From: Yanjiang Jin <yanjiang....@windriver.com>
do_div() expects the type of "n" to be uint64_t, define "lat_ns" as u64 to
avoid the below warning, also update its correlative operations and data.
In file included from ./arch/powerpc/include/asm/div64.h:1:0,
from include/linux/kernel.h:124,
from include/linux/list.h:8,
from include/linux/timer.h:4,
from drivers/net/ethernet/intel/e1000e/e1000.h:29,
from drivers/net/ethernet/intel/e1000e/ich8lan.c:59:
drivers/net/ethernet/intel/e1000e/ich8lan.c: In function
'e1000_platform_pm_pch_lpt':
include/asm-generic/div64.h:43:28: warning: comparison of distinct pointer
types lacks a cast [enabled by default]
(void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
^
drivers/net/ethernet/intel/e1000e/ich8lan.c:1016:4: note: in expansion of macro
'do_div'
do_div(lat_ns, speed);
Signed-off-by: Yanjiang Jin <yanjiang....@windriver.com>
---
drivers/net/ethernet/intel/e1000e/ich8lan.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c
b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index 48b74a5..baab58b 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -982,8 +982,8 @@ static s32 e1000_platform_pm_pch_lpt(struct e1000_hw *hw,
bool link)
u16 speed, duplex, scale = 0;
u16 max_snoop, max_nosnoop;
u16 max_ltr_enc; /* max LTR latency encoded */
- s64 lat_ns; /* latency (ns) */
- s64 value;
+ u64 lat_ns; /* latency (ns) */
+ u64 value;
u32 rxa;
if (!hw->adapter->max_frame_size) {
@@ -1008,8 +1008,8 @@ static s32 e1000_platform_pm_pch_lpt(struct e1000_hw *hw,
bool link)
* 2^25*(2^10-1) ns. The scale is encoded as 0=2^0ns,
* 1=2^5ns, 2=2^10ns,...5=2^25ns.
*/
- lat_ns = ((s64)rxa * 1024 -
- (2 * (s64)hw->adapter->max_frame_size)) * 8 * 1000;
+ lat_ns = ((u64)rxa * 1024 -
+ (2 * (u64)hw->adapter->max_frame_size)) * 8 * 1000;
if (lat_ns < 0)
lat_ns = 0;
else
--
1.9.1
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