From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: Lucas Stach <l.stach@pengutronix.de>
Cc: "barebox@lists.infradead.org" <barebox@lists.infradead.org>
Subject: Re: [PATCH v2] net: e1000: fix i210 register remapping
Date: Wed, 2 Nov 2016 07:08:32 -0700 [thread overview]
Message-ID: <CAHQ1cqG=+HJ_W3kpgc22M_A4U3ryVHtoh=wfoaBEJe0DVyKe0w@mail.gmail.com> (raw)
In-Reply-To: <20161031165812.9958-1-l.stach@pengutronix.de>
On Mon, Oct 31, 2016 at 9:58 AM, Lucas Stach <l.stach@pengutronix.de> wrote:
> Don't mask out the remapping flag before checking the register offset,
> otherwise none of the switch statements will ever match.
>
> Fixes: ff6a64d42ffc (e1000: Consolidate register offset fixups)
> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
FWIW, as an author of the bug (sorry!):
Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com>
> ---
> v2: don't break it the other way around
> ---
> drivers/net/e1000/regio.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/e1000/regio.c b/drivers/net/e1000/regio.c
> index b2e9d7b6a7df..1610d5851f05 100644
> --- a/drivers/net/e1000/regio.c
> +++ b/drivers/net/e1000/regio.c
> @@ -5,8 +5,6 @@
> static uint32_t e1000_true_offset(struct e1000_hw *hw, uint32_t reg)
> {
> if (reg & E1000_MIGHT_BE_REMAPPED) {
> - reg &= ~E1000_MIGHT_BE_REMAPPED;
> -
> if (hw->mac_type == e1000_igb) {
> switch (reg) {
> case E1000_EEWR:
> @@ -19,7 +17,8 @@ static uint32_t e1000_true_offset(struct e1000_hw *hw, uint32_t reg)
> reg = E1000_I210_EEMNGCTL;
> break;
> }
> - };
> + }
> + reg &= ~E1000_MIGHT_BE_REMAPPED;
> }
>
> return reg;
> --
> 2.10.1
>
>
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next prev parent reply other threads:[~2016-11-02 14:08 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-31 16:58 Lucas Stach
2016-11-02 14:08 ` Andrey Smirnov [this message]
2016-11-03 6:09 ` Sascha Hauer
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