904-debloat_dma_buf.patch 2.1 KB

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  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. @@ -179,7 +179,7 @@ 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. @@ -1,9 +1,13 @@
  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. - dma-resv.o seqno-fence.o
  28. -obj-$(CONFIG_SYNC_FILE) += sync_file.o
  29. -obj-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o
  30. -obj-$(CONFIG_UDMABUF) += udmabuf.o
  31. +obj-$(CONFIG_DMA_SHARED_BUFFER) := dma-shared-buffer.o
  32. +
  33. +dma-buf-objs-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
  34. + dma-resv.o seqno-fence.o
  35. +dma-buf-objs-$(CONFIG_SYNC_FILE) += sync_file.o
  36. +dma-buf-objs-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o
  37. +dma-buf-objs-$(CONFIG_UDMABUF) += udmabuf.o
  38. +
  39. +dma-shared-buffer-objs := $(dma-buf-objs-y)
  40. dmabuf_selftests-y := \
  41. selftest.o \
  42. --- a/drivers/dma-buf/dma-buf.c
  43. +++ b/drivers/dma-buf/dma-buf.c
  44. @@ -1313,4 +1313,5 @@ static void __exit dma_buf_deinit(void)
  45. dma_buf_uninit_debugfs();
  46. kern_unmount(dma_buf_mnt);
  47. }
  48. -__exitcall(dma_buf_deinit);
  49. +module_exit(dma_buf_deinit);
  50. +MODULE_LICENSE("GPL");
  51. --- a/kernel/sched/core.c
  52. +++ b/kernel/sched/core.c
  53. @@ -2767,6 +2767,7 @@ int wake_up_state(struct task_struct *p,
  54. {
  55. return try_to_wake_up(p, state, 0);
  56. }
  57. +EXPORT_SYMBOL_GPL(wake_up_state);
  58. /*
  59. * Perform scheduler related setup for a newly forked process p.
  60. --- a/fs/d_path.c
  61. +++ b/fs/d_path.c
  62. @@ -311,6 +311,7 @@ char *dynamic_dname(struct dentry *dentr
  63. buffer += buflen - sz;
  64. return memcpy(buffer, temp, sz);
  65. }
  66. +EXPORT_SYMBOL_GPL(dynamic_dname);
  67. char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
  68. {