodes; i++) { + int o = spu_opcodes[i].opcode; + + if (o >= SPU_DISASM_TBL_SIZE) + continue; /* abort(); */ + if (spu_disassemble_table[o] == NULL) + spu_disassemble_table[o] = &spu_opcodes[i]; + } } /* Determine the instruction from the 10 least significant bits. */ -static const struct spu_opcode * -get_index_for_opcode (unsigned int insn) +static const struct spu_opcode *get_index_for_opcode(unsigned int insn) { - const struct spu_opcode *index; - unsigned int opcode = insn >> (32-11); - - /* Init the table. This assumes that element 0/opcode 0 (currently - * NOP) is always used */ - if (spu_disassemble_table[0] == 0) - init_spu_disassemble (); - - if ((index = spu_disassemble_table[opcode & 0x780]) != 0 - && index->insn_type == RRR) - return index; - - if ((index = spu_disassemble_table[opcode & 0x7f0]) != 0 - && (index->insn_type == RI18 || index->insn_type == LBT)) - return index; - - if ((index = spu_disassemble_table[opcode & 0x7f8]) != 0 - && index->insn_type == RI10) - return index; - - if ((index = spu_disassemble_table[opcode & 0x7fc]) != 0 - && (index->insn_type == RI16)) - return index; - - if ((index = spu_disassemble_table[opcode & 0x7fe]) != 0 - && (index->insn_type == RI8)) - return index; - - if ((index = spu_disassemble_table[opcode & 0x7ff]) != 0) - return index; - - return NULL; + const struct spu_opcode *index; + unsigned int opcode = insn >> (32-11); + + /* + * Init the table. This assumes that element 0/opcode 0 (currently + * NOP) is always used + */ + if (spu_disassemble_table[0] == NULL) + init_spu_disassemble(); + + index = spu_disassemble_table[opcode & 0x780]; + if (index != NULL && index->insn_type == RRR) + return index; + + index = spu_disassemble_table[opcode & 0x7f0]; + if (index != NULL + && (index->insn_type == RI18 || index->insn_type == LBT)) + return index; + + index = spu_disassemble_table[opcode & 0x7f8]; + if (index != NULL + && index->insn_type == RI10) + return index; + + index = spu_disassemble_table[opcode & 0x7fc] + if (index != NULL && (index->insn_type == RI16)) + return index; + + index = spu_disassemble_table[opcode & 0x7fe]; + if (index != NULL && (index->insn_type == RI8)) + return index; + + index = spu_disassemble_table[opcode & 0x7ff]; + if (index != NULL) + return index; + + return NULL; } /* Print a Spu instruction. */ -int -print_insn_spu (unsigned long insn, unsigned long memaddr) +int print_insn_spu(unsigned long insn, unsigned long memaddr) { - int value; - int hex_value; - const struct spu_opcode *index; - enum spu_insns tag; + int value; + int hex_value; + const struct spu_opcode *index; + enum spu_insns tag; - index = get_index_for_opcode (insn); + index = get_index_for_opcode(insn); - if (index == 0) - { - printf(".long 0x%lx", insn); - } - else - { - int i; - int paren = 0; - tag = (enum spu_insns)(index - spu_opcodes); - printf("%s", index->mnemonic); - if (tag == M_BI || tag == M_BISL || tag == M_IRET || tag == M_BISLED - || tag == M_BIHNZ || tag == M_BIHZ || tag == M_BINZ || tag == M_BIZ - || tag == M_SYNC || tag == M_HBR) + if (index == NULL) { - int fb = (insn >> (32-18)) & 0x7f; - if (fb & 0x40) - printf(tag == M_SYNC ? "c" : "p"); - if (fb & 0x20) - printf("d"); - if (fb & 0x10) - printf("e"); - } - if (index->arg[0] != 0) - printf("\t"); - hex_value = 0; - for (i = 1; i <= index->arg[0]; i++) + printf(".long 0x%lx", insn); + } else { - int arg = index->arg[i]; - if (arg != A_P && !paren && i > 1) - printf(","); - - switch (arg) - { - case A_T: - printf("$%lu", - DECODE_INSN_RT (insn)); - break; - case A_A: - printf("$%lu", - DECODE_INSN_RA (insn)); - break; - case A_B: - printf("$%lu", - DECODE_INSN_RB (insn)); - break; - case A_C: - printf("$%lu", - DECODE_INSN_RC (insn)); - break; - case A_S: - printf("$sp%lu", - DECODE_INSN_RA (insn)); - break; - case A_H: - printf("$ch%lu", - DECODE_INSN_RA (insn)); - break; - case A_P: - paren++; - printf("("); - break; - case A_U7A: - printf("%lu", - 173 - DECODE_INSN_U8 (insn)); - break; - case A_U7B: - printf("%lu", - 155 - DECODE_INSN_U8 (insn)); - break; - case A_S3: - case A_S6: - case A_S7: - case A_S7N: - case A_U3: - case A_U5: - case A_U6: - case A_U7: - hex_value = DECODE_INSN_I7 (insn); - printf("%d", hex_value); - break; - case A_S11: - print_address(memaddr + DECODE_INSN_I9a (insn) * 4); - break; - case A_S11I: - print_address(memaddr + DECODE_INSN_I9b (insn) * 4); - break; - case A_S10: - case A_S10B: - hex_value = DECODE_INSN_I10 (insn); - printf("%d", hex_value); - break; - case A_S14: - hex_value = DECODE_INSN_I10 (insn) * 16; - printf("%d", hex_value); - break; - case A_S16: - hex_value = DECODE_INSN_I16 (insn); - printf("%d", hex_value); - break; - case A_X16: - hex_value = DECODE_INSN_U16 (insn); - printf("%u", hex_value); - break; - case A_R18: - value = DECODE_INSN_I16 (insn) * 4; - if (value == 0) - printf("%d", value); - else + int i; + int paren = 0; + + tag = (enum spu_insns)(index - spu_opcodes); + + printf("%s", index->mnemonic); + if (tag == M_BI || tag == M_BISL || tag == M_IRET || tag == M_BISLED + || tag == M_BIHNZ || tag == M_BIHZ || tag == M_BINZ || tag == M_BIZ + || tag == M_SYNC || tag == M_HBR) { - hex_value = memaddr + value; - print_address(hex_value & 0x3ffff); + int fb = (insn >> (32-18)) & 0x7f; + + if (fb & 0x40) + printf(tag == M_SYNC ? "c" : "p"); + if (fb & 0x20) + printf("d"); + if (fb & 0x10) + printf("e"); } - break; - case A_S18: - value = DECODE_INSN_U16 (insn) * 4; - if (value == 0) - printf("%d", value); - else - print_address(value); - break; - case A_U18: - value = DECODE_INSN_U18 (insn); - if (value == 0 || 1) + if (index->arg[0] != 0) + printf("\t"); + hex_value = 0; + for (i = 1; i <= index->arg[0]; i++) { + int arg = index->arg[i]; + + if (arg != A_P && !paren && i > 1) + printf(","); + + switch (arg) { + case A_T: + printf("$%lu", + DECODE_INSN_RT(insn)); + break; + case A_A: + printf("$%lu", + DECODE_INSN_RA(insn)); + break; + case A_B: + printf("$%lu", + DECODE_INSN_RB(insn)); + break; + case A_C: + printf("$%lu", + DECODE_INSN_RC(insn)); + break; + case A_S: + printf("$sp%lu", + DECODE_INSN_RA(insn)); + break; + case A_H: + printf("$ch%lu", + DECODE_INSN_RA(insn)); + break; + case A_P: + paren++; + printf("("); + break; + case A_U7A: + printf("%lu", + 173 - DECODE_INSN_U8(insn)); + break; + case A_U7B: + printf("%lu", + 155 - DECODE_INSN_U8(insn)); + break; + case A_S3: + case A_S6: + case A_S7: + case A_S7N: + case A_U3: + case A_U5: + case A_U6: + case A_U7: + hex_value = DECODE_INSN_I7(insn); + printf("%d", hex_value); + break; + case A_S11: + print_address(memaddr + DECODE_INSN_I9a(insn) * 4); + break; + case A_S11I: + print_address(memaddr + DECODE_INSN_I9b(insn) * 4); + break; + case A_S10: + case A_S10B: + hex_value = DECODE_INSN_I10(insn); + printf("%d", hex_value); + break; + case A_S14: + hex_value = DECODE_INSN_I10(insn) * 16; + printf("%d", hex_value); + break; + case A_S16: + hex_value = DECODE_INSN_I16(insn); + printf("%d", hex_value); + break; + case A_X16: + hex_value = DECODE_INSN_U16(insn); + printf("%u", hex_value); + break; + case A_R18: + value = DECODE_INSN_I16(insn) * 4; + if (value == 0) + printf("%d", value); + else { + hex_value = memaddr + value; + print_address(hex_value & 0x3ffff); + } + break; + case A_S18: + value = DECODE_INSN_U16(insn) * 4; + if (value == 0) + printf("%d", value); + else + print_address(value); + break; + case A_U18: + value = DECODE_INSN_U18(insn); + if (value == 0 || 1) { + hex_value = value; + printf("%u", value); + } else + print_address(value); + break; + case A_U14: + hex_value = DECODE_INSN_U14(insn); + printf("%u", hex_value); + break; + } + if (arg != A_P && paren) { - hex_value = value; - printf("%u", value); + printf(")"); + paren--; } - else - print_address(value); - break; - case A_U14: - hex_value = DECODE_INSN_U14 (insn); - printf("%u", hex_value); - break; - } - if (arg != A_P && paren) - { - printf(")"); - paren--; - } } - if (hex_value > 16) - printf("\t# %x", hex_value); + if (hex_value > 16) + printf("\t# %x", hex_value); } return 4; } ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] powerpc/xmon: Fix comparing pointer 2023-06-14 5:48 ` wuyonggang001 @ 2023-06-14 5:54 ` Christophe Leroy 2023-06-14 8:25 ` Michael Ellerman 0 siblings, 1 reply; 5+ messages in thread From: Christophe Leroy @ 2023-06-14 5:54 UTC (permalink / raw) To: wuyonggang001@208suo.com, npiggin@gmail.com, mpe@ellerman.id.au Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Le 14/06/2023 à 07:48, wuyonggang001@208suo.com a écrit : > [Vous ne recevez pas souvent de courriers de wuyonggang001@208suo.com. > D?couvrez pourquoi ceci est important ? > https://aka.ms/LearnAboutSenderIdentification ] > > Fix the following coccicheck warning: > > arch/powerpc/xmon/spu-dis.c:51:34-35: WARNING comparing pointer to 0 Once again, why do you change the formating of the document ? > > Signed-off-by: Yonggang Wu <wuyonggang001@208suo.com> > --- > arch/powerpc/xmon/spu-dis.c | 384 ++++++++++++++++++------------------ > 1 file changed, 193 insertions(+), 191 deletions(-) > > diff --git a/arch/powerpc/xmon/spu-dis.c b/arch/powerpc/xmon/spu-dis.c > index 4b0a4e640f08..f48a2ddd7440 100644 > --- a/arch/powerpc/xmon/spu-dis.c > +++ b/arch/powerpc/xmon/spu-dis.c > @@ -22,216 +22,218 @@ extern const int spu_num_opcodes; > #define SPU_DISASM_TBL_SIZE (1 << 11) > static const struct spu_opcode > *spu_disassemble_table[SPU_DISASM_TBL_SIZE]; > > -static void > -init_spu_disassemble (void) > +static void init_spu_disassemble(void) > { > - int i; > - > - /* If two instructions have the same opcode then we prefer the first > - * one. In most cases it is just an alternate mnemonic. */ > - for (i = 0; i < spu_num_opcodes; i++) > - { > - int o = spu_opcodes[i].opcode; > - if (o >= SPU_DISASM_TBL_SIZE) > - continue; /* abort (); */ > - if (spu_disassemble_table[o] == 0) > - spu_disassemble_table[o] = &spu_opcodes[i]; > - } > + int i; > + > + /* > + * If two instructions have the same opcode then we prefer the > first > + * one. In most cases it is just an alternate mnemonic. > + */ > + for (i = 0; i < spu_num_opcodes; i++) { > + int o = spu_opcodes[i].opcode; > + > + if (o >= SPU_DISASM_TBL_SIZE) > + continue; /* abort(); */ > + if (spu_disassemble_table[o] == NULL) > + spu_disassemble_table[o] = &spu_opcodes[i]; > + } > } > > /* Determine the instruction from the 10 least significant bits. */ > -static const struct spu_opcode * > -get_index_for_opcode (unsigned int insn) > +static const struct spu_opcode *get_index_for_opcode(unsigned int insn) > { > - const struct spu_opcode *index; > - unsigned int opcode = insn >> (32-11); > - > - /* Init the table. This assumes that element 0/opcode 0 (currently > - * NOP) is always used */ > - if (spu_disassemble_table[0] == 0) > - init_spu_disassemble (); > - > - if ((index = spu_disassemble_table[opcode & 0x780]) != 0 > - && index->insn_type == RRR) > - return index; > - > - if ((index = spu_disassemble_table[opcode & 0x7f0]) != 0 > - && (index->insn_type == RI18 || index->insn_type == LBT)) > - return index; > - > - if ((index = spu_disassemble_table[opcode & 0x7f8]) != 0 > - && index->insn_type == RI10) > - return index; > - > - if ((index = spu_disassemble_table[opcode & 0x7fc]) != 0 > - && (index->insn_type == RI16)) > - return index; > - > - if ((index = spu_disassemble_table[opcode & 0x7fe]) != 0 > - && (index->insn_type == RI8)) > - return index; > - > - if ((index = spu_disassemble_table[opcode & 0x7ff]) != 0) > - return index; > - > - return NULL; > + const struct spu_opcode *index; > + unsigned int opcode = insn >> (32-11); > + > + /* > + * Init the table. This assumes that element 0/opcode 0 (currently > + * NOP) is always used > + */ > + if (spu_disassemble_table[0] == NULL) > + init_spu_disassemble(); > + > + index = spu_disassemble_table[opcode & 0x780]; > + if (index != NULL && index->insn_type == RRR) > + return index; > + > + index = spu_disassemble_table[opcode & 0x7f0]; > + if (index != NULL > + && (index->insn_type == RI18 || index->insn_type == LBT)) > + return index; > + > + index = spu_disassemble_table[opcode & 0x7f8]; > + if (index != NULL > + && index->insn_type == RI10) > + return index; > + > + index = spu_disassemble_table[opcode & 0x7fc] > + if (index != NULL && (index->insn_type == RI16)) > + return index; > + > + index = spu_disassemble_table[opcode & 0x7fe]; > + if (index != NULL && (index->insn_type == RI8)) > + return index; > + > + index = spu_disassemble_table[opcode & 0x7ff]; > + if (index != NULL) > + return index; > + > + return NULL; > } > > /* Print a Spu instruction. */ > > -int > -print_insn_spu (unsigned long insn, unsigned long memaddr) > +int print_insn_spu(unsigned long insn, unsigned long memaddr) > { > - int value; > - int hex_value; > - const struct spu_opcode *index; > - enum spu_insns tag; > + int value; > + int hex_value; > + const struct spu_opcode *index; > + enum spu_insns tag; > > - index = get_index_for_opcode (insn); > + index = get_index_for_opcode(insn); > > - if (index == 0) > - { > - printf(".long 0x%lx", insn); > - } > - else > - { > - int i; > - int paren = 0; > - tag = (enum spu_insns)(index - spu_opcodes); > - printf("%s", index->mnemonic); > - if (tag == M_BI || tag == M_BISL || tag == M_IRET || tag == > M_BISLED > - || tag == M_BIHNZ || tag == M_BIHZ || tag == M_BINZ || tag == > M_BIZ > - || tag == M_SYNC || tag == M_HBR) > + if (index == NULL) > { > - int fb = (insn >> (32-18)) & 0x7f; > - if (fb & 0x40) > - printf(tag == M_SYNC ? "c" : "p"); > - if (fb & 0x20) > - printf("d"); > - if (fb & 0x10) > - printf("e"); > - } > - if (index->arg[0] != 0) > - printf("\t"); > - hex_value = 0; > - for (i = 1; i <= index->arg[0]; i++) > + printf(".long 0x%lx", insn); > + } else > { > - int arg = index->arg[i]; > - if (arg != A_P && !paren && i > 1) > - printf(","); > - > - switch (arg) > - { > - case A_T: > - printf("$%lu", > - DECODE_INSN_RT (insn)); > - break; > - case A_A: > - printf("$%lu", > - DECODE_INSN_RA (insn)); > - break; > - case A_B: > - printf("$%lu", > - DECODE_INSN_RB (insn)); > - break; > - case A_C: > - printf("$%lu", > - DECODE_INSN_RC (insn)); > - break; > - case A_S: > - printf("$sp%lu", > - DECODE_INSN_RA (insn)); > - break; > - case A_H: > - printf("$ch%lu", > - DECODE_INSN_RA (insn)); > - break; > - case A_P: > - paren++; > - printf("("); > - break; > - case A_U7A: > - printf("%lu", > - 173 - DECODE_INSN_U8 (insn)); > - break; > - case A_U7B: > - printf("%lu", > - 155 - DECODE_INSN_U8 (insn)); > - break; > - case A_S3: > - case A_S6: > - case A_S7: > - case A_S7N: > - case A_U3: > - case A_U5: > - case A_U6: > - case A_U7: > - hex_value = DECODE_INSN_I7 (insn); > - printf("%d", hex_value); > - break; > - case A_S11: > - print_address(memaddr + DECODE_INSN_I9a (insn) * 4); > - break; > - case A_S11I: > - print_address(memaddr + DECODE_INSN_I9b (insn) * 4); > - break; > - case A_S10: > - case A_S10B: > - hex_value = DECODE_INSN_I10 (insn); > - printf("%d", hex_value); > - break; > - case A_S14: > - hex_value = DECODE_INSN_I10 (insn) * 16; > - printf("%d", hex_value); > - break; > - case A_S16: > - hex_value = DECODE_INSN_I16 (insn); > - printf("%d", hex_value); > - break; > - case A_X16: > - hex_value = DECODE_INSN_U16 (insn); > - printf("%u", hex_value); > - break; > - case A_R18: > - value = DECODE_INSN_I16 (insn) * 4; > - if (value == 0) > - printf("%d", value); > - else > + int i; > + int paren = 0; > + > + tag = (enum spu_insns)(index - spu_opcodes); > + > + printf("%s", index->mnemonic); > + if (tag == M_BI || tag == M_BISL || tag == M_IRET || tag == > M_BISLED > + || tag == M_BIHNZ || tag == M_BIHZ || tag == M_BINZ || tag == > M_BIZ > + || tag == M_SYNC || tag == M_HBR) > { > - hex_value = memaddr + value; > - print_address(hex_value & 0x3ffff); > + int fb = (insn >> (32-18)) & 0x7f; > + > + if (fb & 0x40) > + printf(tag == M_SYNC ? "c" : "p"); > + if (fb & 0x20) > + printf("d"); > + if (fb & 0x10) > + printf("e"); > } > - break; > - case A_S18: > - value = DECODE_INSN_U16 (insn) * 4; > - if (value == 0) > - printf("%d", value); > - else > - print_address(value); > - break; > - case A_U18: > - value = DECODE_INSN_U18 (insn); > - if (value == 0 || 1) > + if (index->arg[0] != 0) > + printf("\t"); > + hex_value = 0; > + for (i = 1; i <= index->arg[0]; i++) { > + int arg = index->arg[i]; > + > + if (arg != A_P && !paren && i > 1) > + printf(","); > + > + switch (arg) { > + case A_T: > + printf("$%lu", > + DECODE_INSN_RT(insn)); > + break; > + case A_A: > + printf("$%lu", > + DECODE_INSN_RA(insn)); > + break; > + case A_B: > + printf("$%lu", > + DECODE_INSN_RB(insn)); > + break; > + case A_C: > + printf("$%lu", > + DECODE_INSN_RC(insn)); > + break; > + case A_S: > + printf("$sp%lu", > + DECODE_INSN_RA(insn)); > + break; > + case A_H: > + printf("$ch%lu", > + DECODE_INSN_RA(insn)); > + break; > + case A_P: > + paren++; > + printf("("); > + break; > + case A_U7A: > + printf("%lu", > + 173 - DECODE_INSN_U8(insn)); > + break; > + case A_U7B: > + printf("%lu", > + 155 - DECODE_INSN_U8(insn)); > + break; > + case A_S3: > + case A_S6: > + case A_S7: > + case A_S7N: > + case A_U3: > + case A_U5: > + case A_U6: > + case A_U7: > + hex_value = DECODE_INSN_I7(insn); > + printf("%d", hex_value); > + break; > + case A_S11: > + print_address(memaddr + DECODE_INSN_I9a(insn) * 4); > + break; > + case A_S11I: > + print_address(memaddr + DECODE_INSN_I9b(insn) * 4); > + break; > + case A_S10: > + case A_S10B: > + hex_value = DECODE_INSN_I10(insn); > + printf("%d", hex_value); > + break; > + case A_S14: > + hex_value = DECODE_INSN_I10(insn) * 16; > + printf("%d", hex_value); > + break; > + case A_S16: > + hex_value = DECODE_INSN_I16(insn); > + printf("%d", hex_value); > + break; > + case A_X16: > + hex_value = DECODE_INSN_U16(insn); > + printf("%u", hex_value); > + break; > + case A_R18: > + value = DECODE_INSN_I16(insn) * 4; > + if (value == 0) > + printf("%d", value); > + else { > + hex_value = memaddr + value; > + print_address(hex_value & 0x3ffff); > + } > + break; > + case A_S18: > + value = DECODE_INSN_U16(insn) * 4; > + if (value == 0) > + printf("%d", value); > + else > + print_address(value); > + break; > + case A_U18: > + value = DECODE_INSN_U18(insn); > + if (value == 0 || 1) { > + hex_value = value; > + printf("%u", value); > + } else > + print_address(value); > + break; > + case A_U14: > + hex_value = DECODE_INSN_U14(insn); > + printf("%u", hex_value); > + break; > + } > + if (arg != A_P && paren) > { > - hex_value = value; > - printf("%u", value); > + printf(")"); > + paren--; > } > - else > - print_address(value); > - break; > - case A_U14: > - hex_value = DECODE_INSN_U14 (insn); > - printf("%u", hex_value); > - break; > - } > - if (arg != A_P && paren) > - { > - printf(")"); > - paren--; > - } > } > - if (hex_value > 16) > - printf("\t# %x", hex_value); > + if (hex_value > 16) > + printf("\t# %x", hex_value); > } > return 4; > } ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] powerpc/xmon: Fix comparing pointer 2023-06-14 5:54 ` Christophe Leroy @ 2023-06-14 8:25 ` Michael Ellerman 0 siblings, 0 replies; 5+ messages in thread From: Michael Ellerman @ 2023-06-14 8:25 UTC (permalink / raw) To: Christophe Leroy, wuyonggang001@208suo.com, npiggin@gmail.com Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Christophe Leroy <christophe.leroy@csgroup.eu> writes: > Le 14/06/2023 à 07:48, wuyonggang001@208suo.com a écrit : >> [Vous ne recevez pas souvent de courriers de wuyonggang001@208suo.com. >> D?couvrez pourquoi ceci est important ? >> https://aka.ms/LearnAboutSenderIdentification ] >> >> Fix the following coccicheck warning: >> >> arch/powerpc/xmon/spu-dis.c:51:34-35: WARNING comparing pointer to 0 > > Once again, why do you change the formating of the document ? And regardless, this file is taken from binutils, so we don't want to take pointless cleanup patches to it, because then it needlessly diverges from the binutils source. cheers ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2023-06-14 8:26 UTC | newest]
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2023-06-13 3:38 ` [PATCH] powerpc/xmon: Fix comparing pointer wuyonggang001
2023-06-13 6:06 ` Christophe Leroy
2023-06-14 5:48 ` wuyonggang001
2023-06-14 5:54 ` Christophe Leroy
2023-06-14 8:25 ` Michael Ellerman
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