linux/drivers/net
Jacob Keller 1eb43fc754 ice: Use order_base_2 to calculate higher power of 2
Currently, we use a combination of ilog2 and is_power_of_2() to
calculate the next power of 2 for the qcount. This appears to be causing
a warning on some combinations of GCC and the Linux kernel:

MODPOST 1 modules
WARNING: "____ilog2_NaN" [ice.ko] undefined!

This appears to because because GCC realizes that qcount could be zero
in some circumstances and thus attempts to link against the
intentionally undefined ___ilog2_NaN function.

The order_base_2 function is intentionally defined to return 0 when
passed 0 as an argument, and thus will be safe to use here.

This not only fixes the warning but makes the resulting code slightly
cleaner, and is really what we should have used originally.

Also update the comment to make it more clear that we are rounding up,
not just incrementing the ilog2 of qcount unconditionally.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-23 09:56:28 -07:00
..
appletalk
arcnet
bonding Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2018-08-02 10:55:32 -07:00
caif
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
dsa net: dsa: add support for ksz9897 ethernet switch 2018-08-16 12:24:55 -07:00
ethernet ice: Use order_base_2 to calculate higher power of 2 2018-08-23 09:56:28 -07:00
fddi
fjes
hamradio
hippi
hyperv hv_netvsc: ignore devices that are not PCI 2018-08-21 12:02:11 -07:00
ieee802154 ieee802154: hwsim: using right kind of iteration 2018-08-14 09:58:57 -07:00
ipvlan
netdevsim Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2018-08-02 10:55:32 -07:00
phy net: dp83640: Mark expected switch fall-throughs 2018-08-11 11:28:34 -07:00
plip
ppp ppp: mppe: Remove VLA usage 2018-08-03 12:54:54 -07:00
slip
team team: Publish team_port_get_rcu() 2018-07-11 23:10:19 -07:00
usb r8152: disable RX aggregation on new Dell TB16 dock 2018-08-20 13:03:29 -07:00
vmxnet3
wan Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2018-08-05 13:04:31 -07:00
wimax wimax: usb-tx: mark expected switch fall-through 2018-08-11 11:29:36 -07:00
wireless Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00
xen-netback xen-netback: use true and false for boolean values 2018-08-02 14:43:04 -07:00
dummy.c
eql.c
geneve.c
gtp.c gtp: constify nla_policy 2018-07-20 12:33:37 -07:00
ifb.c
Kconfig
LICENSE.SRC
loopback.c
macsec.c
macvlan.c macvlan: Change status when lower device goes down 2018-07-11 23:07:22 -07:00
macvtap.c
Makefile
mdio.c
mii.c
net_failover.c failover: change mtu has RTNL 2018-07-29 12:57:26 -07:00
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c
tap.c
thunderbolt.c
tun.c tun: not use hardcoded mask value 2018-08-04 13:15:11 -07:00
veth.c veth: Free queues on link delete 2018-08-16 12:22:31 -07:00
virtio_net.c virtio_net: remove duplicated include from virtio_net.c 2018-08-13 09:21:05 -07:00
vrf.c
vsockmon.c
vxlan.c vxlan: fix default fdb entry netlink notify ordering during netdev create 2018-07-22 10:52:37 -07:00
xen-netfront.c xen-netfront: fix warn message as irq device name has '/' 2018-08-14 10:10:35 -07:00