[Bug 207173] New: kvm compiling problem 5.6.x kvm_main.c:2236:42: error: ‘nr_pages_avail’ may be used uninitialized in this function - bugzilla-daemon

From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@vger.kernel.org
Subject: [Bug 207173] New: kvm compiling problem 5.6.x kvm_main.c:2236:42: error: ‘nr_pages_avail’ may be used uninitialized in this function
Date: Thu, 09 Apr 2020 14:25:44 +0000	[thread overview]
Message-ID: <bug-207173-28872@https.bugzilla.kernel.org/> (raw)

https://bugzilla.kernel.org/show_bug.cgi?id=207173

            Bug ID: 207173
           Summary: kvm compiling problem 5.6.x kvm_main.c:2236:42: error:
                    ‘nr_pages_avail’ may be used uninitialized in this
                    function
           Product: Virtualization
           Version: unspecified
    Kernel Version: linux-5.6.-linux-5.6.3
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: blocking
          Priority: P1
         Component: kvm
          Assignee: virtualization_kvm@kernel-bugs.osdl.org
          Reporter: zoran.davidovac@gmail.com
        Regression: No

happens with stock kernel 5.6.x gcc version 9.3.0 (GCC) 


  CC      arch/x86/kvm/../../../virt/kvm/kvm_main.o
arch/x86/kvm/../../../virt/kvm/kvm_main.c: In function
‘__kvm_gfn_to_hva_cache_init’:
arch/x86/kvm/../../../virt/kvm/kvm_main.c:2236:42: error: ‘nr_pages_avail’ may
be used uninitialized in this function [-Werror=maybe-uninitialized]
 2236 |  for ( ; start_gfn <= end_gfn; start_gfn += nr_pages_avail) {
      |                                ~~~~~~~~~~^~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[2]: *** [scripts/Makefile.build:268:
arch/x86/kvm/../../../virt/kvm/kvm_main.o] Error 1
make[1]: *** [scripts/Makefile.build:505: arch/x86/kvm] Error 2
make: *** [Makefile:1683: arch/x86] Error 2

Waited till .3 and I am still surprised that nobody noticed :)

-- 
You are receiving this mail because:
You are watching the assignee of the bug.