linux-kernel - [PATCH v2 01/11] MIPS: setup: Drop prefill_possible

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Message-Id: <20200412032123.3896114-2-jiaxun.yang@flygoat.com>
Date:   Sun, 12 Apr 2020 11:20:31 +0800
From:   Jiaxun Yang <jiaxun.yang@...goat.com>
To:     linux-mips@...r.kernel.org
Cc:     dietmar.eggemann@....com, Jiaxun Yang <jiaxun.yang@...goat.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Huacai Chen <chenhc@...ote.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Robert Richter <rric@...nel.org>,
        Sudeep Holla <sudeep.holla@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
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        linux-pm@...r.kernel.org
Subject: [PATCH v2 01/11] MIPS: setup: Drop prefill_possible_map

All the plat_smp_setup are setting up possible cpus in their
platform code. So prefill_possible_map is actually overwriting
platform's setup, which seems unreasonable.

Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
---
 arch/mips/kernel/setup.c | 20 --------------------
 1 file changed, 20 deletions(-)

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 10bef8f78e7c..8a418783a6bb 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -761,25 +761,6 @@ static void __init resource_init(void)
 	}
 }
 
-#ifdef CONFIG_SMP
-static void __init prefill_possible_map(void)
-{
-	int i, possible = num_possible_cpus();
-
-	if (possible > nr_cpu_ids)
-		possible = nr_cpu_ids;
-
-	for (i = 0; i < possible; i++)
-		set_cpu_possible(i, true);
-	for (; i < NR_CPUS; i++)
-		set_cpu_possible(i, false);
-
-	nr_cpu_ids = possible;
-}
-#else
-static inline void prefill_possible_map(void) {}
-#endif
-
 void __init setup_arch(char **cmdline_p)
 {
 	cpu_probe();
@@ -804,7 +785,6 @@ void __init setup_arch(char **cmdline_p)
 
 	resource_init();
 	plat_smp_setup();
-	prefill_possible_map();
 
 	cpu_cache_init();
 	paging_init();
-- 
2.26.0.rc2