Re: [PATCH 5/9] rpmsg: introduce reserved rpmsg driver for ns announcement
From: kernel test robot
Date: Wed Aug 05 2020 - 05:06:08 EST
Hi Arnaud,
I love your patch! Perhaps something to improve:
[auto build test WARNING on next-20200730]
[also build test WARNING on v5.8]
[cannot apply to linux/master linus/master rpmsg/for-next v5.8-rc7 v5.8-rc6 v5.8-rc5]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Arnaud-Pouliquen/introduce-name-service-announcement-rpmsg-driver/20200731-195014
base: 7b287a5c6ac518c415a258f2aa7b1ebb25c263d2
compiler: nds32le-linux-gcc (GCC) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
cppcheck warnings: (new ones prefixed by >>)
>> drivers/rpmsg/rpmsg_ns.c:68:34: warning: Clarify calculation precedence for '&' and '?'. [clarifyCalculation]
msg->flags & RPMSG_NS_DESTROY ? "destroy" : "creat",
^
vim +68 drivers/rpmsg/rpmsg_ns.c
54
55 if (len != sizeof(*msg)) {
56 dev_err(dev, "malformed ns msg (%d)\n", len);
57 return -EINVAL;
58 }
59
60 /* don't trust the remote processor for null terminating the name */
61 msg->name[RPMSG_NAME_SIZE - 1] = '\0';
62
63 strncpy(chinfo.name, msg->name, sizeof(chinfo.name));
64 chinfo.src = RPMSG_ADDR_ANY;
65 chinfo.dst = msg->addr;
66
67 dev_info(dev, "%sing channel %s addr 0x%x\n",
> 68 msg->flags & RPMSG_NS_DESTROY ? "destroy" : "creat",
69 msg->name, msg->addr);
70
71 if (msg->flags & RPMSG_NS_DESTROY) {
72 ret = rpmsg_release_channel(rpdev, &chinfo);
73 if (ret)
74 dev_err(dev, "rpmsg_destroy_channel failed: %d\n", ret);
75 } else {
76 newch = rpmsg_create_channel(rpdev, &chinfo);
77 if (!newch)
78 dev_err(dev, "rpmsg_create_channel failed\n");
79 }
80
81 return 0;
82 }
83
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