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net: use 32-bit arithmetic while allocating net device

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Private part of allocation is never big enough to warrant size_t.

Space savings:

	add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-10 (-10)
	function                                     old     new   delta
	alloc_netdev_mqs                            1120    1110     -10

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexey Dobriyan 2017-09-21 23:33:29 +03:00 committed by David S. Miller
parent 242c1a28eb
commit 52a59bd509
1 changed files with 1 additions and 1 deletions
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2
net/core/dev.c
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@ -7989,7 +7989,7 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
unsigned int txqs, unsigned int rxqs)
{
struct net_device *dev;
size_t alloc_size;
unsigned int alloc_size;
struct net_device *p;
BUG_ON(strlen(name) >= sizeof(dev->name));