From 1972a9b6c46536b24c9c24179bfcb17351a3a90c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maciej=20=C5=BBenczykowski?= <maze@google.com>
Date: Wed, 24 Mar 2021 03:53:35 -0700
Subject: [PATCH] Android U - require CONFIG_IFB=y
MIME-Version: 1.0
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Can be used for implementing better ingress rate limiting.

In practice already enabled on GKI 5.10+ since S.
  $ for i in AND510{S,T} AND515T ANDM; do cd /git/$i; echo; echo $i; git grep '^CONFIG_IFB=y$' | egrep gki_defconfig; done
  AND510S
  arch/arm64/configs/gki_defconfig:324:CONFIG_IFB=y
  arch/x86/configs/gki_defconfig:296:CONFIG_IFB=y

  AND510T
  arch/arm64/configs/gki_defconfig:337:CONFIG_IFB=y
  arch/x86/configs/gki_defconfig:308:CONFIG_IFB=y

  AND515T
  arch/arm64/configs/gki_defconfig:333:CONFIG_IFB=y
  arch/x86/configs/gki_defconfig:303:CONFIG_IFB=y

  ANDM
  arch/arm64/configs/gki_defconfig:325:CONFIG_IFB=y
  arch/x86/configs/gki_defconfig:298:CONFIG_IFB=y

Test: TreeHugger
Bug: 179454839
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I04cf0ca5dae83d73f91b75b99fd6263c7e686aef
---
 android-5.10/android-base.config | 1 +
 android-5.15/android-base.config | 1 +
 2 files changed, 2 insertions(+)

diff --git a/android-5.10/android-base.config b/android-5.10/android-base.config
index 52bf43d..40938ff 100644
--- a/android-5.10/android-base.config
+++ b/android-5.10/android-base.config
@@ -75,6 +75,7 @@ CONFIG_HIDRAW=y
 CONFIG_HID_SONY=y
 CONFIG_SONY_FF=y
 CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IFB=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_INET6_ESP=y
diff --git a/android-5.15/android-base.config b/android-5.15/android-base.config
index 5ce4ef6..74dfa78 100644
--- a/android-5.15/android-base.config
+++ b/android-5.15/android-base.config
@@ -75,6 +75,7 @@ CONFIG_HIDRAW=y
 CONFIG_HID_SONY=y
 CONFIG_SONY_FF=y
 CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IFB=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_INET6_ESP=y