From: Dan Carpenter <dan.carpenter@oracle.com>
To: "Brandeburg, Jesse" <jesse.brandeburg@intel.com>
Cc: "smatch@vger.kernel.org" <smatch@vger.kernel.org>
Subject: Re: FW: [error27/smatch] smatch misidentifies uninitialized variable after switch with no default: (Issue #3)
Date: Mon, 10 Jan 2022 15:42:10 +0300 [thread overview]
Message-ID: <20220110124210.GC1978@kadam> (raw)
In-Reply-To: <CO1PR11MB4914FD7F8F25CA5988BDBE41974D9@CO1PR11MB4914.namprd11.prod.outlook.com>
Thanks for the bug report. The ideal way to fix this would be to handle
it in Smatch core so that if called get_implied_rl(cmd, &rl) then it
would return 0-2.
Unfortunately, that's quite a bit of work to implement it properly...
For now, I'm just going to add a special case in check_uninitialized.c
to silence these warnings. If you have a switch(some_enum) and there is
no default statement, then mark all the partially initialized variables
as fully initialized.
regards,
dan carpenter
prev parent reply other threads:[~2022-01-10 12:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <error27/smatch/issues/3@github.com>
2022-01-07 16:19 ` FW: [error27/smatch] smatch misidentifies uninitialized variable after switch with no default: (Issue #3) Brandeburg, Jesse
2022-01-10 12:42 ` Dan Carpenter [this message]
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