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 5224e1c8088a34d46a571e7d341c18e7398ab181..9fb6f7befd6bfea40752623e6b7f66e30759fe18 100644 (file)
--- 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 5f4ded36e0c6c62dbd5f4f0176141884da9c4327..2d250219a87e5a68bb305bc4ae4acd83718000e8 100644 (file)
--- 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 bb6048971466f1c80b3589d8dafbd648cc0cc4b5..bb7f44a2c4dc438c7d84f4e9adae61874e11d2f7 100644 (file)
--- 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