> > Unfortunately it doesn't appear to work, at least with ppc64le
> > clang:
> >
> > fs/ext4/mballoc.c:2303:17: error: fields must have a constant size:
> > 'variable length array in structure' extension will never be
> > supported ext4_grpblk_t counters[blocksize_bits + 2];
>
> My fix for thi
On Tue, Aug 22, 2017 at 1:08 PM, Anton Blanchard wrote:
> Hi Arnd,
>>
>> Note that while clang won't allow certain kinds of variable-length
>> arrays in structures, this particular instance is fine, as the array
>> is at the end of the structure, and the size is strictly bounded.
>
> Unfortunately
Hi Arnd,
> After commit 62d1034f53e3 ("fortify: use WARN instead of BUG for
> now"), we get a warning about possible stack overflow from a memcpy
> that was not strictly bounded to the size of the local variable:
>
> inlined from 'ext4_mb_seq_groups_show' at
> fs/ext4/mballoc.c:2322:2: includ
On Tuesday, August 1, 2017 5:34:03 PM IST Arnd Bergmann wrote:
> After commit 62d1034f53e3 ("fortify: use WARN instead of BUG for now"),
> we get a warning about possible stack overflow from a memcpy that
> was not strictly bounded to the size of the local variable:
>
> inlined from 'ext4_mb_s
On Sun, Aug 6, 2017 at 3:53 AM, Theodore Ts'o wrote:
> On Tue, Aug 01, 2017 at 02:04:03PM +0200, Arnd Bergmann wrote:
>> There is one remaining issue with the function that I'm not addressing
>> here: With s_blocksize_bits==16, we don't actually print the last two
>> members of the array, as we lo
On Tue, Aug 01, 2017 at 02:04:03PM +0200, Arnd Bergmann wrote:
> There is one remaining issue with the function that I'm not addressing
> here: With s_blocksize_bits==16, we don't actually print the last two
> members of the array, as we loop though just the first 14 members.
> This could be easily
On Tue, Aug 1, 2017 at 5:04 AM, Arnd Bergmann wrote:
> After commit 62d1034f53e3 ("fortify: use WARN instead of BUG for now"),
> we get a warning about possible stack overflow from a memcpy that
> was not strictly bounded to the size of the local variable:
>
> inlined from 'ext4_mb_seq_groups_
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