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Message-ID: <380b24cec19eb4fb765b8a136d8525eec030c1ba.camel@gmail.com>
Subject: Re: [Outreachy kernel][PATCH] staging: media: hantro: Rewrite macro
 function in lower case
From:   ascordeiro <alinesantanacordeiro@gmail.com>
To:     Julia Lawall <julia.lawall@inria.fr>
Cc:     Ezequiel Garcia <ezequiel@collabora.com>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-media@vger.kernel.org, linux-staging@lists.linux.dev,
        linux-kernel@vger.kernel.org, outreachy-kernel@googlegroups.com
Date:   Fri, 09 Apr 2021 14:39:26 -0300
In-Reply-To: <alpine.DEB.2.22.394.2104091924510.17316@hadrien>
References: <20210409135404.GA26172@focaruja>
          <9c09806cce4c7e5c5f0dc03e8c502cf29716f00f.camel@collabora.com>
         <138794d79c42510d9b6ae744df20216904773032.camel@gmail.com>
         <alpine.DEB.2.22.394.2104091924510.17316@hadrien>
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Em sex, 2021-04-09 às 19:25 +0200, Julia Lawall escreveu:
> 
> 
> On Fri, 9 Apr 2021, ascordeiro wrote:
> 
> > Em sex, 2021-04-09 às 13:44 -0300, Ezequiel Garcia escreveu:
> > > Hi Aline,
> > 
> > Hi Ezequiel,
> > > 
> > > On Fri, 2021-04-09 at 10:54 -0300, Aline Santana Cordeiro wrote:
> > > > Rewrite macros resembling functions #define HANTRO_PP_REG_WRITE
> > > > and #define HANTRO_PP_RED_WRITE_S in lower case, according with
> > > > code style.
> 
> Maybe you can see if these macros can be converted to static inline
> functions.  Macros don't provide any type checking.

Okay! I'm going to check this option.

Thank you for the advice!
Aline
> 

> julia
> 
> > > > 
> > > 
> > > Where is this written in the Coding Style?
> > 
> > I found this in section 12, about Macros, Enums and RTL in both
> > references:
> > https://www.kernel.org/doc/html/latest/process/coding-style.html
> > https://elixir.bootlin.com/linux/latest/source/Documentation/process/coding-style.rst
> > > 
> > > Thanks!
> > > Ezequiel
> > 
> > Thank you!
> > Aline
> > > 
> > > > Signed-off-by: Aline Santana Cordeiro <
> > > > alinesantanacordeiro@gmail.com>
> > > > ---
> > > >  drivers/staging/media/hantro/hantro_postproc.c | 34
> > > > +++++++++++++-
> > > > ------------
> > > >  1 file changed, 17 insertions(+), 17 deletions(-)
> > > > 
> > > > diff --git a/drivers/staging/media/hantro/hantro_postproc.c
> > > > b/drivers/staging/media/hantro/hantro_postproc.c
> > > > index 6d2a8f2a..06279c0 100644
> > > > --- a/drivers/staging/media/hantro/hantro_postproc.c
> > > > +++ b/drivers/staging/media/hantro/hantro_postproc.c
> > > > @@ -12,14 +12,14 @@
> > > >  #include "hantro_hw.h"
> > > >  #include "hantro_g1_regs.h"
> > > >  
> > > > -#define HANTRO_PP_REG_WRITE(vpu, reg_name, val) \
> > > > +#define hantro_pp_reg_write(vpu, reg_name, val) \
> > > >  { \
> > > >         hantro_reg_write(vpu, \
> > > >                          &(vpu)->variant->postproc_regs-
> > > > >reg_name,
> > > > \
> > > >                          val); \
> > > >  }
> > > >  
> > > > -#define HANTRO_PP_REG_WRITE_S(vpu, reg_name, val) \
> > > > +#define hantro_pp_reg_write_s(vpu, reg_name, val) \
> > > >  { \
> > > >         hantro_reg_write_s(vpu, \
> > > >                            &(vpu)->variant->postproc_regs-
> > > > > reg_name, \
> > > > @@ -61,7 +61,7 @@ void hantro_postproc_enable(struct hantro_ctx
> > > > *ctx)
> > > >                 return;
> > > >  
> > > >         /* Turn on pipeline mode. Must be done first. */
> > > > -       HANTRO_PP_REG_WRITE_S(vpu, pipeline_en, 0x1);
> > > > +       hantro_pp_reg_write_s(vpu, pipeline_en, 0x1);
> > > >  
> > > >         src_pp_fmt = VPU_PP_IN_NV12;
> > > >  
> > > > @@ -79,19 +79,19 @@ void hantro_postproc_enable(struct
> > > > hantro_ctx
> > > > *ctx)
> > > >         dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
> > > >         dst_dma = vb2_dma_contig_plane_dma_addr(&dst_buf-
> > > > >vb2_buf,
> > > > 0);
> > > >  
> > > > -       HANTRO_PP_REG_WRITE(vpu, clk_gate, 0x1);
> > > > -       HANTRO_PP_REG_WRITE(vpu, out_endian, 0x1);
> > > > -       HANTRO_PP_REG_WRITE(vpu, out_swap32, 0x1);
> > > > -       HANTRO_PP_REG_WRITE(vpu, max_burst, 16);
> > > > -       HANTRO_PP_REG_WRITE(vpu, out_luma_base, dst_dma);
> > > > -       HANTRO_PP_REG_WRITE(vpu, input_width, MB_WIDTH(ctx-
> > > > > dst_fmt.width));
> > > > -       HANTRO_PP_REG_WRITE(vpu, input_height, MB_HEIGHT(ctx-
> > > > > dst_fmt.height));
> > > > -       HANTRO_PP_REG_WRITE(vpu, input_fmt, src_pp_fmt);
> > > > -       HANTRO_PP_REG_WRITE(vpu, output_fmt, dst_pp_fmt);
> > > > -       HANTRO_PP_REG_WRITE(vpu, output_width, ctx-
> > > > >dst_fmt.width);
> > > > -       HANTRO_PP_REG_WRITE(vpu, output_height, ctx-
> > > > > dst_fmt.height);
> > > > -       HANTRO_PP_REG_WRITE(vpu, orig_width, MB_WIDTH(ctx-
> > > > > dst_fmt.width));
> > > > -       HANTRO_PP_REG_WRITE(vpu, display_width, ctx-
> > > > > dst_fmt.width);
> > > > +       hantro_pp_reg_write(vpu, clk_gate, 0x1);
> > > > +       hantro_pp_reg_write(vpu, out_endian, 0x1);
> > > > +       hantro_pp_reg_write(vpu, out_swap32, 0x1);
> > > > +       hantro_pp_reg_write(vpu, max_burst, 16);
> > > > +       hantro_pp_reg_write(vpu, out_luma_base, dst_dma);
> > > > +       hantro_pp_reg_write(vpu, input_width, MB_WIDTH(ctx-
> > > > > dst_fmt.width));
> > > > +       hantro_pp_reg_write(vpu, input_height, MB_HEIGHT(ctx-
> > > > > dst_fmt.height));
> > > > +       hantro_pp_reg_write(vpu, input_fmt, src_pp_fmt);
> > > > +       hantro_pp_reg_write(vpu, output_fmt, dst_pp_fmt);
> > > > +       hantro_pp_reg_write(vpu, output_width, ctx-
> > > > >dst_fmt.width);
> > > > +       hantro_pp_reg_write(vpu, output_height, ctx-
> > > > > dst_fmt.height);
> > > > +       hantro_pp_reg_write(vpu, orig_width, MB_WIDTH(ctx-
> > > > > dst_fmt.width));
> > > > +       hantro_pp_reg_write(vpu, display_width, ctx-
> > > > > dst_fmt.width);
> > > >  }
> > > >  
> > > >  void hantro_postproc_free(struct hantro_ctx *ctx)
> > > > @@ -146,5 +146,5 @@ void hantro_postproc_disable(struct
> > > > hantro_ctx
> > > > *ctx)
> > > >         if (!vpu->variant->postproc_regs)
> > > >                 return;
> > > >  
> > > > -       HANTRO_PP_REG_WRITE_S(vpu, pipeline_en, 0x0);
> > > > +       hantro_pp_reg_write_s(vpu, pipeline_en, 0x0);
> > > >  }
> > > 
> > > 
> > 
> > 
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