On Mon, 2021-11-01 at 09:29 +0200, Luciano Coelho wrote:
> On Sun, 2021-10-31 at 09:06 +0200, Kalle Valo wrote:
> > Arnd Bergmann <arnd@xxxxxxxxxx> writes:
> >
> > > From: Arnd Bergmann <arnd@xxxxxxxx>
> > >
> > > clang points out a potential issue with integer overflow when
> > > the iwl_dev_info_table[] array is empty:
> > >
> > > drivers/net/wireless/intel/iwlwifi/pcie/drv.c:1344:42: error: implicit conversion from 'unsigned long' to 'int' changes value from 18446744073709551615 to -1 [-Werror,-Wconstant-conversion]
> > > for (i = ARRAY_SIZE(iwl_dev_info_table) - 1; i >= 0; i--) {
> > > ~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
> > >
> > > This is still harmless, as the loop correctly terminates, but adding
> > > an (int) cast makes that clearer to the compiler.
> > >
> > > Fixes: 3f7320428fa4 ("iwlwifi: pcie: simplify iwl_pci_find_dev_info()")
> > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> >
> > Luca, can I take this to wireless-drivers? Ack?
>
> Yes, please do.
>
> Thanks.
>
> Acked-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
Actually, wouldn't it be simpler to change the declaration of i to be
unsigned int?
--
Luca.
