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| author | Arnd Bergmann <arnd@arndb.de> | 2021-03-23 14:18:05 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-21 12:56:13 +0200 |
| commit | 4f02dc4d360fcbd23b5d2ecb57f53fcc9a225cff (patch) | |
| tree | 98d7600f8a5ddf39d914b51e8bb32893129e3fad /arch/arm/mach-keystone | |
| parent | f3183866b3da3d8e5594e835d1cca350e2608a92 (diff) | |
ARM: keystone: fix integer overflow warning
[ Upstream commit 844b85dda2f569943e1e018fdd63b6f7d1d6f08e ]
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>
Diffstat (limited to 'arch/arm/mach-keystone')
| -rw-r--r-- | arch/arm/mach-keystone/keystone.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c index 638808c4e122..697adedaced4 100644 --- a/arch/arm/mach-keystone/keystone.c +++ b/arch/arm/mach-keystone/keystone.c @@ -62,7 +62,7 @@ static void __init keystone_init(void) static long long __init keystone_pv_fixup(void) { long long offset; - phys_addr_t mem_start, mem_end; + u64 mem_start, mem_end; mem_start = memblock_start_of_DRAM(); mem_end = memblock_end_of_DRAM(); @@ -75,7 +75,7 @@ static long long __init keystone_pv_fixup(void) if (mem_start < KEYSTONE_HIGH_PHYS_START || mem_end > KEYSTONE_HIGH_PHYS_END) { pr_crit("Invalid address space for memory (%08llx-%08llx)\n", - (u64)mem_start, (u64)mem_end); + mem_start, mem_end); return 0; } |