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Miller" , Jakub Kicinski , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2022=EB=85=84 12=EC=9B=94 17=EC=9D=BC (=ED=86=A0) =EC=98=A4=EC=A0=84 6:34, = Alex Elder =EB=8B=98=EC=9D=B4 =EC=9E=91=EC=84=B1: > > On 12/16/22 3:11 PM, Kang Minchul wrote: > > platform_get_irq_byname() returns non-zero IRQ number on success, > > and negative error number on failure. > > > > So comparing return value with zero is unnecessary. > > > > Signed-off-by: Kang Minchul > > --- > > drivers/net/ipa/gsi.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c > > index bea2da1c4c51..e05e94bd9ba0 100644 > > --- a/drivers/net/ipa/gsi.c > > +++ b/drivers/net/ipa/gsi.c > > @@ -1302,7 +1302,7 @@ static int gsi_irq_init(struct gsi *gsi, struct p= latform_device *pdev) > > int ret; > > > > ret =3D platform_get_irq_byname(pdev, "gsi"); > > - if (ret <=3D 0) > > + if (ret < 0) > > return ret ? : -EINVAL; > > In doing this, you assume platform_get_irq_byname() never > returns 0. I accept that assumption now. But in that case, > ret will *always* be non-zero if the branch is taken, so the > next line should simply be: > > return ret; > > There are two other places in the IPA driver that follow exactly > the same pattern of getting the IRQ number and handling the > possibility that the value returned is (erroneously) 0. If > you're making this change in one place, please do so in all > of them. > > Frankly though, I think this change adds little value, and I > would be content to just leave everything as-is... > > -Alex > > > > > gsi->irq =3D ret; > Hmm, yes. I think you're right. I don't think this code is worth much either. Please ignore this patch and leave everything as-is. Thanks for your feedback though :) Kang Minchul