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From 47b95959941b3d7d2d35a128da5685799329aaf6 Mon Sep 17 00:00:00 2001
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From: Michael Chan <mchan@broadcom.com>
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Date: Tue, 22 Nov 2016 18:55:47 -0500
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Subject: [PATCH 3/3] ethtool: Fix the "advertise" parameter logic.
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The current code ignores the value of the advertise parameter. For example,
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ethtool -s ethx advertise 0x1000
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The full_advertising_wanted parameter of 0x1000 is not passed to the kernel.
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The reason is that advertising_wanted is NULL in this case, and ethtool
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will think that the user has given no advertisement input and so it will
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proceed to pass all supported advertisement speeds to the kernel.
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The older legacy ethtool with similar logic worked because
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advertising_wanted was an integer and could take on -1 and 0. It would pass
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the full_advertising_wanted value if advertising_wanted == -1.
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This fix is to pass all supported advertisement speeds only when both
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advertising_wanted == NULL && full_advertising_wanted == NULL.
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Signed-off-by: Michael Chan <michael.chan@broadcom.com>
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Signed-off-by: John W. Linville <linville@tuxdriver.com>
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---
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ethtool.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/ethtool.c b/ethtool.c
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index 0d3244e..ce48639 100644
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--- a/ethtool.c
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+++ b/ethtool.c
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@@ -2972,7 +2972,8 @@ static int do_sset(struct cmd_context *ctx)
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fprintf(stderr, "\n");
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}
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if (autoneg_wanted == AUTONEG_ENABLE &&
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- advertising_wanted == NULL) {
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+ advertising_wanted == NULL &&
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+ full_advertising_wanted == NULL) {
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unsigned int i;
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/* Auto negotiation enabled, but with
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--
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1.8.3.1
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