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 diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
  15 index d02e7c0f5bfd..e1c0e2e0d3a8 100644
  16 --- a/drivers/base/Kconfig
  17 +++ b/drivers/base/Kconfig
  18 @@ -241,7 +241,7 @@ config SOC_BUS
  19  source "drivers/base/regmap/Kconfig"
  20
  21  config DMA_SHARED_BUFFER
  22 -       bool
  23 +       tristate
  24         default n
  25         select ANON_INODES
  26         help
  27 diff --git a/drivers/dma-buf/Makefile b/drivers/dma-buf/Makefile
  28 index 210a10bfad2b..36ee68dcdffe 100644
  29 --- a/drivers/dma-buf/Makefile
  30 +++ b/drivers/dma-buf/Makefile
  31 @@ -1,3 +1,7 @@
  32 -obj-y := dma-buf.o fence.o reservation.o seqno-fence.o fence-array.o
  33 -obj-$(CONFIG_SYNC_FILE)                += sync_file.o
  34 -obj-$(CONFIG_SW_SYNC)          += sw_sync.o sync_debug.o
  35 +obj-$(CONFIG_DMA_SHARED_BUFFER) := dma-shared-buffer.o
  36 +
  37 +dma-buf-objs-y := dma-buf.o fence.o reservation.o seqno-fence.o fence-array.o
  38 +dma-buf-objs-$(CONFIG_SYNC_FILE)               += sync_file.o
  39 +dma-buf-objs-$(CONFIG_SW_SYNC)         += sw_sync.o sync_debug.o
  40 +
  41 +dma-shared-buffer-objs :=  $(dma-buf-objs-y)
  42 diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
  43 index 6b54e02da10c..24e69ef1f243 100644
  44 --- a/drivers/dma-buf/dma-buf.c
  45 +++ b/drivers/dma-buf/dma-buf.c
  46 @@ -34,6 +34,7 @@
  47  #include <linux/poll.h>
  48  #include <linux/reservation.h>
  49  #include <linux/mm.h>
  50 +#include <linux/module.h>
  51
  52  #include <uapi/linux/dma-buf.h>
  53
  54 @@ -977,4 +978,5 @@ static void __exit dma_buf_deinit(void)
  55  {
  56         dma_buf_uninit_debugfs();
  57  }
  58 -__exitcall(dma_buf_deinit);
  59 +module_exit(dma_buf_deinit);
  60 +MODULE_LICENSE("GPL");
  61 diff --git a/kernel/sched/core.c b/kernel/sched/core.c
  62 index 692c948ae333..eaf379285cca 100644
  63 --- a/kernel/sched/core.c
  64 +++ b/kernel/sched/core.c
  65 @@ -2170,6 +2170,7 @@ int wake_up_state(struct task_struct *p, unsigned int state)
  66  {
  67         return try_to_wake_up(p, state, 0);
  68  }
  69 +EXPORT_SYMBOL_GPL(wake_up_state);
  70
  71  /*
  72   * This function clears the sched_dl_entity static params.
  73 --
  74 2.11.0
  75