target/linux/generic/hack-4.9/904-debloat_dma_buf.patch

   1 From e3692cb2fcd5ba1244512a0f43b8118f65f1c375 Mon Sep 17 00:00:00 2001
   2 From: Felix Fietkau <nbd@nbd.name>
   3 Date: Sat, 8 Jul 2017 08:20:43 +0200
   4 Subject: debloat: dmabuf
   5
   6 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   7 ---
   8  drivers/base/Kconfig      |  2 +-
   9  drivers/dma-buf/Makefile  | 10 +++++++---
  10  drivers/dma-buf/dma-buf.c |  4 +++-
  11  kernel/sched/core.c       |  1 +
  12  4 files changed, 12 insertions(+), 5 deletions(-)
  13
  14 --- a/drivers/base/Kconfig
  15 +++ b/drivers/base/Kconfig
  16 @@ -241,7 +241,7 @@ config SOC_BUS
  17  source "drivers/base/regmap/Kconfig"
  18
  19  config DMA_SHARED_BUFFER
  20 -       bool
  21 +       tristate
  22         default n
  23         select ANON_INODES
  24         help
  25 --- a/drivers/dma-buf/Makefile
  26 +++ b/drivers/dma-buf/Makefile
  27 @@ -1,3 +1,7 @@
  28 -obj-y := dma-buf.o fence.o reservation.o seqno-fence.o fence-array.o
  29 -obj-$(CONFIG_SYNC_FILE)                += sync_file.o
  30 -obj-$(CONFIG_SW_SYNC)          += sw_sync.o sync_debug.o
  31 +obj-$(CONFIG_DMA_SHARED_BUFFER) := dma-shared-buffer.o
  32 +
  33 +dma-buf-objs-y := dma-buf.o fence.o reservation.o seqno-fence.o fence-array.o
  34 +dma-buf-objs-$(CONFIG_SYNC_FILE)               += sync_file.o
  35 +dma-buf-objs-$(CONFIG_SW_SYNC)         += sw_sync.o sync_debug.o
  36 +
  37 +dma-shared-buffer-objs :=  $(dma-buf-objs-y)
  38 --- a/drivers/dma-buf/dma-buf.c
  39 +++ b/drivers/dma-buf/dma-buf.c
  40 @@ -34,6 +34,7 @@
  41  #include <linux/poll.h>
  42  #include <linux/reservation.h>
  43  #include <linux/mm.h>
  44 +#include <linux/module.h>
  45
  46  #include <uapi/linux/dma-buf.h>
  47
  48 @@ -977,4 +978,5 @@ static void __exit dma_buf_deinit(void)
  49  {
  50         dma_buf_uninit_debugfs();
  51  }
  52 -__exitcall(dma_buf_deinit);
  53 +module_exit(dma_buf_deinit);
  54 +MODULE_LICENSE("GPL");
  55 --- a/kernel/sched/core.c
  56 +++ b/kernel/sched/core.c
  57 @@ -2170,6 +2170,7 @@ int wake_up_state(struct task_struct *p,
  58  {
  59         return try_to_wake_up(p, state, 0);
  60  }
  61 +EXPORT_SYMBOL_GPL(wake_up_state);
  62
  63  /*
  64   * This function clears the sched_dl_entity static params.