evie/android_kernel_oneplus_msm8998
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Merge "msm: ipa_v2: Protect ipa default routing table"

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Linux Build Service Account 2019-05-27 08:01:50 -07:00 • committed by Gerrit - the friendly Code Review server
commit cfb05dba82
1 changed files with 7 additions and 3 deletions
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10
drivers/platform/msm/ipa/ipa_v2/ipa_rt.c
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@ -1066,9 +1066,8 @@ static int __ipa_add_rt_rule(enum ipa_ip_type ip, const char *name,
* tables
*/
if (!strncmp(tbl->name, IPA_DFLT_RT_TBL_NAME, IPA_RESOURCE_NAME_MAX) &&
(tbl->rule_cnt > 0) && (at_rear != 0)) {
IPAERR("cannot add rule at end of tbl rule_cnt=%d at_rear=%d\n",
tbl->rule_cnt, at_rear);
(tbl->rule_cnt > 0)) {
IPAERR("cannot add rules to default rt table\n");
goto error;
}
@ -1605,6 +1604,11 @@ static int __ipa_mdfy_rt_rule(struct ipa_rt_rule_mdfy *rtrule)
goto error;
}
if (!strcmp(entry->tbl->name, IPA_DFLT_RT_TBL_NAME)) {
IPAERR_RL("Default tbl rule cannot be modified\n");
return -EINVAL;
}
/* Adding check to confirm still
* header entry present in header table or not
*/