Because trans_support be used when check i/o accelerator mode support
before its value assigned, it caused following build warning:
drivers/scsi/hpsa.c: In function ‘hpsa_init_one’:
drivers/scsi/hpsa.c:7468:20: warning: ‘trans_support’
may be used uninitialized in this function [-Wmaybe-uninitialized]
if (trans_support & CFGTBL_Trans_io_accel1) {
^
drivers/scsi/hpsa.c:7459:6: note: ‘trans_support’ was
declared here
u32 trans_support;
^
Signed-off-by: SeongJae Park <sj38.p...@gmail.com>
---
drivers/scsi/hpsa.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 8cf4a0c..a4ae873 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -7455,7 +7455,7 @@ clean_up:
static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h)
{
- u32 trans_support;
+ u32 trans_support = readl(&(h->cfgtable->TransportSupport));
unsigned long transMethod = CFGTBL_Trans_Performant |
CFGTBL_Trans_use_short_tags;
int i;
@@ -7479,7 +7479,6 @@ static void hpsa_put_ctlr_into_performant_mode(struct
ctlr_info *h)
}
/* TODO, check that this next line h->nreply_queues is correct */
- trans_support = readl(&(h->cfgtable->TransportSupport));
if (!(trans_support & PERFORMANT_MODE))
return;
--
1.8.3.2
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