From: Matthias Brugger <matthias.bgg@gmail.com>
To: Bibby Hsieh <bibby.hsieh@mediatek.com>,
Rob Herring <robh+dt@kernel.org>, CK HU <ck.hu@mediatek.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com,
Nicolas Boichat <drinkcat@chromium.org>,
Dennis-YC Hsieh <dennis-yc.hsieh@mediatek.com>
Subject: Re: [PATCH v17 2/6] soc: mediatek: cmdq: remove OR opertaion from err return
Date: Wed, 11 Dec 2019 19:26:36 +0100 [thread overview]
Message-ID: <839da111-f9a2-39a8-0a08-cb43cea0c3c5@gmail.com> (raw)
In-Reply-To: <20191121015410.18852-3-bibby.hsieh@mediatek.com>
On 21/11/2019 02:54, Bibby Hsieh wrote:
> That make debugging confuseidly when we OR two error return number.
>
> Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
> Reviewed-by: CK Hu <ck.hu@mediatek.com>
Queued for v5.5-next/soc
Thanks!
> ---
> drivers/soc/mediatek/mtk-cmdq-helper.c | 11 ++++++++---
> 1 file changed, 8 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
> index 3c82de5f9417..c8fb69787649 100644
> --- a/drivers/soc/mediatek/mtk-cmdq-helper.c
> +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
> @@ -149,13 +149,16 @@ int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u8 subsys,
> u16 offset, u32 value, u32 mask)
> {
> u32 offset_mask = offset;
> - int err = 0;
> + int err;
>
> if (mask != 0xffffffff) {
> err = cmdq_pkt_append_command(pkt, CMDQ_CODE_MASK, 0, ~mask);
> + if (err < 0)
> + return err;
> +
> offset_mask |= CMDQ_WRITE_ENABLE_MASK;
> }
> - err |= cmdq_pkt_write(pkt, subsys, offset_mask, value);
> + err = cmdq_pkt_write(pkt, subsys, offset_mask, value);
>
> return err;
> }
> @@ -197,9 +200,11 @@ static int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
>
> /* insert EOC and generate IRQ for each command iteration */
> err = cmdq_pkt_append_command(pkt, CMDQ_CODE_EOC, 0, CMDQ_EOC_IRQ_EN);
> + if (err < 0)
> + return err;
>
> /* JUMP to end */
> - err |= cmdq_pkt_append_command(pkt, CMDQ_CODE_JUMP, 0, CMDQ_JUMP_PASS);
> + err = cmdq_pkt_append_command(pkt, CMDQ_CODE_JUMP, 0, CMDQ_JUMP_PASS);
>
> return err;
> }
>
next prev parent reply other threads:[~2019-12-11 18:26 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-21 1:54 [PATCH v17 0/6] support gce on mt8183 platform Bibby Hsieh
2019-11-21 1:54 ` [PATCH v17 1/6] soc: mediatek: cmdq: fixup wrong input order of write api Bibby Hsieh
2019-11-22 8:05 ` CK Hu
2019-11-21 1:54 ` [PATCH v17 2/6] soc: mediatek: cmdq: remove OR opertaion from err return Bibby Hsieh
2019-12-11 18:26 ` Matthias Brugger [this message]
2019-11-21 1:54 ` [PATCH v17 3/6] soc: mediatek: cmdq: define the instruction struct Bibby Hsieh
2019-11-22 8:30 ` CK Hu
2019-12-11 18:39 ` Matthias Brugger
2019-11-21 1:54 ` [PATCH v17 4/6] soc: mediatek: cmdq: add polling function Bibby Hsieh
2019-11-22 8:36 ` CK Hu
2019-12-14 21:45 ` Matthias Brugger
2019-11-21 1:54 ` [PATCH v17 5/6] soc: mediatek: cmdq: add cmdq_dev_get_client_reg function Bibby Hsieh
2019-12-14 21:57 ` Matthias Brugger
2019-11-21 1:54 ` [PATCH v17 6/6] arm64: dts: add gce node for mt8183 Bibby Hsieh
2019-12-11 18:56 ` Matthias Brugger
2019-12-11 22:09 ` [PATCH v17 0/6] support gce on mt8183 platform Nicolas Boichat
2019-12-12 7:49 ` Matthias Brugger
2019-12-12 9:47 ` Bibby Hsieh
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