From: Mikko Perttunen <mperttunen@nvidia.com>
To: thierry.reding@gmail.com, jonathanh@nvidia.com
Cc: talho@nvidia.com, linux-i2c@vger.kernel.org,
linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
Mikko Perttunen <mperttunen@nvidia.com>,
stable@vger.kernel.org
Subject: [PATCH v3] i2c: bpmp-tegra: Ignore unknown I2C_M flags
Date: Tue, 12 Jan 2021 12:22:25 +0200 [thread overview]
Message-ID: <20210112102225.3737326-1-mperttunen@nvidia.com> (raw)
In order to not to start returning errors when new I2C_M flags are
added, change behavior to just ignore all flags that we don't know
about. This includes the I2C_M_DMA_SAFE flag that already exists.
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
---
v3:
- Ignore all unknown flags instead of just I2C_M_DMA_SAFE
---
drivers/i2c/busses/i2c-tegra-bpmp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-tegra-bpmp.c b/drivers/i2c/busses/i2c-tegra-bpmp.c
index ec7a7e917edd..c0c7d01473f2 100644
--- a/drivers/i2c/busses/i2c-tegra-bpmp.c
+++ b/drivers/i2c/busses/i2c-tegra-bpmp.c
@@ -80,7 +80,7 @@ static int tegra_bpmp_xlate_flags(u16 flags, u16 *out)
flags &= ~I2C_M_RECV_LEN;
}
- return (flags != 0) ? -EINVAL : 0;
+ return 0;
}
/**
--
2.30.0
next reply other threads:[~2021-01-12 10:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-12 10:22 Mikko Perttunen [this message]
2021-01-17 11:20 ` [PATCH v3] i2c: bpmp-tegra: Ignore unknown I2C_M flags Wolfram Sang
2021-01-18 11:22 ` Mikko Perttunen
2021-01-18 11:34 ` Wolfram Sang
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