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Message-ID: <CA+V-a8vdijL7qcju2zH2phfj2+NXNkw35g8j8KX=RR74jSAK1Q@mail.gmail.com>
Date:   Mon, 19 Dec 2022 11:21:01 +0000
From:   "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To:     Conor Dooley <conor@...nel.org>
Cc:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Samuel Holland <samuel@...lland.org>,
        Guo Ren <guoren@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jisheng Zhang <jszhang@...nel.org>,
        Atish Patra <atishp@...osinc.com>,
        Anup Patel <apatel@...tanamicro.com>,
        Andrew Jones <ajones@...tanamicro.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Philipp Tomsich <philipp.tomsich@...ll.eu>,
        devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Biju Das <biju.das.jz@...renesas.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH v5 4/6] riscv: mm: dma-noncoherent: Pass direction and
 operation to ALT_CMO_OP()

Hi Conor,

Thank you for the review.

On Sat, Dec 17, 2022 at 8:52 PM Conor Dooley <conor@...nel.org> wrote:
>
> Hey Prabhakar,
>
> On Mon, Dec 12, 2022 at 11:55:03AM +0000, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> >
> > Pass direction and operation to ALT_CMO_OP() macro.
> >
> > Vendors might want to perform different operations based on the direction
> > and callbacks (arch_sync_dma_for_device/arch_sync_dma_for_cpu/
> > arch_dma_prep_coherent) so to handle such cases pass the direction and
> > operation to ALT_CMO_OP() macro. This is in preparation for adding errata
> > for the Andes CPU core.
>
> This patch seems to break the build on top of the most recent
> linux-next:
> ......./stuff/linux/arch/riscv/mm/pmem.c:13:53: error: too few arguments provided to function-like macro invocation
>         ALT_CMO_OP(clean, addr, size, riscv_cbom_block_size);
>                                                            ^
> /stuff/linux/arch/riscv/include/asm/errata_list.h:127:9: note: macro 'ALT_CMO_OP' defined here
> #define ALT_CMO_OP(_op, _start, _size, _cachesize, _dir, _ops)          \
>         ^
> ..  CC      block/partitions/sgi.o
> .+...+/stuff/linux/arch/riscv/mm/pmem.c:13:2: error: use of undeclared identifier 'ALT_CMO_OP'
>         ALT_CMO_OP(clean, addr, size, riscv_cbom_block_size);
>         ^
> /stuff/linux/arch/riscv/mm/pmem.c:19:53: error: too few arguments provided to function-like macro invocation
>         ALT_CMO_OP(inval, addr, size, riscv_cbom_block_size);
>                                                            ^
> /stuff/linux/arch/riscv/include/asm/errata_list.h:127:9: note: macro 'ALT_CMO_OP' defined here
> #define ALT_CMO_OP(_op, _start, _size, _cachesize, _dir, _ops)          \
>         ^
> ...........  AR      lib/math/built-in.a
> ./stuff/linux/arch/riscv/mm/pmem.c:19:2: .error: use of undeclared identifier 'ALT_CMO_OP'
>         ALT_CMO_OP(inval, addr, size, riscv_cbom_block_size);
>         ^
> ..4 errors generated.
>
> The pmem stuff is new so that'd be why it has not come up before.
>
> (FWIW, clang allmodconfig)
>
Yes I need to rebase my changes on Palmer's branch.

Cheers,
Prabhakar

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