target/linux/generic/hack-6.1/904-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 @@ -198,7 +198,7 @@ config SOC_BUS
  17  source "drivers/base/regmap/Kconfig"
  18
  19  config DMA_SHARED_BUFFER
  20 -       bool
  21 +       tristate
  22         default n
  23         select IRQ_WORK
  24         help
  25 --- a/drivers/dma-buf/heaps/Makefile
  26 +++ b/drivers/dma-buf/heaps/Makefile
  27 @@ -1,3 +1,3 @@
  28  # SPDX-License-Identifier: GPL-2.0
  29 -obj-$(CONFIG_DMABUF_HEAPS_SYSTEM)      += system_heap.o
  30 -obj-$(CONFIG_DMABUF_HEAPS_CMA)         += cma_heap.o
  31 +dma-buf-objs-$(CONFIG_DMABUF_HEAPS_SYSTEM)     += system_heap.o
  32 +dma-buf-objs-$(CONFIG_DMABUF_HEAPS_CMA)                += cma_heap.o
  33 --- a/drivers/dma-buf/Makefile
  34 +++ b/drivers/dma-buf/Makefile
  35 @@ -1,12 +1,14 @@
  36  # SPDX-License-Identifier: GPL-2.0-only
  37 -obj-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
  38 +obj-$(CONFIG_DMA_SHARED_BUFFER) := dma-shared-buffer.o
  39 +
  40 +dma-buf-objs-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
  41          dma-fence-unwrap.o dma-resv.o
  42 -obj-$(CONFIG_DMABUF_HEAPS)     += dma-heap.o
  43 -obj-$(CONFIG_DMABUF_HEAPS)     += heaps/
  44 -obj-$(CONFIG_SYNC_FILE)                += sync_file.o
  45 -obj-$(CONFIG_SW_SYNC)          += sw_sync.o sync_debug.o
  46 -obj-$(CONFIG_UDMABUF)          += udmabuf.o
  47 -obj-$(CONFIG_DMABUF_SYSFS_STATS) += dma-buf-sysfs-stats.o
  48 +dma-buf-objs-$(CONFIG_DMABUF_HEAPS)    += dma-heap.o
  49 +obj-$(CONFIG_DMABUF_HEAPS)             += heaps/
  50 +dma-buf-objs-$(CONFIG_SYNC_FILE)       += sync_file.o
  51 +dma-buf-objs-$(CONFIG_SW_SYNC)         += sw_sync.o sync_debug.o
  52 +dma-buf-objs-$(CONFIG_UDMABUF)         += udmabuf.o
  53 +dma-buf-objs-$(CONFIG_DMABUF_SYSFS_STATS) += dma-buf-sysfs-stats.o
  54
  55  dmabuf_selftests-y := \
  56         selftest.o \
  57 @@ -15,4 +17,6 @@ dmabuf_selftests-y := \
  58         st-dma-fence-unwrap.o \
  59         st-dma-resv.o
  60
  61 -obj-$(CONFIG_DMABUF_SELFTESTS) += dmabuf_selftests.o
  62 +dma-buf-objs-$(CONFIG_DMABUF_SELFTESTS)        += dmabuf_selftests.o
  63 +
  64 +dma-shared-buffer-objs :=  $(dma-buf-objs-y)
  65 --- a/drivers/dma-buf/dma-buf.c
  66 +++ b/drivers/dma-buf/dma-buf.c
  67 @@ -1636,4 +1636,5 @@ static void __exit dma_buf_deinit(void)
  68         kern_unmount(dma_buf_mnt);
  69         dma_buf_uninit_sysfs_statistics();
  70  }
  71 -__exitcall(dma_buf_deinit);
  72 +module_exit(dma_buf_deinit);
  73 +MODULE_LICENSE("GPL");
  74 --- a/kernel/sched/core.c
  75 +++ b/kernel/sched/core.c
  76 @@ -4367,6 +4367,7 @@ int wake_up_state(struct task_struct *p,
  77  {
  78         return try_to_wake_up(p, state, 0);
  79  }
  80 +EXPORT_SYMBOL_GPL(wake_up_state);
  81
  82  /*
  83   * Perform scheduler related setup for a newly forked process p.
  84 --- a/fs/d_path.c
  85 +++ b/fs/d_path.c
  86 @@ -313,6 +313,7 @@ char *dynamic_dname(char *buffer, int bu
  87         buffer += buflen - sz;
  88         return memcpy(buffer, temp, sz);
  89  }
  90 +EXPORT_SYMBOL_GPL(dynamic_dname);
  91
  92  char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
  93  {