[v2] eal, power: use UINT64_MAX instead of -1ULL
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Commit Message
use UINT64_MAX instead of -1ULL when manipulating uint64_t masks and
initializing sentinel values.
some compilers generate a warning when applying a '-' to an unsigned
literal so avoid this by initializing with unsigned preprocessor
definitions where appropriate.
Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
---
lib/librte_eal/common/eal_common_fbarray.c | 12 ++++++------
lib/librte_power/rte_power_pmd_mgmt.c | 2 +-
2 files changed, 7 insertions(+), 7 deletions(-)
@@ -138,7 +138,7 @@ find_next_n(const struct rte_fbarray *arr, unsigned int start, unsigned int n,
*/
last = MASK_LEN_TO_IDX(arr->len);
last_mod = MASK_LEN_TO_MOD(arr->len);
- last_msk = ~(-1ULL << last_mod);
+ last_msk = ~(UINT64_MAX << last_mod);
for (msk_idx = first; msk_idx < msk->n_masks; msk_idx++) {
uint64_t cur_msk, lookahead_msk;
@@ -398,8 +398,8 @@ find_prev_n(const struct rte_fbarray *arr, unsigned int start, unsigned int n,
first_mod = MASK_LEN_TO_MOD(start);
/* we're going backwards, so mask must start from the top */
ignore_msk = first_mod == MASK_ALIGN - 1 ?
- -1ULL : /* prevent overflow */
- ~(-1ULL << (first_mod + 1));
+ UINT64_MAX : /* prevent overflow */
+ ~(UINT64_MAX << (first_mod + 1));
/* go backwards, include zero */
msk_idx = first;
@@ -513,7 +513,7 @@ find_prev_n(const struct rte_fbarray *arr, unsigned int start, unsigned int n,
* no runs in the space we've lookbehind-scanned
* as well, so skip that on next iteration.
*/
- ignore_msk = -1ULL << need;
+ ignore_msk = UINT64_MAX << need;
msk_idx = lookbehind_idx;
break;
}
@@ -560,8 +560,8 @@ find_prev(const struct rte_fbarray *arr, unsigned int start, bool used)
first_mod = MASK_LEN_TO_MOD(start);
/* we're going backwards, so mask must start from the top */
ignore_msk = first_mod == MASK_ALIGN - 1 ?
- -1ULL : /* prevent overflow */
- ~(-1ULL << (first_mod + 1));
+ UINT64_MAX : /* prevent overflow */
+ ~(UINT64_MAX << (first_mod + 1));
/* go backwards, include zero */
idx = first;
@@ -111,7 +111,7 @@ clb_umwait(uint16_t port_id, uint16_t qidx, struct rte_mbuf **pkts __rte_unused,
ret = rte_eth_get_monitor_addr(port_id, qidx,
&pmc);
if (ret == 0)
- rte_power_monitor(&pmc, -1ULL);
+ rte_power_monitor(&pmc, UINT64_MAX);
}
q_conf->umwait_in_progress = false;