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Tue, 21 Apr 2026 07:11:23 -0700 (PDT) Received: from localhost ([196.207.164.177]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-488fb767961sm112173145e9.16.2026.04.21.07.11.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Apr 2026 07:11:22 -0700 (PDT) Date: Tue, 21 Apr 2026 17:11:19 +0300 From: Dan Carpenter To: Jakub Raczynski Cc: netdev@vger.kernel.org, kuba@kernel.org, przemyslaw.kitszel@intel.com, anthony.l.nguyen@intel.com, kernel-janitors@vger.kernel.org Subject: Re: [PATCH] net/intel: Replace manual array size calculation with ARRAY_SIZE Message-ID: References: <20260421114029.2689961-1-j.raczynski@samsung.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260421114029.2689961-1-j.raczynski@samsung.com> On Tue, Apr 21, 2026 at 01:40:29PM +0200, Jakub Raczynski wrote: > There are still places in the code where manual calculation of array size > exist, but it is good to enforce usage of single macro through the whole > code as it makes code bit more readable. > > Signed-off-by: Jakub Raczynski > --- > drivers/net/ethernet/intel/i40e/i40e_adminq.h | 2 +- > drivers/net/ethernet/intel/iavf/iavf_adminq.h | 2 +- > 2 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.h b/drivers/net/ethernet/intel/i40e/i40e_adminq.h > index 1be97a3a86ce..0e7cecd00169 100644 > --- a/drivers/net/ethernet/intel/i40e/i40e_adminq.h > +++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.h > @@ -109,7 +109,7 @@ static inline int i40e_aq_rc_to_posix(int aq_ret, int aq_rc) > -EFBIG, /* I40E_AQ_RC_EFBIG */ > }; > > - if (!((u32)aq_rc < (sizeof(aq_to_posix) / sizeof((aq_to_posix)[0])))) > + if (!((u32)aq_rc < ARRAY_SIZE(aq_to_posix))) This still isn't beautiful. There are so many parens. The !(foo < size) formulation is weird. The cast is unnnecessary. Better to write it as: if (aq_rc >= ARRAY_SIZE(aq_to_posix)) return -ERANGE; > return -ERANGE; > > return aq_to_posix[aq_rc]; regards, dan carpenter