openwrt/target/linux/generic/hack-5.4/904-debloat_dma_buf.patch
Petr Štetiar 5ecc0cfd6f kernel: bump 5.4 to 5.4.28
Changelog since 5.4.24 mentions CVE-2019-19769, CVE-2020-8648,
CVE-2020-8649 and CVE-2020-8647.

Removed upstreamed:

 generic: 507-v5.6-iio-chemical-sps30-fix-missing-triggered-buffer-depe.patch
 generic: 600-ipv6-addrconf-call-ipv6_mc_up-for-non-Ethernet-inter.patch
 bcm27xx: 950-0435-ASoC-pcm512x-Fix-unbalanced-regulator-enable-call-in.patch
 ipq806x: 701-stmmac-fix-notifier-registration.patch
 lantiq: 002-pinctrl-falcon-fix-syntax-error.patch
 octeontx: 0002-net-thunderx-workaround-BGX-TX-Underflow-issue.patch

Run tested: apu2, qemu-x86-64, apalis, a64-olinuxino, nbg6617
Build tested: sunxi/a53, imx6, x86/64, ipq40xx

Tested-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> [apu2]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
2020-03-28 13:03:02 +01:00

75 lines
2.1 KiB
Diff

From e3692cb2fcd5ba1244512a0f43b8118f65f1c375 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 8 Jul 2017 08:20:43 +0200
Subject: debloat: dmabuf
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
drivers/base/Kconfig | 2 +-
drivers/dma-buf/Makefile | 10 +++++++---
drivers/dma-buf/dma-buf.c | 4 +++-
kernel/sched/core.c | 1 +
4 files changed, 12 insertions(+), 5 deletions(-)
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -179,7 +179,7 @@ config SOC_BUS
source "drivers/base/regmap/Kconfig"
config DMA_SHARED_BUFFER
- bool
+ tristate
default n
select IRQ_WORK
help
--- a/drivers/dma-buf/Makefile
+++ b/drivers/dma-buf/Makefile
@@ -1,9 +1,13 @@
# SPDX-License-Identifier: GPL-2.0-only
-obj-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
- dma-resv.o seqno-fence.o
-obj-$(CONFIG_SYNC_FILE) += sync_file.o
-obj-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o
-obj-$(CONFIG_UDMABUF) += udmabuf.o
+obj-$(CONFIG_DMA_SHARED_BUFFER) := dma-shared-buffer.o
+
+dma-buf-objs-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
+ dma-resv.o seqno-fence.o
+dma-buf-objs-$(CONFIG_SYNC_FILE) += sync_file.o
+dma-buf-objs-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o
+dma-buf-objs-$(CONFIG_UDMABUF) += udmabuf.o
+
+dma-shared-buffer-objs := $(dma-buf-objs-y)
dmabuf_selftests-y := \
selftest.o \
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -1298,4 +1298,5 @@ static void __exit dma_buf_deinit(void)
dma_buf_uninit_debugfs();
kern_unmount(dma_buf_mnt);
}
-__exitcall(dma_buf_deinit);
+module_exit(dma_buf_deinit);
+MODULE_LICENSE("GPL");
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2673,6 +2673,7 @@ int wake_up_state(struct task_struct *p,
{
return try_to_wake_up(p, state, 0);
}
+EXPORT_SYMBOL_GPL(wake_up_state);
/*
* Perform scheduler related setup for a newly forked process p.
--- a/fs/d_path.c
+++ b/fs/d_path.c
@@ -307,6 +307,7 @@ char *dynamic_dname(struct dentry *dentr
buffer += buflen - sz;
return memcpy(buffer, temp, sz);
}
+EXPORT_SYMBOL_GPL(dynamic_dname);
char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
{