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From 119fbcbd8c37aac314d6ffa6225ab24ee4b0e31e Mon Sep 17 00:00:00 2001
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From: Phil Sutter <psutter@redhat.com>
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Date: Tue, 30 Jun 2020 16:20:23 +0200
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Subject: [PATCH] segtree: Use expr_clone in get_set_interval_*()
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1832235
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Upstream Status: nftables commit a2eedcc89d2ed
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commit a2eedcc89d2ed40411c26d53579300c4f1ccb83d
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Author: Phil Sutter <phil@nwl.cc>
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Date: Thu Apr 30 13:45:40 2020 +0200
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segtree: Use expr_clone in get_set_interval_*()
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Both functions perform interval set lookups with either start and end or
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only start values as input. Interestingly, in practice they either see
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values which are not contained or which match an existing range exactly.
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Make use of the above and just return a clone of the matching entry
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instead of creating a new one based on input data.
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Signed-off-by: Phil Sutter <phil@nwl.cc>
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---
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src/segtree.c | 8 ++------
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1 file changed, 2 insertions(+), 6 deletions(-)
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diff --git a/src/segtree.c b/src/segtree.c
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index 1ba4363..dc4db6b 100644
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--- a/src/segtree.c
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+++ b/src/segtree.c
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@@ -695,9 +695,7 @@ static struct expr *get_set_interval_find(const struct table *table,
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range_expr_value_high(high, i);
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if (mpz_cmp(left->key->value, low) >= 0 &&
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mpz_cmp(right->key->value, high) <= 0) {
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- range = range_expr_alloc(&internal_location,
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- expr_clone(left->key),
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- expr_clone(right->key));
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+ range = expr_clone(i->key);
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goto out;
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}
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break;
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@@ -729,9 +727,7 @@ static struct expr *get_set_interval_end(const struct table *table,
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case EXPR_RANGE:
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range_expr_value_low(low, i);
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if (mpz_cmp(low, left->key->value) == 0) {
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- range = range_expr_alloc(&internal_location,
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- expr_clone(left->key),
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- expr_clone(i->key->right));
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+ range = expr_clone(i->key);
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goto out;
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}
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break;
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--
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1.8.3.1
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