x86/platform/uv/BAU: Minor cleanup, make some local functions static

The 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@canonical.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mike Travis <mike.travis@hpe.com>
Cc: Andrew Banman <abanman@hpe.com>
Cc: kernel-janitors@vger.kernel.org
Cc: Dimitri Sivanich <sivanich@sgi.com>
Cc: Dou Liyang <douly.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/20170704083129.10559-1-colin.king@canonical.com

diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 2983faab5b1849fab7be7caf93a5f66a70c5f601..d4a61ddf9e6220e3bc1ff4c996e5f9441fb7edd8 100644 (file)
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -587,32 +587,12 @@ static unsigned long uv2_3_read_status(unsigned long offset, int rshft, int desc
        return ((read_lmmr(offset) >> rshft) & UV_ACT_STATUS_MASK) << 1;
 }
 
-/*
- * 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;
 
@@ -917,8 +897,9 @@ 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,
-       struct bau_desc *bau_desc)
+static int uv_flush_send_and_wait(struct cpumask *flush_mask,
+                                 struct bau_control *bcp,
+                                 struct bau_desc *bau_desc)
 {
        int seq_number = 0;
        int completion_stat = 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;