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ARM: keystone: fix integer overflow warning
[ Upstream commit 844b85dda2
]
clang warns about an impossible condition when building with 32-bit
phys_addr_t:
arch/arm/mach-keystone/keystone.c:79:16: error: result of comparison of constant 51539607551 with expression of type 'phys_addr_t' (aka 'unsigned int') is always false [-Werror,-Wtautological-constant-out-of-range-compare]
mem_end > KEYSTONE_HIGH_PHYS_END) {
~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-keystone/keystone.c:78:16: error: result of comparison of constant 34359738368 with expression of type 'phys_addr_t' (aka 'unsigned int') is always true [-Werror,-Wtautological-constant-out-of-range-compare]
if (mem_start < KEYSTONE_HIGH_PHYS_START ||
~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~
Change the temporary variable to a fixed-size u64 to avoid the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Link: https://lore.kernel.org/r/20210323131814.2751750-1-arnd@kernel.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 2 additions and 2 deletions
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@ -65,7 +65,7 @@ static void __init keystone_init(void)
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static long long __init keystone_pv_fixup(void)
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{
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long long offset;
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phys_addr_t mem_start, mem_end;
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u64 mem_start, mem_end;
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mem_start = memblock_start_of_DRAM();
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mem_end = memblock_end_of_DRAM();
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@ -78,7 +78,7 @@ static long long __init keystone_pv_fixup(void)
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if (mem_start < KEYSTONE_HIGH_PHYS_START ||
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mem_end > KEYSTONE_HIGH_PHYS_END) {
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pr_crit("Invalid address space for memory (%08llx-%08llx)\n",
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(u64)mem_start, (u64)mem_end);
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mem_start, mem_end);
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return 0;
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}
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