When a ifdef is used in the below manner, second one could be considered as duplicate.
ifdef DEFINE_A ...code block... ifdef DEFINE_A <-- This is a duplicate. ...code block... endif else ifndef DEFINE_A <-- This is also duplicate. ...code block... endif endif More details about the script and methods used to find these code patterns are in cover letter of [1] Few places in arch/powerpc where this pattern was seen. Hunk1: Code is under check of CONFIG_PPC64 from line 13 in arch/powerpc/include/asm/paca.h. Hence the second CONFIG_PPC64 at line 166 is a duplicate. Hunk2: CONFIG_PPC_BOOK3S_64 was defined back to back. Merged the two ifdefs. Hunk3: Code is under check of CONFIG_PPC64 from line 176 in arch/powerpc/kernel/asm-offsets.c. Hence second CONFIG_PPC64 at line 249 is a duplicate. Hunk4: #ifndef CONFIG_PPC64 is used at line 2066 in arch/powerpc/platforms/powermac/feature.c. And then in #else again #ifdef CONFIG_PPC64 is used. Which is a duplicate since in #else means CONFIG_PPC64 is defined. Hunk5: Code is under the check of CONFIG_SMP from line 521 in arch/powerpc/xmon/xmon.c. Hence the same check of CONFIG_SMP at line 646 is a duplicate. No functional change is intended here. It only aims to improve code readability. [1] https://lore.kernel.org/all/20240118080326.13137-1-sshe...@linux.ibm.com/ Signed-off-by: Shrikanth Hegde <sshe...@linux.ibm.com> --- Changes from v2: - Converted from series to individual patches. - Dropped RFC tag. - Added more context on each hunk for review. arch/powerpc/include/asm/paca.h | 4 ---- arch/powerpc/kernel/asm-offsets.c | 2 -- arch/powerpc/platforms/powermac/feature.c | 2 -- arch/powerpc/xmon/xmon.c | 2 -- 4 files changed, 10 deletions(-) diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h index e667d455ecb4..1d58da946739 100644 --- a/arch/powerpc/include/asm/paca.h +++ b/arch/powerpc/include/asm/paca.h @@ -163,9 +163,7 @@ struct paca_struct { u64 kstack; /* Saved Kernel stack addr */ u64 saved_r1; /* r1 save for RTAS calls or PM or EE=0 */ u64 saved_msr; /* MSR saved here by enter_rtas */ -#ifdef CONFIG_PPC64 u64 exit_save_r1; /* Syscall/interrupt R1 save */ -#endif #ifdef CONFIG_PPC_BOOK3E_64 u16 trap_save; /* Used when bad stack is encountered */ #endif @@ -214,8 +212,6 @@ struct paca_struct { /* Non-maskable exceptions that are not performance critical */ u64 exnmi[EX_SIZE]; /* used for system reset (nmi) */ u64 exmc[EX_SIZE]; /* used for machine checks */ -#endif -#ifdef CONFIG_PPC_BOOK3S_64 /* Exclusive stacks for system reset and machine check exception. */ void *nmi_emergency_sp; void *mc_emergency_sp; diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 9f14d95b8b32..f029755f9e69 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -246,9 +246,7 @@ int main(void) OFFSET(PACAHWCPUID, paca_struct, hw_cpu_id); OFFSET(PACAKEXECSTATE, paca_struct, kexec_state); OFFSET(PACA_DSCR_DEFAULT, paca_struct, dscr_default); -#ifdef CONFIG_PPC64 OFFSET(PACA_EXIT_SAVE_R1, paca_struct, exit_save_r1); -#endif #ifdef CONFIG_PPC_BOOK3E_64 OFFSET(PACA_TRAP_SAVE, paca_struct, trap_save); #endif diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c index 81c9fbae88b1..2cc257f75c50 100644 --- a/arch/powerpc/platforms/powermac/feature.c +++ b/arch/powerpc/platforms/powermac/feature.c @@ -2333,7 +2333,6 @@ static struct pmac_mb_def pmac_mb_defs[] = { PMAC_TYPE_POWERMAC_G5, g5_features, 0, }, -#ifdef CONFIG_PPC64 { "PowerMac7,3", "PowerMac G5", PMAC_TYPE_POWERMAC_G5, g5_features, 0, @@ -2359,7 +2358,6 @@ static struct pmac_mb_def pmac_mb_defs[] = { 0, }, #endif /* CONFIG_PPC64 */ -#endif /* CONFIG_PPC64 */ }; /* diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index b3b94cd37713..f413c220165c 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -643,10 +643,8 @@ static int xmon_core(struct pt_regs *regs, volatile int fromipi) touch_nmi_watchdog(); } else { cmd = 1; -#ifdef CONFIG_SMP if (xmon_batch) cmd = batch_cmds(regs); -#endif if (!locked_down && cmd) cmd = cmds(regs); if (locked_down || cmd != 0) { -- 2.39.3
