From: hayeswang Date: Mon, 19 Jan 2015 09:02:45 +0000 (+0800) Subject: r8152: remove generic_ocp_read before writing X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8cb3db24c80958647f8a1b65e4968f9f043ffc3d;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git r8152: remove generic_ocp_read before writing For ocp_write_word() and ocp_write_byte(), there is a generic_ocp_read() which is used to read the whole 4 byte data, keep the unchanged bytes, and modify the expected bytes. However, the "byen" could be used to determine which bytes of the 4 bytes to write, so the action could be removed. Signed-off-by: Hayes Wang Signed-off-by: David S. Miller --- diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 57ec23e8ccfa..0aa83fb4838d 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -833,9 +833,6 @@ static void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data) index &= ~3; } - generic_ocp_read(tp, index, sizeof(tmp), &tmp, type); - - data |= __le32_to_cpu(tmp) & ~mask; tmp = __cpu_to_le32(data); generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type); @@ -874,9 +871,6 @@ static void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data) index &= ~3; } - generic_ocp_read(tp, index, sizeof(tmp), &tmp, type); - - data |= __le32_to_cpu(tmp) & ~mask; tmp = __cpu_to_le32(data); generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);