author: Mark Rutland <mark.rutland@arm.com> 2017-10-23 14:07:29 -0700
committer: Ingo Molnar <mingo@kernel.org> 2017-10-25 11:01:08 +0200
commit: 6aa7de059173a986114ac43b8f50b297a86f09a8
parent: b03a0fe0c5e4b46dcd400d27395b124499554a71
Commit Summary:
Diffstat:
1 file changed, 4 insertions, 6 deletions
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index 8bf89267dc25..ccf52368a073 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -734,7 +734,7 @@ static unsigned int ar_search_last_active_buffer(struct ar_context *ctx,
__le16 res_count, next_res_count;
i = ar_first_buffer_index(ctx);
- res_count = ACCESS_ONCE(ctx->descriptors[i].res_count);
+ res_count = READ_ONCE(ctx->descriptors[i].res_count);
/* A buffer that is not yet completely filled must be the last one. */
while (i != last && res_count == 0) {
@@ -742,8 +742,7 @@ static unsigned int ar_search_last_active_buffer(struct ar_context *ctx,
/* Peek at the next descriptor. */
next_i = ar_next_buffer_index(i);
rmb(); /* read descriptors in order */
- next_res_count = ACCESS_ONCE(
- ctx->descriptors[next_i].res_count);
+ next_res_count = READ_ONCE(ctx->descriptors[next_i].res_count);
/*
* If the next descriptor is still empty, we must stop at this
* descriptor.
@@ -759,8 +758,7 @@ static unsigned int ar_search_last_active_buffer(struct ar_context *ctx,
if (MAX_AR_PACKET_SIZE > PAGE_SIZE && i != last) {
next_i = ar_next_buffer_index(next_i);
rmb();
- next_res_count = ACCESS_ONCE(
- ctx->descriptors[next_i].res_count);
+ next_res_count = READ_ONCE(ctx->descriptors[next_i].res_count);
if (next_res_count != cpu_to_le16(PAGE_SIZE))
goto next_buffer_is_active;
}
@@ -2812,7 +2810,7 @@ static int handle_ir_buffer_fill(struct context *context,
u32 buffer_dma;
req_count = le16_to_cpu(last->req_count);
- res_count = le16_to_cpu(ACCESS_ONCE(last->res_count));
+ res_count = le16_to_cpu(READ_ONCE(last->res_count));
completed = req_count - res_count;
buffer_dma = le32_to_cpu(last->data_address);