From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 22 Apr 2023 17:48:54 +0000 (+0200)
Subject: kernel: Deactivate CONFIG_COMPAT
X-Git-Url: http://git.openwrt.org/?a=commitdiff_plain;h=7815c55f7d0ee4bef94ddc54c4845c399f964719;p=openwrt%2Fstaging%2Fldir.git

kernel: Deactivate CONFIG_COMPAT

This deactivates the CONFIG_COMPAT kernel option.
With CONFIG_COMPAT the kernel will provide syscall interfaces for arm32
binaries in addition to the interfaces needed for arm64 binaries.

In OpenWrt the complete userspace is compiled for this specific
architecture and support for 32 bit ARM applications is not needed.
This reduces the size and the attack surface for the systems.

On all other targets CONFIG_COMPAT is already deactivated.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---

diff --git a/target/linux/mediatek/mt7622/config-5.15 b/target/linux/mediatek/mt7622/config-5.15
index 5224e1c808..9fb6f7befd 100644
--- a/target/linux/mediatek/mt7622/config-5.15
+++ b/target/linux/mediatek/mt7622/config-5.15
@@ -87,11 +87,7 @@ CONFIG_COMMON_CLK_MT7622_HIFSYS=y
 # CONFIG_COMMON_CLK_MT8183_VENCSYS is not set
 # CONFIG_COMMON_CLK_MT8516 is not set
 # CONFIG_COMMON_CLK_MT8516_AUDSYS is not set
-CONFIG_COMPAT=y
 CONFIG_COMPAT_32BIT_TIME=y
-CONFIG_COMPAT_BINFMT_ELF=y
-CONFIG_COMPAT_NETLINK_MESSAGES=y
-CONFIG_COMPAT_OLD_SIGACTION=y
 CONFIG_CONFIGFS_FS=y
 CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15
 # CONFIG_CPUFREQ_DT is not set
diff --git a/target/linux/rockchip/armv8/config-5.10 b/target/linux/rockchip/armv8/config-5.10
index 5f4ded36e0..2d250219a8 100644
--- a/target/linux/rockchip/armv8/config-5.10
+++ b/target/linux/rockchip/armv8/config-5.10
@@ -117,11 +117,7 @@ CONFIG_COMMON_CLK=y
 CONFIG_COMMON_CLK_RK808=y
 CONFIG_COMMON_CLK_ROCKCHIP=y
 CONFIG_COMMON_CLK_SCPI=y
-CONFIG_COMPAT=y
 CONFIG_COMPAT_32BIT_TIME=y
-CONFIG_COMPAT_BINFMT_ELF=y
-CONFIG_COMPAT_NETLINK_MESSAGES=y
-CONFIG_COMPAT_OLD_SIGACTION=y
 CONFIG_CONFIGFS_FS=y
 CONFIG_CONSOLE_TRANSLATIONS=y
 CONFIG_CONTIG_ALLOC=y
diff --git a/target/linux/rockchip/armv8/config-5.15 b/target/linux/rockchip/armv8/config-5.15
index bb60489714..bb7f44a2c4 100644
--- a/target/linux/rockchip/armv8/config-5.15
+++ b/target/linux/rockchip/armv8/config-5.15
@@ -115,10 +115,7 @@ CONFIG_COMMON_CLK=y
 CONFIG_COMMON_CLK_RK808=y
 CONFIG_COMMON_CLK_ROCKCHIP=y
 CONFIG_COMMON_CLK_SCPI=y
-CONFIG_COMPAT=y
 CONFIG_COMPAT_32BIT_TIME=y
-CONFIG_COMPAT_BINFMT_ELF=y
-CONFIG_COMPAT_OLD_SIGACTION=y
 CONFIG_CONFIGFS_FS=y
 CONFIG_CONSOLE_TRANSLATIONS=y
 CONFIG_CONTIG_ALLOC=y