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

From: Dou Liyang
Date: Mon Jul 03 2017 - 23:49:57 EST

Hi Colin,

At 07/03/2017 10:22 PM, Colin King wrote:
From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Functions normal_busy, handle_uv2_busy, uv_flush_send_and_wait and
find_another_by_swack are local to the source, so make them static

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 | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 2983faab5b18..730b47dce402 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -595,7 +595,7 @@ static unsigned long uv2_3_read_status(unsigned long offset, int rshft, int desc
* 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)
+static int normal_busy(struct bau_control *bcp)

In my opinion, there is no need to mark *normal_busy* static, remove it

the commit c5d35d399e68(x86/UV2: Work around BAU bug) add it to
handle_uv2_busy(), but the handle_uv2_busy() is rewritten now. the
normal_busy is unused, can be remove.

By the way, there are also an other function named
uv_bau_message_interrupt() can be remove.



int cpu = bcp->uvhub_cpu;
int mmr_offset;
@@ -612,7 +612,7 @@ int normal_busy(struct bau_control *bcp)
* 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 +917,8 @@ 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 +1213,8 @@ 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;