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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
@@ -184,7 +184,7 @@ config SOC_BUS
source "drivers/base/regmap/Kconfig"
config DMA_SHARED_BUFFER
- bool
+ tristate
default n
select IRQ_WORK
help
--- a/drivers/dma-buf/heaps/Makefile
+++ b/drivers/dma-buf/heaps/Makefile
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
-obj-y += heap-helpers.o
-obj-$(CONFIG_DMABUF_HEAPS_SYSTEM) += system_heap.o
-obj-$(CONFIG_DMABUF_HEAPS_CMA) += cma_heap.o
+dma-buf-objs-y += heap-helpers.o
+dma-buf-objs-$(CONFIG_DMABUF_HEAPS_SYSTEM) += system_heap.o
+dma-buf-objs-$(CONFIG_DMABUF_HEAPS_CMA) += cma_heap.o
--- a/drivers/dma-buf/Makefile
+++ b/drivers/dma-buf/Makefile
@@ -1,15 +1,19 @@
# SPDX-License-Identifier: GPL-2.0-only
-obj-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
+obj-$(CONFIG_DMA_SHARED_BUFFER) := dma-shared-buffer.o
+
+dma-buf-objs-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
dma-resv.o seqno-fence.o
-obj-$(CONFIG_DMABUF_HEAPS) += dma-heap.o
-obj-$(CONFIG_DMABUF_HEAPS) += heaps/
-obj-$(CONFIG_SYNC_FILE) += sync_file.o
-obj-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o
-obj-$(CONFIG_UDMABUF) += udmabuf.o
+dma-buf-objs-$(CONFIG_DMABUF_HEAPS) += dma-heap.o
+obj-$(CONFIG_DMABUF_HEAPS) += heaps/
+dma-buf-objs-$(CONFIG_SYNC_FILE) += sync_file.o
+dma-buf-objs-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o
+dma-buf-objs-$(CONFIG_UDMABUF) += udmabuf.o
dmabuf_selftests-y := \
selftest.o \
st-dma-fence.o \
st-dma-fence-chain.o
-obj-$(CONFIG_DMABUF_SELFTESTS) += dmabuf_selftests.o
+dma-buf-objs-$(CONFIG_DMABUF_SELFTESTS) += dmabuf_selftests.o
+
+dma-shared-buffer-objs := $(dma-buf-objs-y)
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -1419,4 +1419,5 @@ 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
@@ -3074,6 +3074,7 @@ 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
@@ -311,6 +311,7 @@ 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)
{
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