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powerpc/fadump: Fix build error with CONFIG_PRESERVE_FA_DUMP=y 

skiroot_defconfig fails:

arch/powerpc/kernel/fadump.c:48:17: error: ‘cpus_in_fadump’ defined but not used
   48 | static atomic_t cpus_in_fadump;

Fix it by moving the definition into the #ifdef where it's used.

Fixes: ba608c4fa1 ("powerpc/fadump: fix race between pstore write and fadump crash trigger")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200727070341.595634-1-mpe@ellerman.id.au
This commit is contained in:
Michael Ellerman 2020-07-27 13:44:36 +10:00
parent 86052e407e
commit 5f987caec5
1 changed files with 3 additions and 1 deletions
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4
arch/powerpc/kernel/fadump.c
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@ -45,10 +45,12 @@ static struct fw_dump fw_dump;
static void __init fadump_reserve_crash_area(u64 base);
struct kobject *fadump_kobj;
static atomic_t cpus_in_fadump;
#ifndef CONFIG_PRESERVE_FA_DUMP
static atomic_t cpus_in_fadump;
static DEFINE_MUTEX(fadump_mutex);
struct fadump_mrange_info crash_mrange_info = { "crash", NULL, 0, 0, 0, false };
#define RESERVED_RNGS_SZ 16384 /* 16K - 128 entries */