@@ -1921,7 +1921,7 @@ static int ehca_set_pagebuf_user2(struct ehca_mr_pginfo *pginfo,
u64 *kpage)
{
int ret = 0;
- u64 pgaddr, prev_pgaddr;
+ u64 pgaddr, prev_pgaddr = 0;
u32 j = 0;
int kpages_per_hwpage = pginfo->hwpage_size / PAGE_SIZE;
int nr_kpages = kpages_per_hwpage;
@@ -2417,6 +2417,7 @@ static int ehca_reg_bmap_mr_rpages(struct ehca_shca *shca,
ehca_err(&shca->ib_device, "kpage alloc failed");
return -ENOMEM;
}
+ hret = H_SUCCESS;
for (top = 0; top < EHCA_MAP_ENTRIES; top++) {
if (!ehca_bmap_valid(ehca_bmap->top[top]))
continue;
The driver causes two warnings about possibly uninitialized variables: drivers/infiniband/hw/ehca/ehca_mrmw.c: In function 'ehca_set_pagebuf': drivers/infiniband/hw/ehca/ehca_mrmw.c:1908:4: warning: 'prev_pgaddr' may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/infiniband/hw/ehca/ehca_mrmw.c:1924:14: note: 'prev_pgaddr' was declared here drivers/infiniband/hw/ehca/ehca_mrmw.c: In function 'ehca_reg_mr': drivers/infiniband/hw/ehca/ehca_mrmw.c:2430:5: warning: 'hret' may be used uninitialized in this function [-Wmaybe-uninitialized] The first one is definitely a false positive, the second one may or may not be one. In both cases, adding an intialization is the safe and easy workaround. The driver was removed in mainline in commit e581d111dad3 ("staging/rdma: remove deprecated ehca driver"), in linux-4.6. In 4.4, the file is located in drivers/staging/rdma/ehca/ehca_mrmw.c, and the fix still applies. Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- drivers/infiniband/hw/ehca/ehca_mrmw.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 2.9.0