mirror of https://gitee.com/openkylin/linux.git
57d88cffc8
Building qp.o triggers this gcc warning:
drivers/infiniband/hw/mlx4/qp.c: In function ‘mlx4_ib_post_send’:
drivers/infiniband/hw/mlx4/qp.c:1862:62: warning: ‘vlan’ may be used uninitialized in this function [-Wmaybe-uninitialized]
drivers/infiniband/hw/mlx4/qp.c:1752:6: note: ‘vlan’ was declared here
Looking at the code it is clear 'vlan' is only set and used if 'is_eth'
is non-zero. But by initializing 'vlan' to 0xffff, on
gcc (Ubuntu 4.7.2-22ubuntu1) 4.7.2
on x86-64 at least, we fix the warning, and the compiler was already
setting 'vlan' to 0 in the generated code, so there's no real downside.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
[ Get rid of unnecessary move of 'is_vlan' initialization. - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| ah.c | ||
| alias_GUID.c | ||
| cm.c | ||
| cq.c | ||
| doorbell.c | ||
| mad.c | ||
| main.c | ||
| mcg.c | ||
| mlx4_ib.h | ||
| mr.c | ||
| qp.c | ||
| srq.c | ||
| sysfs.c | ||
| user.h | ||