904-debloat_dma_buf.patch 2.4 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182
  1. From e3692cb2fcd5ba1244512a0f43b8118f65f1c375 Mon Sep 17 00:00:00 2001
  2. From: Felix Fietkau <[email protected]>
  3. Date: Sat, 8 Jul 2017 08:20:43 +0200
  4. Subject: debloat: dmabuf
  5. Signed-off-by: Felix Fietkau <[email protected]>
  6. ---
  7. drivers/base/Kconfig | 2 +-
  8. drivers/dma-buf/Makefile | 10 +++++++---
  9. drivers/dma-buf/dma-buf.c | 4 +++-
  10. kernel/sched/core.c | 1 +
  11. 4 files changed, 12 insertions(+), 5 deletions(-)
  12. --- a/drivers/base/Kconfig
  13. +++ b/drivers/base/Kconfig
  14. @@ -184,7 +184,7 @@ config SOC_BUS
  15. source "drivers/base/regmap/Kconfig"
  16. config DMA_SHARED_BUFFER
  17. - bool
  18. + tristate
  19. default n
  20. select IRQ_WORK
  21. help
  22. --- a/drivers/dma-buf/Makefile
  23. +++ b/drivers/dma-buf/Makefile
  24. @@ -1,15 +1,19 @@
  25. # SPDX-License-Identifier: GPL-2.0-only
  26. -obj-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
  27. +obj-$(CONFIG_DMA_SHARED_BUFFER) := dma-shared-buffer.o
  28. +
  29. +dma-buf-objs-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
  30. dma-resv.o seqno-fence.o
  31. -obj-$(CONFIG_DMABUF_HEAPS) += dma-heap.o
  32. -obj-$(CONFIG_DMABUF_HEAPS) += heaps/
  33. -obj-$(CONFIG_SYNC_FILE) += sync_file.o
  34. -obj-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o
  35. -obj-$(CONFIG_UDMABUF) += udmabuf.o
  36. +dma-buf-objs-$(CONFIG_DMABUF_HEAPS) += dma-heap.o
  37. +dma-buf-objs-$(CONFIG_DMABUF_HEAPS) += heaps/
  38. +dma-buf-objs-$(CONFIG_SYNC_FILE) += sync_file.o
  39. +dma-buf-objs-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o
  40. +dma-buf-objs-$(CONFIG_UDMABUF) += udmabuf.o
  41. dmabuf_selftests-y := \
  42. selftest.o \
  43. st-dma-fence.o \
  44. st-dma-fence-chain.o
  45. -obj-$(CONFIG_DMABUF_SELFTESTS) += dmabuf_selftests.o
  46. +dma-buf-objs-$(CONFIG_DMABUF_SELFTESTS) += dmabuf_selftests.o
  47. +
  48. +dma-shared-buffer-objs := $(dma-buf-objs-y)
  49. --- a/drivers/dma-buf/dma-buf.c
  50. +++ b/drivers/dma-buf/dma-buf.c
  51. @@ -1418,4 +1418,5 @@ static void __exit dma_buf_deinit(void)
  52. dma_buf_uninit_debugfs();
  53. kern_unmount(dma_buf_mnt);
  54. }
  55. -__exitcall(dma_buf_deinit);
  56. +module_exit(dma_buf_deinit);
  57. +MODULE_LICENSE("GPL");
  58. --- a/kernel/sched/core.c
  59. +++ b/kernel/sched/core.c
  60. @@ -3054,6 +3054,7 @@ int wake_up_state(struct task_struct *p,
  61. {
  62. return try_to_wake_up(p, state, 0);
  63. }
  64. +EXPORT_SYMBOL_GPL(wake_up_state);
  65. /*
  66. * Perform scheduler related setup for a newly forked process p.
  67. --- a/fs/d_path.c
  68. +++ b/fs/d_path.c
  69. @@ -311,6 +311,7 @@ char *dynamic_dname(struct dentry *dentr
  70. buffer += buflen - sz;
  71. return memcpy(buffer, temp, sz);
  72. }
  73. +EXPORT_SYMBOL_GPL(dynamic_dname);
  74. char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
  75. {