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Date: Mon, 25 Oct 2021 14:43:03 +0530 From: Praveen Kumar <kpraveen.lkml@...il.com> To: Kushal Kothari <kushalkothari285@...il.com>, gregkh@...uxfoundation.org, fabioaiuto83@...il.com, ross.schm.dev@...il.com, hdegoede@...hat.com, marcocesati@...il.com, fmdefrancesco@...il.com, linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org, outreachy-kernel@...glegroups.com, mike.rapoport@...il.com, kushalkothari2850@...il.com Subject: Re: [Outreachy kernel] [PATCH] staging: rtl8723bs: core: Refactor nested if-else On 25-10-2021 12:55, Kushal Kothari wrote: > Refactor nested if else by combining nested if into a single if condition and removing unnecessary else conditionals which leads to removing unnecessary tabs .There is no change in logic of new code. > checkpatch warning : Too many leading tabs - consider code refactoring > > Signed-off-by: Kushal Kothari <kushalkothari285@...il.com> > --- > drivers/staging/rtl8723bs/core/rtw_mlme_ext.c | 65 ++++++++----------- > 1 file changed, 26 insertions(+), 39 deletions(-) > > diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c > index 0f82f5031c43..eb10b6f85426 100644 > --- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c > +++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c > @@ -1192,46 +1192,33 @@ unsigned int OnAssocReq(struct adapter *padapter, union recv_frame *precv_frame) > p = pframe + WLAN_HDR_A3_LEN + ie_offset; ie_len = 0; > for (;;) { > p = rtw_get_ie(p, WLAN_EID_VENDOR_SPECIFIC, &ie_len, pkt_len - WLAN_HDR_A3_LEN - ie_offset); > - if (p) { > - if (!memcmp(p+2, WMM_IE, 6)) { > - > - pstat->flags |= WLAN_STA_WME; > - > - pstat->qos_option = 1; > - pstat->qos_info = *(p+8); > - > - pstat->max_sp_len = (pstat->qos_info>>5)&0x3; > - > - if ((pstat->qos_info&0xf) != 0xf) > - pstat->has_legacy_ac = true; > - else > - pstat->has_legacy_ac = false; > - > - if (pstat->qos_info&0xf) { > - if (pstat->qos_info&BIT(0)) > - pstat->uapsd_vo = BIT(0)|BIT(1); > - else > - pstat->uapsd_vo = 0; > - > - if (pstat->qos_info&BIT(1)) > - pstat->uapsd_vi = BIT(0)|BIT(1); > - else > - pstat->uapsd_vi = 0; > - > - if (pstat->qos_info&BIT(2)) > - pstat->uapsd_bk = BIT(0)|BIT(1); > - else > - pstat->uapsd_bk = 0; > - > - if (pstat->qos_info&BIT(3)) > - pstat->uapsd_be = BIT(0)|BIT(1); > - else > - pstat->uapsd_be = 0; > - > - } > - > - break; > + if (p && !memcmp(p+2, WMM_IE, 6)) { > + pstat->flags |= WLAN_STA_WME; > + pstat->qos_option = 1; > + pstat->qos_info = *(p+8); > + pstat->max_sp_len = (pstat->qos_info>>5)&0x3; > + pstat->has_legacy_ac = false; > + if ((pstat->qos_info&0xf) != 0xf) > + pstat->has_legacy_ac = true; > + > + pstat->uapsd_vo = 0; > + if (pstat->qos_info&0xf) { > + if (pstat->qos_info&BIT(0)) > + pstat->uapsd_vo = BIT(0)|BIT(1); > + > + pstat->uapsd_vi = 0; > + if (pstat->qos_info&BIT(1)) > + pstat->uapsd_vi = BIT(0)|BIT(1); > + > + pstat->uapsd_bk = 0; > + if (pstat->qos_info&BIT(2)) > + pstat->uapsd_bk = BIT(0)|BIT(1); > + > + pstat->uapsd_be = 0; > + if (pstat->qos_info&BIT(3)) > + pstat->uapsd_be = BIT(0)|BIT(1); > } > + break; > } else { > break; > } there is a bug here, if *p* is not null, and *memcmp* failed; then we fall in else part and break, and will miss the next entry in *p* using below statement p = p + ie_len + 2; > Regards, ~Praveen.
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