summaryrefslogtreecommitdiff
path: root/libre/linux-libre
diff options
context:
space:
mode:
Diffstat (limited to 'libre/linux-libre')
-rw-r--r--libre/linux-libre/0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch7
-rw-r--r--libre/linux-libre/0002-netfilter-nf_tables-fix-set-double-free-in-abort-pat.patch131
-rw-r--r--libre/linux-libre/PKGBUILD128
3 files changed, 64 insertions, 202 deletions
diff --git a/libre/linux-libre/0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch b/libre/linux-libre/0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
index c6b567471..fced98119 100644
--- a/libre/linux-libre/0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
+++ b/libre/linux-libre/0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
@@ -1,8 +1,7 @@
-From e71668257d1353a7bd428ec90f0871b038db813b Mon Sep 17 00:00:00 2001
+From 4272e4eff36395bf7e89550111219bede31013e2 Mon Sep 17 00:00:00 2001
From: Serge Hallyn <serge.hallyn@canonical.com>
Date: Fri, 31 May 2013 19:12:12 +0100
-Subject: [PATCH 1/2] add sysctl to disallow unprivileged CLONE_NEWUSER by
- default
+Subject: [PATCH] add sysctl to disallow unprivileged CLONE_NEWUSER by default
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
[bwh: Remove unneeded binary sysctl bits]
@@ -54,7 +53,7 @@ index b69248e6f0e0..3b1cd11dc6dc 100644
if (err)
goto bad_unshare_out;
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
-index ba4d9e85feb8..e88b93a850df 100644
+index d80bee8ff12e..ce7a1a5794a5 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -106,6 +106,9 @@ extern int core_uses_pid;
diff --git a/libre/linux-libre/0002-netfilter-nf_tables-fix-set-double-free-in-abort-pat.patch b/libre/linux-libre/0002-netfilter-nf_tables-fix-set-double-free-in-abort-pat.patch
deleted file mode 100644
index c092a69cb..000000000
--- a/libre/linux-libre/0002-netfilter-nf_tables-fix-set-double-free-in-abort-pat.patch
+++ /dev/null
@@ -1,131 +0,0 @@
-From 7a6c88347cc6dd3b0ade3be5e45cb932a07cec82 Mon Sep 17 00:00:00 2001
-From: Pablo Neira Ayuso <pablo@netfilter.org>
-Date: Fri, 8 Mar 2019 00:58:53 +0100
-Subject: [PATCH 2/2] netfilter: nf_tables: fix set double-free in abort path
-
-The abort path can cause a double-free of an anonymous set.
-Added-and-to-be-aborted rule looks like this:
-
-udp dport { 137, 138 } drop
-
-The to-be-aborted transaction list looks like this:
-
-newset
-newsetelem
-newsetelem
-rule
-
-This gets walked in reverse order, so first pass disables the rule, the
-set elements, then the set.
-
-After synchronize_rcu(), we then destroy those in same order: rule, set
-element, set element, newset.
-
-Problem is that the anonymous set has already been bound to the rule, so
-the rule (lookup expression destructor) already frees the set, when then
-cause use-after-free when trying to delete the elements from this set,
-then try to free the set again when handling the newset expression.
-
-Rule releases the bound set in first place from the abort path, this
-causes the use-after-free on set element removal when undoing the new
-element transactions. To handle this, skip new element transaction if
-set is bound from the abort path.
-
-This is still causes the use-after-free on set element removal. To
-handle this, remove transaction from the list when the set is already
-bound.
-
-Joint work with Florian Westphal.
-
-Fixes: f6ac85858976 ("netfilter: nf_tables: unbind set in rule from commit path")
-Bugzilla: https://bugzilla.netfilter.org/show_bug.cgi?id=1325
-Acked-by: Florian Westphal <fw@strlen.de>
-Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
----
- include/net/netfilter/nf_tables.h | 6 ++----
- net/netfilter/nf_tables_api.c | 17 +++++++++++------
- 2 files changed, 13 insertions(+), 10 deletions(-)
-
-diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
-index b4984bbbe157..3d58acf94dd2 100644
---- a/include/net/netfilter/nf_tables.h
-+++ b/include/net/netfilter/nf_tables.h
-@@ -416,7 +416,8 @@ struct nft_set {
- unsigned char *udata;
- /* runtime data below here */
- const struct nft_set_ops *ops ____cacheline_aligned;
-- u16 flags:14,
-+ u16 flags:13,
-+ bound:1,
- genmask:2;
- u8 klen;
- u8 dlen;
-@@ -1329,15 +1330,12 @@ struct nft_trans_rule {
- struct nft_trans_set {
- struct nft_set *set;
- u32 set_id;
-- bool bound;
- };
-
- #define nft_trans_set(trans) \
- (((struct nft_trans_set *)trans->data)->set)
- #define nft_trans_set_id(trans) \
- (((struct nft_trans_set *)trans->data)->set_id)
--#define nft_trans_set_bound(trans) \
-- (((struct nft_trans_set *)trans->data)->bound)
-
- struct nft_trans_chain {
- bool update;
-diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
-index 4893f248dfdc..e1724f9d8b9d 100644
---- a/net/netfilter/nf_tables_api.c
-+++ b/net/netfilter/nf_tables_api.c
-@@ -127,7 +127,7 @@ static void nft_set_trans_bind(const struct nft_ctx *ctx, struct nft_set *set)
- list_for_each_entry_reverse(trans, &net->nft.commit_list, list) {
- if (trans->msg_type == NFT_MSG_NEWSET &&
- nft_trans_set(trans) == set) {
-- nft_trans_set_bound(trans) = true;
-+ set->bound = true;
- break;
- }
- }
-@@ -6617,8 +6617,7 @@ static void nf_tables_abort_release(struct nft_trans *trans)
- nf_tables_rule_destroy(&trans->ctx, nft_trans_rule(trans));
- break;
- case NFT_MSG_NEWSET:
-- if (!nft_trans_set_bound(trans))
-- nft_set_destroy(nft_trans_set(trans));
-+ nft_set_destroy(nft_trans_set(trans));
- break;
- case NFT_MSG_NEWSETELEM:
- nft_set_elem_destroy(nft_trans_elem_set(trans),
-@@ -6691,8 +6690,11 @@ static int __nf_tables_abort(struct net *net)
- break;
- case NFT_MSG_NEWSET:
- trans->ctx.table->use--;
-- if (!nft_trans_set_bound(trans))
-- list_del_rcu(&nft_trans_set(trans)->list);
-+ if (nft_trans_set(trans)->bound) {
-+ nft_trans_destroy(trans);
-+ break;
-+ }
-+ list_del_rcu(&nft_trans_set(trans)->list);
- break;
- case NFT_MSG_DELSET:
- trans->ctx.table->use++;
-@@ -6700,8 +6702,11 @@ static int __nf_tables_abort(struct net *net)
- nft_trans_destroy(trans);
- break;
- case NFT_MSG_NEWSETELEM:
-+ if (nft_trans_elem_set(trans)->bound) {
-+ nft_trans_destroy(trans);
-+ break;
-+ }
- te = (struct nft_trans_elem *)trans->data;
--
- te->set->ops->remove(net, te->set, &te->elem);
- atomic_dec(&te->set->nelems);
- break;
---
-2.21.0
-
diff --git a/libre/linux-libre/PKGBUILD b/libre/linux-libre/PKGBUILD
index b8a1499ef..6f8492b70 100644
--- a/libre/linux-libre/PKGBUILD
+++ b/libre/linux-libre/PKGBUILD
@@ -12,7 +12,7 @@
pkgbase=linux-libre # Build stock kernel
#pkgbase=linux-libre-custom # Build kernel with a different name
_srcbasever=5.0-gnu
-_srcver=5.0.5-gnu
+_srcver=5.0.6-gnu
_replacesarchkernel=('linux%') # '%' gets replaced with _kernelname
_replacesoldkernels=() # '%' gets replaced with _kernelname
@@ -22,7 +22,7 @@ _srcname=linux-${_srcbasever%-*}
_archpkgver=${_srcver%-*}
pkgver=${_srcver//-/_}
pkgrel=1
-rcnrel=armv7-x6
+rcnrel=armv7-x8
arch=(i686 x86_64 armv7h)
url='https://linux-libre.fsfla.org/'
license=(GPL2)
@@ -32,18 +32,26 @@ options=('!strip')
source=(
"https://linux-libre.fsfla.org/pub/linux-libre/releases/$_srcbasever/linux-libre-$_srcbasever.tar.xz"{,.sign}
"https://linux-libre.fsfla.org/pub/linux-libre/releases/$_srcver/patch-$_srcbasever-$_srcver.xz"{,.sign}
- "https://repo.parabola.nu/other/linux-libre/logos/logo_linux_clut224.ppm"{,.sig}
- "https://repo.parabola.nu/other/linux-libre/logos/logo_linux_mono.pbm"{,.sig}
- "https://repo.parabola.nu/other/linux-libre/logos/logo_linux_vga16.ppm"{,.sig}
- # the main kernel config files
- config.i686 config.x86_64 config.armv7h
- # pacman hooks for depmod and initramfs regeneration
- 60-linux.hook 90-linux.hook
- # standard config files for mkinitcpio ramdisk
- linux.preset
- # files for signing Chromebooks kernels
- kernel.its kernel.keyblock kernel_data_key.vbprivk
- # armv7h patches
+ "https://repo.parabola.nu/other/linux-libre/logos/logo_linux_"{clut224.ppm,vga16.ppm,mono.pbm}{,.sig}
+ config.i686 config.x86_64 config.armv7h # the main kernel config files
+ 60-linux.hook # pacman hook for depmod
+ 90-linux.hook # pacman hook for initramfs regeneration
+ linux.preset # standard config files for mkinitcpio ramdisk
+ "kernel"{.its,.keyblock,_data_key.vbprivk} # files for signing Chromebooks kernels
+
+ # maintain the TTY over USB disconnects
+ # http://www.coreboot.org/EHCI_Gadget_Debug
+ 0001-usb-serial-gadget-no-TTY-hangup-on-USB-disconnect-WI.patch
+ # fix Atmel maXTouch touchscreen support
+ # https://labs.parabola.nu/issues/877
+ # http://www.fsfla.org/pipermail/linux-libre/2015-November/003202.html
+ 0002-fix-Atmel-maXTouch-touchscreen-support.patch
+
+ # Arch's custom linux patches
+ 0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
+)
+source_armv7h=(
+ # armv7h patches, put in the source_armv7h variable just for a more comfortable loop patching
"https://repo.parabola.nu/other/rcn-libre/patches/${_srcver%-*}/rcn-libre-${_srcver%-*}-$rcnrel.patch"{,.sig}
0001-ARM-atags-add-support-for-Marvell-s-u-boot.patch
0002-ARM-atags-fdt-retrieve-MAC-addresses-from-Marvell-bo.patch
@@ -54,11 +62,6 @@ source=(
0007-exynos4412-odroid-set-higher-minimum-buck2-regulator.patch
0008-ARM-dove-enable-ethernet-on-D3Plug.patch
0009-media-s5p-mfc-fix-incorrect-bus-assignment-in-virtua.patch
- # other patches
- 0001-usb-serial-gadget-no-TTY-hangup-on-USB-disconnect-WI.patch
- 0002-fix-Atmel-maXTouch-touchscreen-support.patch
- 0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
- 0002-netfilter-nf_tables-fix-set-double-free-in-abort-pat.patch
)
validpgpkeys=(
'474402C8C582DAFBE389C427BCB7CF877E7D47A7' # Alexandre Oliva
@@ -66,14 +69,14 @@ validpgpkeys=(
)
sha512sums=('56b8e77eb445c92c3e0ec0dc45fa5fb09641cad18003b79991652b83cf1d96cc1651750dfa9eec15652108a1b8aff1781c4f8ec5f92784b8542e59e0605922d9'
'SKIP'
- '5331dacd07dca625cebb3a05cf9779fd2d9260d78cec072508a360506c2fcc23a8783b3961c8438849d0155ab9f00d2f907fe2329d5734fac9cba637ce06529c'
+ 'c015da00812cfc9cb16e408807338d2e09270e3b33deb85c5cab36e9c2e6155dbc2a3653d744de272032d524bbb59b428984debf1369e42b788b51caf4591526'
'SKIP'
'13cb5bc42542e7b8bb104d5f68253f6609e463b6799800418af33eb0272cc269aaa36163c3e6f0aacbdaaa1d05e2827a4a7c4a08a029238439ed08b89c564bb3'
'SKIP'
- '267295aa0cea65684968420c68b32f1a66a22d018b9d2b2c1ef14267bcf4cb68aaf7099d073cbfefe6c25c8608bdcbbd45f7ac8893fdcecbf1e621abdfe9ecc1'
- 'SKIP'
'7a3716bfe3b9f546da309c7492f3e08f8f506813afeb1c737a474c83313d5c313cf4582b65215c2cfce3b74d9d1021c96e8badafe8f6e5b01fe28d2b5c61ae78'
'SKIP'
+ '267295aa0cea65684968420c68b32f1a66a22d018b9d2b2c1ef14267bcf4cb68aaf7099d073cbfefe6c25c8608bdcbbd45f7ac8893fdcecbf1e621abdfe9ecc1'
+ 'SKIP'
'70776ba8c99c778acd48e22d1396ef5e6419a6f78828776067b32081e345ba82510f05bae2d4cf07a2cb8b00406c607c38097425ff9cad9dabac6ff9c3f7feeb'
'd676726b536ea6bf255e5fd70ed0dbd97fa24ec29b6a6a36f438705b2be4c842127b2f5bd7b5270d99588fa75e3d3674d28113defcd665f11feb518022f032a3'
'4b9e98e440426036fd9330b5a2408ceb9a871b14e9686933c43678bc9f55020df48d177bbd1c4333fe84dc95db095cc6043cfe421b4e2ea954d6ffbe2b8c7dda'
@@ -83,21 +86,20 @@ sha512sums=('56b8e77eb445c92c3e0ec0dc45fa5fb09641cad18003b79991652b83cf1d96cc165
'167bc73c6c1c63931806238905dc44c7d87c5a5c0f6293159f2133dfe717fb44081018d810675716d1605ec7dff5e8333b87b19e09e2de21d0448e447437873b'
'bb6718984a7357c9b00c37e4788480e5b8b75018c172ecc1441bc3fc5d2d42444eb5d8c7f9d2e3a7d6fed6d03acb565e3c0559486e494c40a7fe6bd0570c9ede'
'143dea30c6da00e504c99984a98a0eb2411f558fcdd9dfa7f607d6c14e9e7dffff9cb00121d9317044b07e3e210808286598c785ee854084b993ec9cb14d8232'
- '86efeee41eff41928ce2ce8926dc11d34799437d415cf51239ee7e9cf04b82a20cbb6d11b89af2ae7c6c0464afb57369133093653acaf3a0e0ff9d7630d00834'
- 'SKIP'
- '6e2eed5e047d95a825241bf30bd09e3edad7787f1f742ca5cf3cf53f4f1383ca7ede306f12cf522fa1175930b3dde550994ef085bf6d93761babfe976dc94ca2'
- '32a185f7d8b93e8cb70bee0d32eb6876ac0a976abe550ec83de1fc57963b0879872831c671f4aa5281b4def9bf81660c92809047eda9a9ada939bdf5b7d32dbc'
- 'b523cc0978f6426162d8ef82dc44763fca7ca57c8bf3b2b27549d7ed7d873389ba3acf00dfe5576ceef991d31ba39613c3203195cb5a91900330c997c9b0efff'
- 'd85f97025f21c26b438afb599af13939bae3ff769c1d1055bdcf9130a1449703a26ecf04ce715390570c14d6b91b693e7b220e7cff0576f9775990ee2fe75113'
- 'a3b846c5a79afdfc5233ba5020cb8fc91bad0864bd811204f29191f8b2e7dd76cb19d8fa38cac55ad3adbbd4126f3b2102b03016fe9423bd7d0d252ed1b4c460'
- 'd547f6ef7f876690092622c7b7de6995b972e46f25b34fac92b301d90ad7b04f993341346bbc54284e5338e5bbf76ccdfa42485842ed0a0b4a8414cf8a16412a'
- 'b3cc320e6414c6a9a287df405cc6768cbc204bd859189c4c3f6902e55fd425ad7f05743ea6db3996c99a49f6b3a175d83c8fb05fd4314c2b1a3df52e8b1b16f3'
- 'bed58fede674b139e470a2593c3d07f61f7f771d86ce137a5cf7e1b5cc53a8c2127439f7ef2bee9daaf554555f6cb9bb80cf35bbe6a6adf10a04cb5a93d0cc8f'
- '17b09c80b0c235a5395c350c2b1acfda1c549c5bb6017f6a7056a84686fe23d7983a40f416cfc1da075523ad87d39ff4ff7b4057a275705679830db15b621991'
'02af4dd2a007e41db0c63822c8ab3b80b5d25646af1906dc85d0ad9bb8bbf5236f8e381d7f91cf99ed4b0978c50aee37cb9567cdeef65b7ec3d91b882852b1af'
'b8fe56e14006ab866970ddbd501c054ae37186ddc065bb869cf7d18db8c0d455118d5bda3255fb66a0dde38b544655cfe9040ffe46e41d19830b47959b2fb168'
- '0016e750127728458ab23ef445f92a8b52064806f235c03dd92e699a8bfb397d6274f6ba484a99af19ed729f6c63bab714bd350c7e7ed82c30a4b62b29857ff7'
- '8348ecfeec519a41c68f1a97ec4b6007b3ed5ed61c271733d562ae22c6c85e4e217eb6c367bb53f3c53ad72f311360bd3aa57d09fba7cda358748c2bdd0416c2')
+ '7748427819372a27b5aa9b3ce8cc8c75397bc3a76ac4fddd06f497ce5a1b34c2e15b6301e764e6e007ad66a49bb3f9c49e906c179875e115d213d2682ddb2576')
+sha512sums_armv7h=('4f185601aa569db7ee2033d6360f284aede970ea02093fdbfe25e2a3bc7463b55180678192974ce38e425ea3ecb8193a58cb7442c9390429c1dabd13afc9be8e'
+ 'SKIP'
+ '6e2eed5e047d95a825241bf30bd09e3edad7787f1f742ca5cf3cf53f4f1383ca7ede306f12cf522fa1175930b3dde550994ef085bf6d93761babfe976dc94ca2'
+ '32a185f7d8b93e8cb70bee0d32eb6876ac0a976abe550ec83de1fc57963b0879872831c671f4aa5281b4def9bf81660c92809047eda9a9ada939bdf5b7d32dbc'
+ 'b523cc0978f6426162d8ef82dc44763fca7ca57c8bf3b2b27549d7ed7d873389ba3acf00dfe5576ceef991d31ba39613c3203195cb5a91900330c997c9b0efff'
+ 'd85f97025f21c26b438afb599af13939bae3ff769c1d1055bdcf9130a1449703a26ecf04ce715390570c14d6b91b693e7b220e7cff0576f9775990ee2fe75113'
+ 'a3b846c5a79afdfc5233ba5020cb8fc91bad0864bd811204f29191f8b2e7dd76cb19d8fa38cac55ad3adbbd4126f3b2102b03016fe9423bd7d0d252ed1b4c460'
+ 'd547f6ef7f876690092622c7b7de6995b972e46f25b34fac92b301d90ad7b04f993341346bbc54284e5338e5bbf76ccdfa42485842ed0a0b4a8414cf8a16412a'
+ 'b3cc320e6414c6a9a287df405cc6768cbc204bd859189c4c3f6902e55fd425ad7f05743ea6db3996c99a49f6b3a175d83c8fb05fd4314c2b1a3df52e8b1b16f3'
+ 'bed58fede674b139e470a2593c3d07f61f7f771d86ce137a5cf7e1b5cc53a8c2127439f7ef2bee9daaf554555f6cb9bb80cf35bbe6a6adf10a04cb5a93d0cc8f'
+ '17b09c80b0c235a5395c350c2b1acfda1c549c5bb6017f6a7056a84686fe23d7983a40f416cfc1da075523ad87d39ff4ff7b4057a275705679830db15b621991')
_kernelname=${pkgbase#linux-libre}
_replacesarchkernel=("${_replacesarchkernel[@]/\%/${_kernelname}}")
@@ -117,47 +119,39 @@ prepare() {
patch -p1 -i ../patch-$_srcbasever-$_srcver
fi
- if [ "$CARCH" = "armv7h" ]; then
- # RCN patch (CM3 firmware deblobbed and AUFS/WireGuard removed)
- # Note: For stability reasons, AUFS has been removed in the RCN patch.
- # We are supporting AUFS in linux-libre-pck through PCK patch.
- # See https://wiki.parabola.nu/PCK for further details.
- patch -p1 -i ../rcn-libre-${_srcver%-*}-$rcnrel.patch
-
- # ALARM patches
- patch -p1 -i ../0001-ARM-atags-add-support-for-Marvell-s-u-boot.patch
- patch -p1 -i ../0002-ARM-atags-fdt-retrieve-MAC-addresses-from-Marvell-bo.patch
- patch -p1 -i ../0003-SMILE-Plug-device-tree-file.patch
- patch -p1 -i ../0004-fix-mvsdio-eMMC-timing.patch
- patch -p1 -i ../0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch
- patch -p1 -i ../0006-set-default-cubietruck-led-triggers.patch
- patch -p1 -i ../0007-exynos4412-odroid-set-higher-minimum-buck2-regulator.patch
- patch -p1 -i ../0008-ARM-dove-enable-ethernet-on-D3Plug.patch
- patch -p1 -i ../0009-media-s5p-mfc-fix-incorrect-bus-assignment-in-virtua.patch
- fi
-
# add freedo as boot logo
install -m644 -t drivers/video/logo \
../logo_linux_{clut224.ppm,vga16.ppm,mono.pbm}
- # add Arch patches
- patch -p1 -i ../0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
- patch -p1 -i ../0002-netfilter-nf_tables-fix-set-double-free-in-abort-pat.patch
-
- # maintain the TTY over USB disconnects
- # http://www.coreboot.org/EHCI_Gadget_Debug
- patch -p1 -i ../0001-usb-serial-gadget-no-TTY-hangup-on-USB-disconnect-WI.patch
-
- # fix Atmel maXTouch touchscreen support
- # https://labs.parabola.nu/issues/877
- # http://www.fsfla.org/pipermail/linux-libre/2015-November/003202.html
- patch -p1 -i ../0002-fix-Atmel-maXTouch-touchscreen-support.patch
-
msg2 "Setting version..."
scripts/setlocalversion --save-scmversion
echo "-$pkgrel" > localversion.10-pkgrel
echo "$_kernelname" > localversion.20-pkgname
+ if [ "$CARCH" = "armv7h" ]; then
+ # RCN patch (CM3 firmware deblobbed and AUFS/WireGuard removed)
+ # Note: For stability reasons, AUFS has been removed in the RCN patch.
+ # We are supporting AUFS in linux-libre-pck through PCK patch.
+ # See https://wiki.parabola.nu/PCK for further details.
+ local src_armv7h
+ for src_armv7h in "${source_armv7h[@]}"; do
+ src_armv7h="${src_armv7h%%::*}"
+ src_armv7h="${src_armv7h##*/}"
+ [[ $src_armv7h = *.patch ]] || continue
+ msg2 "Applying patch $src_armv7h..."
+ patch -Np1 < "../$src_armv7h"
+ done
+ fi
+
+ local src
+ for src in "${source[@]}"; do
+ src="${src%%::*}"
+ src="${src##*/}"
+ [[ $src = *.patch ]] || continue
+ msg2 "Applying patch $src..."
+ patch -Np1 < "../$src"
+ done
+
msg2 "Setting config..."
cp ../config.$CARCH .config
make olddefconfig