[PATCH -next] drm/panthor: Use the BITS_PER_LONG macro

[Jinjie Ruan]

sizeof(unsigned long) * 8 is the number of bits in an unsigned long
variable, replace it with BITS_PER_LONG macro to make them simpler.

And fix the warning:
        WARNING: Comparisons should place the constant on the right side of the 
test
        #23: FILE: drivers/gpu/drm/panthor/panthor_mmu.c:2696:
        +       if (BITS_PER_LONG < va_bits) {

Signed-off-by: Jinjie Ruan <ruanjin...@huawei.com>
---
 drivers/gpu/drm/panthor/panthor_mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c 
b/drivers/gpu/drm/panthor/panthor_mmu.c
index d47972806d50..2a0c46391374 100644
--- a/drivers/gpu/drm/panthor/panthor_mmu.c
+++ b/drivers/gpu/drm/panthor/panthor_mmu.c
@@ -2693,7 +2693,7 @@ int panthor_mmu_init(struct panthor_device *ptdev)
         * which passes iova as an unsigned long. Patch the mmu_features to 
reflect this
         * limitation.
         */
-       if (sizeof(unsigned long) * 8 < va_bits) {
+       if (va_bits > BITS_PER_LONG) {
                ptdev->gpu_info.mmu_features &= ~GENMASK(7, 0);
                ptdev->gpu_info.mmu_features |= sizeof(unsigned long) * 8;
        }
-- 
2.34.1