From: Mikko Perttunen Date: Tue, 12 Jan 2021 10:22:25 +0000 (+0200) Subject: i2c: bpmp-tegra: Ignore unknown I2C_M flags X-Git-Tag: v4.14.218~50 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bdc7dffa66627150ea3dc2dd6c4a41ee5057ded7;p=thirdparty%2Fkernel%2Fstable.git i2c: bpmp-tegra: Ignore unknown I2C_M flags commit bc1c2048abbe3c3074b4de91d213595c57741a6b upstream. 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 but causes -EINVAL to be returned for valid transactions. Cc: stable@vger.kernel.org # v4.19+ Signed-off-by: Mikko Perttunen Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/i2c/busses/i2c-tegra-bpmp.c b/drivers/i2c/busses/i2c-tegra-bpmp.c index f6cd35d0a2ac0..240bd1e908927 100644 --- a/drivers/i2c/busses/i2c-tegra-bpmp.c +++ b/drivers/i2c/busses/i2c-tegra-bpmp.c @@ -91,7 +91,7 @@ static int tegra_bpmp_xlate_flags(u16 flags, u16 *out) flags &= ~I2C_M_RECV_LEN; } - return (flags != 0) ? -EINVAL : 0; + return 0; } /**