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authorHauke Mehrtens <hauke@hauke-m.de>2017-10-29 19:32:10 +0100
committerHauke Mehrtens <hauke@hauke-m.de>2017-12-16 22:11:19 +0100
commitb3f95490b9bec020314eb32016988ee262d52884 (patch)
treef8289c19587108bb3b687575776f559eee6f01fd /target/linux/generic/pending-4.14/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch
parenta362df6f253e4460504fd870d6a7af40ef86ad70 (diff)
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kernel: generic: Add kernel 4.14 support
This adds initial support for kernel 4.14 based on the patches for kernel 4.9. In the configuration I deactivated some of the new possible security features like: CONFIG_REFCOUNT_FULL CONFIG_SLAB_FREELIST_HARDENED CONFIG_SOFTLOCKUP_DETECTOR CONFIG_WARN_ALL_UNSEEDED_RANDOM And these overlay FS options are also deactivated: CONFIG_OVERLAY_FS_INDEX CONFIG_OVERLAY_FS_REDIRECT_DIR I activated this: CONFIG_FORTIFY_SOURCE CONFIG_POSIX_TIMERS CONFIG_SLAB_MERGE_DEFAULT CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED I am not sure if I did the porting correct for the following patches: target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch target/linux/generic/hack-4.14/220-gc_sections.patch target/linux/generic/hack-4.14/321-powerpc_crtsavres_prereq.patch target/linux/generic/pending-4.14/305-mips_module_reloc.patch target/linux/generic/pending-4.14/611-netfilter_match_bypass_default_table.patch target/linux/generic/pending-4.14/680-NET-skip-GRO-for-foreign-MAC-addresses.patch Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Diffstat (limited to 'target/linux/generic/pending-4.14/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch')
-rw-r--r--target/linux/generic/pending-4.14/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch25
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/generic/pending-4.14/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch b/target/linux/generic/pending-4.14/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch
new file mode 100644
index 0000000000..41f9d31cb0
--- /dev/null
+++ b/target/linux/generic/pending-4.14/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch
@@ -0,0 +1,25 @@
+From: Felix Fietkau <nbd@nbd.name>
+Subject: kernel: disable cfi cmdset 0002 erase suspend
+
+on some platforms, erase suspend leads to data corruption and lockups when write
+ops collide with erase ops. this has been observed on the buffalo wzr-hp-g300nh.
+rather than play whack-a-mole with a hard to reproduce issue on a variety of devices,
+simply disable erase suspend, as it will usually not produce any useful gain on
+the small filesystems used on embedded hardware.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ drivers/mtd/chips/cfi_cmdset_0002.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/mtd/chips/cfi_cmdset_0002.c
++++ b/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -811,7 +811,7 @@ static int get_chip(struct map_info *map
+ return 0;
+
+ case FL_ERASING:
+- if (!cfip || !(cfip->EraseSuspend & (0x1|0x2)) ||
++ if (1 /* no suspend */ || !cfip || !(cfip->EraseSuspend & (0x1|0x2)) ||
+ !(mode == FL_READY || mode == FL_POINT ||
+ (mode == FL_WRITING && (cfip->EraseSuspend & 0x2))))
+ goto sleep;