korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-17 07:54:54 +08:00
Code Issues Packages Projects Releases Wiki Activity

IB/qib: Use struct_size() helper

Browse Source 
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes, in particular in the
context in which this code is being used.

So, replace the following form:

sizeof(*pkt) + sizeof(pkt->addr[0])*n

with:

struct_size(pkt, addr, n)

Also, notice that variable size is unnecessary, hence it is removed.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Gustavo A. R. Silva 2019-05-29 10:13:26 -05:00 committed by Jason Gunthorpe
parent 34755f5961
commit 829ca44ecf
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/infiniband/hw/qib/qib_user_sdma.c
View File

@ -904,10 +904,11 @@ static int qib_user_sdma_queue_pkts(const struct qib_devdata *dd,
}
if (frag_size) {
int pktsize, tidsmsize, n;
int tidsmsize, n;
size_t pktsize;
n = npages*((2*PAGE_SIZE/frag_size)+1);
pktsize = sizeof(*pkt) + sizeof(pkt->addr[0])*n;
pktsize = struct_size(pkt, addr, n);
/*
* Determine if this is tid-sdma or just sdma.