Name CPU Opt patch properly and add other patches

Patch to enable link security restrictions by default.
Support for namespace user.pax.* on tmpfs
Enable link security restrictions by default.
Bluetooth: Check key sizes only when Secure Simple Pairing
is enabled. See bug #686758
tmp513 requies REGMAP_I2C to build.  Select it by default in
Kconfig. See bug #710790. Thanks to Phil Stracchino
sign-file: full functionality with modern LibreSSL
Add Gentoo Linux support config settings and defaults.
Kernel Self Protection patch CPU Optimization patch
Patch to print firmware info

Signed-off-by: Mike Pagano <mpagano@gentoo.org>

9 files changed, 217 insertions, 1 deletions

diff --git a/0000_README b/0000_README
index 90189932..0995b748 100644
--- a/0000_README
+++ b/0000_README
@@ -43,6 +43,38 @@ EXPERIMENTAL
 Individual Patch Descriptions:
 --------------------------------------------------------------------------
 
+Patch:  1500_XATTR_USER_PREFIX.patch
+From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
+Desc:   Support for namespace user.pax.* on tmpfs.
+
+Patch:  1510_fs-enable-link-security-restrictions-by-default.patch
+From:   http://sources.debian.net/src/linux/3.16.7-ckt4-3/debian/patches/debian/fs-enable-link-security-restrictions-by-default.patch/
+Desc:   Enable link security restrictions by default.
+
+Patch:  2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch
+From:   https://lore.kernel.org/linux-bluetooth/20190522070540.48895-1-marcel@holtmann.org/raw
+Desc:   Bluetooth: Check key sizes only when Secure Simple Pairing is enabled. See bug #686758
+
+Patch:  2900_tmp513-Fix-build-issue-by-selecting-CONFIG_REG.patch
+From:   https://bugs.gentoo.org/710790
+Desc:   tmp513 requies REGMAP_I2C to build.  Select it by default in Kconfig. See bug #710790. Thanks to Phil Stracchino
+
+Patch:  2920_sign-file-patch-for-libressl.patch
+From:   https://bugs.gentoo.org/717166
+Desc:   sign-file: full functionality with modern LibreSSL
+
+Patch:  3000_Support-printing-firmware-info.patch
+From:   https://bugs.gentoo.org/732852
+Desc:   Print firmware info (Reqs CONFIG_GENTOO_PRINT_FIRMWARE_INFO). Thanks to Georgy Yakovlev
+
 Patch:  4567_distro-Gentoo-Kconfig.patch
 From:   Tom Wijsman <TomWij@gentoo.org>
 Desc:   Add Gentoo Linux support config settings and defaults.
+
+Patch:  5010_enable-cpu-optimizations-universal.patch
+From:   https://github.com/graysky2/kernel_compiler_patch
+Desc:   Kernel >= 5.8 patch enables gcc = v9+ optimizations for additional CPUs.
+
+Patch:  5021_BMQ-and-PDS-gentoo-defaults.patch
+From:   https://gitweb.gentoo.org/proj/linux-patches.git/
+Desc:   Set defaults for BMQ. Add archs as people test, default to N
diff --git a/1500_XATTR_USER_PREFIX.patch b/1500_XATTR_USER_PREFIX.patch
new file mode 100644
index 00000000..245dcc29
--- /dev/null
+++ b/1500_XATTR_USER_PREFIX.patch
@@ -0,0 +1,67 @@
+From: Anthony G. Basile <blueness@gentoo.org>
+
+This patch adds support for a restricted user-controlled namespace on
+tmpfs filesystem used to house PaX flags.  The namespace must be of the
+form user.pax.* and its value cannot exceed a size of 8 bytes.
+
+This is needed even on all Gentoo systems so that XATTR_PAX flags
+are preserved for users who might build packages using portage on
+a tmpfs system with a non-hardened kernel and then switch to a
+hardened kernel with XATTR_PAX enabled.
+
+The namespace is added to any user with Extended Attribute support
+enabled for tmpfs.  Users who do not enable xattrs will not have
+the XATTR_PAX flags preserved.
+
+diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h
+index 1590c49..5eab462 100644
+--- a/include/uapi/linux/xattr.h
++++ b/include/uapi/linux/xattr.h
+@@ -73,5 +73,9 @@
+ #define XATTR_POSIX_ACL_DEFAULT  "posix_acl_default"
+ #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT
+ 
++/* User namespace */
++#define XATTR_PAX_PREFIX XATTR_USER_PREFIX "pax."
++#define XATTR_PAX_FLAGS_SUFFIX "flags"
++#define XATTR_NAME_PAX_FLAGS XATTR_PAX_PREFIX XATTR_PAX_FLAGS_SUFFIX
+ 
+ #endif /* _UAPI_LINUX_XATTR_H */
+--- a/mm/shmem.c	2020-05-04 15:30:27.042035334 -0400
++++ b/mm/shmem.c	2020-05-04 15:34:57.013881725 -0400
+@@ -3238,6 +3238,14 @@ static int shmem_xattr_handler_set(const
+ 	struct shmem_inode_info *info = SHMEM_I(inode);
+ 
+ 	name = xattr_full_name(handler, name);
++
++	if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) {
++		if (strcmp(name, XATTR_NAME_PAX_FLAGS))
++			return -EOPNOTSUPP;
++		if (size > 8)
++			return -EINVAL;
++	}
++
+ 	return simple_xattr_set(&info->xattrs, name, value, size, flags, NULL);
+ }
+ 
+@@ -3253,6 +3261,12 @@ static const struct xattr_handler shmem_
+ 	.set = shmem_xattr_handler_set,
+ };
+ 
++static const struct xattr_handler shmem_user_xattr_handler = {
++	.prefix = XATTR_USER_PREFIX,
++	.get = shmem_xattr_handler_get,
++	.set = shmem_xattr_handler_set,
++};
++
+ static const struct xattr_handler *shmem_xattr_handlers[] = {
+ #ifdef CONFIG_TMPFS_POSIX_ACL
+ 	&posix_acl_access_xattr_handler,
+@@ -3260,6 +3274,7 @@ static const struct xattr_handler *shmem
+ #endif
+ 	&shmem_security_xattr_handler,
+ 	&shmem_trusted_xattr_handler,
++	&shmem_user_xattr_handler,
+ 	NULL
+ };
+ 
diff --git a/1510_fs-enable-link-security-restrictions-by-default.patch b/1510_fs-enable-link-security-restrictions-by-default.patch
new file mode 100644
index 00000000..f0ed144f
--- /dev/null
+++ b/1510_fs-enable-link-security-restrictions-by-default.patch
@@ -0,0 +1,20 @@
+From: Ben Hutchings <ben@decadent.org.uk>
+Subject: fs: Enable link security restrictions by default
+Date: Fri, 02 Nov 2012 05:32:06 +0000
+Bug-Debian: https://bugs.debian.org/609455
+Forwarded: not-needed
+This reverts commit 561ec64ae67ef25cac8d72bb9c4bfc955edfd415
+('VFS: don't do protected {sym,hard}links by default').
+--- a/fs/namei.c	2018-09-28 07:56:07.770005006 -0400
++++ b/fs/namei.c	2018-09-28 07:56:43.370349204 -0400
+@@ -885,8 +885,8 @@ static inline void put_link(struct namei
+ 		path_put(&last->link);
+ }
+ 
+-int sysctl_protected_symlinks __read_mostly = 0;
+-int sysctl_protected_hardlinks __read_mostly = 0;
++int sysctl_protected_symlinks __read_mostly = 1;
++int sysctl_protected_hardlinks __read_mostly = 1;
+ int sysctl_protected_fifos __read_mostly;
+ int sysctl_protected_regular __read_mostly;
+ 
diff --git a/2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch b/2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch
new file mode 100644
index 00000000..394ad48f
--- /dev/null
+++ b/2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch
@@ -0,0 +1,37 @@
+The encryption is only mandatory to be enforced when both sides are using
+Secure Simple Pairing and this means the key size check makes only sense
+in that case.
+
+On legacy Bluetooth 2.0 and earlier devices like mice the encryption was
+optional and thus causing an issue if the key size check is not bound to
+using Secure Simple Pairing.
+
+Fixes: d5bb334a8e17 ("Bluetooth: Align minimum encryption key size for LE and BR/EDR connections")
+Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
+Cc: stable@vger.kernel.org
+---
+ net/bluetooth/hci_conn.c | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
+index 3cf0764d5793..7516cdde3373 100644
+--- a/net/bluetooth/hci_conn.c
++++ b/net/bluetooth/hci_conn.c
+@@ -1272,8 +1272,13 @@ int hci_conn_check_link_mode(struct hci_conn *conn)
+ 			return 0;
+ 	}
+ 
+-	if (hci_conn_ssp_enabled(conn) &&
+-	    !test_bit(HCI_CONN_ENCRYPT, &conn->flags))
++	/* If Secure Simple Pairing is not enabled, then legacy connection
++	 * setup is used and no encryption or key sizes can be enforced.
++	 */
++	if (!hci_conn_ssp_enabled(conn))
++		return 1;
++
++	if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
+ 		return 0;
+ 
+ 	/* The minimum encryption key size needs to be enforced by the
+-- 
+2.20.1
diff --git a/2900_tmp513-Fix-build-issue-by-selecting-CONFIG_REG.patch b/2900_tmp513-Fix-build-issue-by-selecting-CONFIG_REG.patch
new file mode 100644
index 00000000..43356857
--- /dev/null
+++ b/2900_tmp513-Fix-build-issue-by-selecting-CONFIG_REG.patch
@@ -0,0 +1,30 @@
+From dc328d75a6f37f4ff11a81ae16b1ec88c3197640 Mon Sep 17 00:00:00 2001
+From: Mike Pagano <mpagano@gentoo.org>
+Date: Mon, 23 Mar 2020 08:20:06 -0400
+Subject: [PATCH 1/1] This driver requires REGMAP_I2C to build.  Select it by
+ default in Kconfig. Reported at gentoo bugzilla:
+ https://bugs.gentoo.org/710790
+Cc: mpagano@gentoo.org
+
+Reported-by: Phil Stracchino <phils@caerllewys.net>
+
+Signed-off-by: Mike Pagano <mpagano@gentoo.org>
+---
+ drivers/hwmon/Kconfig | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
+index 47ac20aee06f..530b4f29ba85 100644
+--- a/drivers/hwmon/Kconfig
++++ b/drivers/hwmon/Kconfig
+@@ -1769,6 +1769,7 @@ config SENSORS_TMP421
+ config SENSORS_TMP513
+ 	tristate "Texas Instruments TMP513 and compatibles"
+ 	depends on I2C
++	select REGMAP_I2C
+ 	help
+ 	  If you say yes here you get support for Texas Instruments TMP512,
+ 	  and TMP513 temperature and power supply sensor chips.
+-- 
+2.24.1
+
diff --git a/2920_sign-file-patch-for-libressl.patch b/2920_sign-file-patch-for-libressl.patch
new file mode 100644
index 00000000..e6ec017d
--- /dev/null
+++ b/2920_sign-file-patch-for-libressl.patch
@@ -0,0 +1,16 @@
+--- a/scripts/sign-file.c	2020-05-20 18:47:21.282820662 -0400
++++ b/scripts/sign-file.c	2020-05-20 18:48:37.991081899 -0400
+@@ -41,9 +41,10 @@
+  * signing with anything other than SHA1 - so we're stuck with that if such is
+  * the case.
+  */
+-#if defined(LIBRESSL_VERSION_NUMBER) || \
+-	OPENSSL_VERSION_NUMBER < 0x10000000L || \
+-	defined(OPENSSL_NO_CMS)
++#if defined(OPENSSL_NO_CMS) || \
++	( defined(LIBRESSL_VERSION_NUMBER) \
++	&& (LIBRESSL_VERSION_NUMBER < 0x3010000fL) ) || \
++	OPENSSL_VERSION_NUMBER < 0x10000000L
+ #define USE_PKCS7
+ #endif
+ #ifndef USE_PKCS7
diff --git a/3000_Support-printing-firmware-info.patch b/3000_Support-printing-firmware-info.patch
new file mode 100644
index 00000000..a630cfbe
--- /dev/null
+++ b/3000_Support-printing-firmware-info.patch
@@ -0,0 +1,14 @@
+--- a/drivers/base/firmware_loader/main.c	2021-08-24 15:42:07.025482085 -0400
++++ b/drivers/base/firmware_loader/main.c	2021-08-24 15:44:40.782975313 -0400
+@@ -809,6 +809,11 @@ _request_firmware(const struct firmware
+ 
+ 	ret = _request_firmware_prepare(&fw, name, device, buf, size,
+ 					offset, opt_flags);
++
++#ifdef CONFIG_GENTOO_PRINT_FIRMWARE_INFO
++        printk(KERN_NOTICE "Loading firmware: %s\n", name);
++#endif
++
+ 	if (ret <= 0) /* error or already assigned */
+ 		goto out;
+ 
diff --git a/4567_distro-Gentoo-Kconfig.patch b/4567_distro-Gentoo-Kconfig.patch
index d2175f08..74e80d3e 100644
--- a/4567_distro-Gentoo-Kconfig.patch
+++ b/4567_distro-Gentoo-Kconfig.patch
@@ -65,6 +65,7 @@
 +	select NET_NS
 +	select PID_NS
 +	select SYSVIPC
++	select USER_NS
 +	select UTS_NS
 +
 +	help
@@ -145,7 +146,6 @@
 +	select TIMERFD
 +	select TMPFS_POSIX_ACL
 +	select TMPFS_XATTR
-+	select USER_NS
 +
 +	select ANON_INODES
 +	select BLOCK
diff --git a/more-uarches-for-kernel-5.15+.patch b/5010_enable-cpu-optimizations-universal.patch
index b9e8ebbc..b9e8ebbc 100644
--- a/more-uarches-for-kernel-5.15+.patch
+++ b/5010_enable-cpu-optimizations-universal.patch