* |WARNING| pw122077-122078 [PATCH] [2/2] Memory Allocation: Alternative fix for ignore_msk during find_next_n() in fb_array library
@ 2023-01-15 20:37 dpdklab
0 siblings, 0 replies; only message in thread
From: dpdklab @ 2023-01-15 20:37 UTC (permalink / raw)
To: test-report; +Cc: dpdk-test-reports
[-- Attachment #1: Type: text/plain, Size: 3686 bytes --]
Test-Label: iol-testing
Test-Status: WARNING
http://dpdk.org/patch/122077
_apply patch failure_
Submitter: Vipin P R <vipinp@vmware.com>
Date: Friday, January 13 2023 13:14:29
Applied on: CommitID:83397b9f073904438965e1fda2efe76f7850fe01
Apply patch set 122077-122078 failed:
.git/rebase-apply/patch:18: trailing whitespace.
/* There aren't "need" number of contiguous bits anywhere in the mask.
.git/rebase-apply/patch:19: trailing whitespace.
* Ignore these many number of bits from LSB for the next iteration.
Checking patch lib/eal/common/eal_common_fbarray.c...
error: while searching for:
* no runs in the space we've lookahead-scanned
* as well, so skip that on next iteration.
*/
ignore_msk = ~((1ULL << need) - 1);
msk_idx = lookahead_idx - 1;
break;
}
error: patch failed: lib/eal/common/eal_common_fbarray.c:235
Applying patch lib/eal/common/eal_common_fbarray.c with 1 reject...
Rejected hunk #1.
diff a/lib/eal/common/eal_common_fbarray.c b/lib/eal/common/eal_common_fbarray.c (rejected hunks)
@@ -235,7 +235,12 @@ find_next_n(const struct rte_fbarray *arr, unsigned int start, unsigned int n,
* no runs in the space we've lookahead-scanned
* as well, so skip that on next iteration.
*/
- ignore_msk = ~((1ULL << need) - 1);
+ if (!lookahead_msk) {
+ /* There aren't "need" number of contiguous bits anywhere in the mask.
+ * Ignore these many number of bits from LSB for the next iteration.
+ */
+ ignore_msk = ~((1ULL << need) - 1);
+ }
msk_idx = lookahead_idx - 1;
break;
}
.git/rebase-apply/patch:32: trailing whitespace.
.git/rebase-apply/patch:56: trailing whitespace.
* starting from LSB of lookahead_msk_.
Checking patch lib/eal/common/eal_common_fbarray.c...
error: while searching for:
* as well, so skip that on next iteration.
*/
if (!lookahead_msk) {
/* There aren't "need" number of contiguous bits anywhere in the mask.
* Ignore these many number of bits from LSB for the next iteration.
*/
ignore_msk = ~((1ULL << need) - 1);
}
msk_idx = lookahead_idx - 1;
break;
error: patch failed: lib/eal/common/eal_common_fbarray.c:236
Applying patch lib/eal/common/eal_common_fbarray.c with 1 reject...
Hunk #1 applied cleanly.
Hunk #2 applied cleanly.
Rejected hunk #3.
diff a/lib/eal/common/eal_common_fbarray.c b/lib/eal/common/eal_common_fbarray.c (rejected hunks)
@@ -236,10 +238,23 @@ find_next_n(const struct rte_fbarray *arr, unsigned int start, unsigned int n,
* as well, so skip that on next iteration.
*/
if (!lookahead_msk) {
- /* There aren't "need" number of contiguous bits anywhere in the mask.
+ /* There aren't "need" number of contiguous bits anywhere in the mask.
* Ignore these many number of bits from LSB for the next iteration.
*/
ignore_msk = ~((1ULL << need) - 1);
+ } else {
+ /* Find the first clear bit */
+ fcb_idx = __builtin_ffsll((~lookahead_msk_));
+ /* clear all bits upto the first clear bit in lookahead_msk_. */
+ lookahead_msk_ = lookahead_msk_ & ((~0ULL) << fcb_idx);
+ /* find the first set bit in the modified mask */
+ fsb_idx = __builtin_ffsll(lookahead_msk_);
+ /* number of bits to ignore from the next iteration */
+ ignore_bits = fsb_idx - 1;
+ /* ignore all bits preceding the first set bit after the first clear bit
+ * starting from LSB of lookahead_msk_.
+ */
+ ignore_msk = ~((1ULL << ignore_bits) - 1);
}
msk_idx = lookahead_idx - 1;
break;
https://lab.dpdk.org/results/dashboard/patchsets/24989/
UNH-IOL DPDK Community Lab
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