git: 849391886815 - main - busdma: Remove outdated comments about Giant.

The branch main has been updated by mav:

URL: https://cgit.FreeBSD.org/src/commit/?id=8493918868151d3d000fa11c0feb635c51702c95

commit 8493918868151d3d000fa11c0feb635c51702c95
Author:     Alexander Motin <mav@FreeBSD.org>
AuthorDate: 2021-12-10 03:17:54 +0000
Commit:     Alexander Motin <mav@FreeBSD.org>
CommitDate: 2021-12-10 03:18:53 +0000

    busdma: Remove outdated comments about Giant.
    
    MFC after:      2 weeks
---
 sys/arm/arm/busdma_machdep.c         | 4 +---
 sys/arm64/arm64/busdma_machdep.c     | 4 +---
 sys/mips/mips/busdma_machdep.c       | 4 +---
 sys/powerpc/powerpc/busdma_machdep.c | 4 +---
 sys/riscv/riscv/busdma_machdep.c     | 4 +---
 sys/x86/x86/busdma_machdep.c         | 4 +---
 6 files changed, 6 insertions(+), 18 deletions(-)

diff --git a/sys/arm/arm/busdma_machdep.c b/sys/arm/arm/busdma_machdep.c
index 8a06e7245cd9..caa9ae43834e 100644
--- a/sys/arm/arm/busdma_machdep.c
+++ b/sys/arm/arm/busdma_machdep.c
@@ -419,9 +419,7 @@ must_bounce(bus_dma_tag_t dmat, bus_dmamap_t map, bus_addr_t paddr,
 
 /*
  * Convenience function for manipulating driver locks from busdma (during
- * busdma_swi, for example).  Drivers that don't provide their own locks
- * should specify &Giant to dmat->lockfuncarg.  Drivers that use their own
- * non-mutex locking scheme don't have to use this at all.
+ * busdma_swi, for example).
  */
 void
 busdma_lock_mutex(void *arg, bus_dma_lock_op_t op)
diff --git a/sys/arm64/arm64/busdma_machdep.c b/sys/arm64/arm64/busdma_machdep.c
index a4c6d2065584..5d42d4e58c22 100644
--- a/sys/arm64/arm64/busdma_machdep.c
+++ b/sys/arm64/arm64/busdma_machdep.c
@@ -53,9 +53,7 @@ __FBSDID("$FreeBSD$");
 
 /*
  * Convenience function for manipulating driver locks from busdma (during
- * busdma_swi, for example).  Drivers that don't provide their own locks
- * should specify &Giant to dmat->lockfuncarg.  Drivers that use their own
- * non-mutex locking scheme don't have to use this at all.
+ * busdma_swi, for example).
  */
 void
 busdma_lock_mutex(void *arg, bus_dma_lock_op_t op)
diff --git a/sys/mips/mips/busdma_machdep.c b/sys/mips/mips/busdma_machdep.c
index c707af167ab6..80e57cd0414f 100644
--- a/sys/mips/mips/busdma_machdep.c
+++ b/sys/mips/mips/busdma_machdep.c
@@ -298,9 +298,7 @@ _bus_dma_can_bounce(vm_offset_t lowaddr, vm_offset_t highaddr)
 
 /*
  * Convenience function for manipulating driver locks from busdma (during
- * busdma_swi, for example).  Drivers that don't provide their own locks
- * should specify &Giant to dmat->lockfuncarg.  Drivers that use their own
- * non-mutex locking scheme don't have to use this at all.
+ * busdma_swi, for example).
  */
 void
 busdma_lock_mutex(void *arg, bus_dma_lock_op_t op)
diff --git a/sys/powerpc/powerpc/busdma_machdep.c b/sys/powerpc/powerpc/busdma_machdep.c
index 94f5f5015019..d513b7e65538 100644
--- a/sys/powerpc/powerpc/busdma_machdep.c
+++ b/sys/powerpc/powerpc/busdma_machdep.c
@@ -186,9 +186,7 @@ run_filter(bus_dma_tag_t dmat, bus_addr_t paddr)
 
 /*
  * Convenience function for manipulating driver locks from busdma (during
- * busdma_swi, for example).  Drivers that don't provide their own locks
- * should specify &Giant to dmat->lockfuncarg.  Drivers that use their own
- * non-mutex locking scheme don't have to use this at all.
+ * busdma_swi, for example).
  */
 void
 busdma_lock_mutex(void *arg, bus_dma_lock_op_t op)
diff --git a/sys/riscv/riscv/busdma_machdep.c b/sys/riscv/riscv/busdma_machdep.c
index 7b1c3027badb..f510a3c437d0 100644
--- a/sys/riscv/riscv/busdma_machdep.c
+++ b/sys/riscv/riscv/busdma_machdep.c
@@ -53,9 +53,7 @@ __FBSDID("$FreeBSD$");
 
 /*
  * Convenience function for manipulating driver locks from busdma (during
- * busdma_swi, for example).  Drivers that don't provide their own locks
- * should specify &Giant to dmat->lockfuncarg.  Drivers that use their own
- * non-mutex locking scheme don't have to use this at all.
+ * busdma_swi, for example).
  */
 void
 busdma_lock_mutex(void *arg, bus_dma_lock_op_t op)
diff --git a/sys/x86/x86/busdma_machdep.c b/sys/x86/x86/busdma_machdep.c
index d0f0526a75c7..d07cad21c475 100644
--- a/sys/x86/x86/busdma_machdep.c
+++ b/sys/x86/x86/busdma_machdep.c
@@ -57,9 +57,7 @@ __FBSDID("$FreeBSD$");
 
 /*
  * Convenience function for manipulating driver locks from busdma (during
- * busdma_swi, for example).  Drivers that don't provide their own locks
- * should specify &Giant to dmat->lockfuncarg.  Drivers that use their own
- * non-mutex locking scheme don't have to use this at all.
+ * busdma_swi, for example).
  */
 void
 busdma_lock_mutex(void *arg, bus_dma_lock_op_t op)