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| author |   Alexander Lobakin <alobakin@marvell.com> | 2020-06-23 16:51:37 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-06-23 15:01:16 -0700 |
| commit | 10f468ea5c481b3a60cc291c4dfdc7bb338abb74 (patch) | |
| tree | a1964cede0de107f0ece102218c3ceeb0c80639b | |
| parent | net: qed: reset ILT block sizes before recomputing to fix crashes (diff) | |
| download | wireguard-linux-10f468ea5c481b3a60cc291c4dfdc7bb338abb74.tar.xz wireguard-linux-10f468ea5c481b3a60cc291c4dfdc7bb338abb74.zip | |
net: qed: fix "maybe uninitialized" warning
Variable 'abs_ppfid' in qed_dev.c:qed_llh_add_mac_filter() always gets
printed, but is initialized only under 'ref_cnt == 1' condition. This
results in:
In file included from ./include/linux/kernel.h:15:0,
from ./include/asm-generic/bug.h:19,
from ./arch/x86/include/asm/bug.h:86,
from ./include/linux/bug.h:5,
from ./include/linux/io.h:11,
from drivers/net/ethernet/qlogic/qed/qed_dev.c:35:
drivers/net/ethernet/qlogic/qed/qed_dev.c: In function 'qed_llh_add_mac_filter':
./include/linux/printk.h:358:2: warning: 'abs_ppfid' may be used uninitialized
in this function [-Wmaybe-uninitialized]
printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
^~~~~~
drivers/net/ethernet/qlogic/qed/qed_dev.c:983:17: note: 'abs_ppfid' was declared
here
u8 filter_idx, abs_ppfid;
^~~~~~~~~
...under W=1+.
Fix this by initializing it with zero.
Fixes: 79284adeb99e ("qed: Add llh ppfid interface and 100g support for offload protocols")
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_dev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c index b41ada668948..3aa51374e727 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dev.c +++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c @@ -980,7 +980,7 @@ int qed_llh_add_mac_filter(struct qed_dev *cdev, struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev); struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn); union qed_llh_filter filter = {}; - u8 filter_idx, abs_ppfid; + u8 filter_idx, abs_ppfid = 0; u32 high, low, ref_cnt; int rc = 0; |