Re: [PATCH] iwlwifi: pcie: fix constant-conversion warning

[Coelho, Luciano]

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>

--
Cheers,
Luca.