linux-kernel - Re: [PATCH 1/2] staging: rtl8723bs: Simplify underutilized 2D array to 1D array

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 8 Nov 2022 16:19:41 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Deepak R Varma <drv@...lo.com>
Cc:     outreachy@...ts.linux.dev, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] staging: rtl8723bs: Simplify underutilized 2D array
 to 1D array

On Sat, Nov 05, 2022 at 02:47:49PM +0530, Deepak R Varma wrote:
> On Sat, Nov 05, 2022 at 02:14:12PM +0530, Deepak R Varma wrote:
> > On Sat, Nov 05, 2022 at 09:36:21AM +0100, Greg Kroah-Hartman wrote:
> > > >
> > > > diff --git a/drivers/staging/rtl8723bs/hal/odm.h b/drivers/staging/rtl8723bs/hal/odm.h
> > > > index fe9782d2d4fd..e16a769850c5 100644
> > > > --- a/drivers/staging/rtl8723bs/hal/odm.h
> > > > +++ b/drivers/staging/rtl8723bs/hal/odm.h
> > > > @@ -481,7 +481,7 @@ enum odm_type_alna_e { /* tag_ODM_TYPE_ALNA_Definition */
> > > >
> > > >  struct iqk_matrix_regs_setting { /* _IQK_MATRIX_REGS_SETTING */
> > > >  	bool bIQKDone;
> > > > -	s32 Value[3][IQK_Matrix_REG_NUM];
> > > > +	s32 Value[IQK_Matrix_REG_NUM];
> > >
> > > This field is used to store values (as your above patch shows), but
> > > where is it actually used?  Are you sure it is needed at all?
> >
> > Hi Greg,
> > For this driver, the values are passed onto setIqkMatrix_8723B() as arguments
> > and used inside this function. They are needed to be retained in the structure.
> 
> Hello Greg,
> Upon further review of the structure, I observed that the member "bIQKDone" is
> also not used anywhere in the code and it can be removed as well. That cleanup
> will lead to replacing this entire structure by a simple one dimensional 'Value"
> array.
> 
> Please suggest if I should make that change and send in a revision?

Yes, that would be a better overall change.

thanks,

greg k-h