[PATCH][V2] x86/platform/uv/BAU: minor cleanup, make some local functions static

From: Colin King
Date: Tue Jul 04 2017 - 04:32:00 EST


From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Functions handle_uv2_busy, uv_flush_send_and_wait and
find_another_by_swack are local to the source, so make them static.
Also remove normal_busy as it is no longer used.

Fixes various smatch warnings, such as:
"symbol 'find_another_by_swack' was not declared. Should it be static?"
"symbol 'handle_uv2_busy' was not declared. Should it be static?"

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
arch/x86/platform/uv/tlb_uv.c | 29 +++++------------------------
1 file changed, 5 insertions(+), 24 deletions(-)

diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 2983faab5b18..e21420843641 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -588,31 +588,11 @@ static unsigned long uv2_3_read_status(unsigned long offset, int rshft, int desc
}

/*
- * Return whether the status of the descriptor that is normally used for this
- * cpu (the one indexed by its hub-relative cpu number) is busy.
- * The status of the original 32 descriptors is always reflected in the 64
- * bits of UVH_LB_BAU_SB_ACTIVATION_STATUS_0.
- * The bit provided by the activation_status_2 register is irrelevant to
- * the status if it is only being tested for busy or not busy.
- */
-int normal_busy(struct bau_control *bcp)
-{
- int cpu = bcp->uvhub_cpu;
- int mmr_offset;
- int right_shift;
-
- mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_0;
- right_shift = cpu * UV_ACT_STATUS_SIZE;
- return (((((read_lmmr(mmr_offset) >> right_shift) &
- UV_ACT_STATUS_MASK)) << 1) == UV2H_DESC_BUSY);
-}
-
-/*
* Entered when a bau descriptor has gone into a permanent busy wait because
* of a hardware bug.
* Workaround the bug.
*/
-int handle_uv2_busy(struct bau_control *bcp)
+static int handle_uv2_busy(struct bau_control *bcp)
{
struct ptc_stats *stat = bcp->statp;

@@ -917,7 +897,8 @@ static void handle_cmplt(int completion_status, struct bau_desc *bau_desc,
* Returns 1 if it gives up entirely and the original cpu mask is to be
* returned to the kernel.
*/
-int uv_flush_send_and_wait(struct cpumask *flush_mask, struct bau_control *bcp,
+static int uv_flush_send_and_wait(struct cpumask *flush_mask,
+ struct bau_control *bcp,
struct bau_desc *bau_desc)
{
int seq_number = 0;
@@ -1212,8 +1193,8 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
* Search the message queue for any 'other' unprocessed message with the
* same software acknowledge resource bit vector as the 'msg' message.
*/
-struct bau_pq_entry *find_another_by_swack(struct bau_pq_entry *msg,
- struct bau_control *bcp)
+static struct bau_pq_entry *find_another_by_swack(struct bau_pq_entry *msg,
+ struct bau_control *bcp)
{
struct bau_pq_entry *msg_next = msg + 1;
unsigned char swack_vec = msg->swack_vec;
--
2.11.0