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path: root/net/wireless/ethtool.c
blob: e9e91298c70de7bdab61b31b795df213c5a71461 (plain)
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#include <linux/utsname.h>
#include <net/cfg80211.h>
#include "core.h"
#include "rdev-ops.h"

void cfg80211_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;

	strlcpy(info->driver, wiphy_dev(wdev->wiphy)->driver->name,
		sizeof(info->driver));

	strlcpy(info->version, init_utsname()->release, sizeof(info->version));

	if (wdev->wiphy->fw_version[0])
		strlcpy(info->fw_version, wdev->wiphy->fw_version,
			sizeof(info->fw_version));
	else
		strlcpy(info->fw_version, "N/A", sizeof(info->fw_version));

	strlcpy(info->bus_info, dev_name(wiphy_dev(wdev->wiphy)),
		sizeof(info->bus_info));
}
EXPORT_SYMBOL(cfg80211_get_drvinfo);
c'>patch) treece6547ef2987fbb289fa28f03536328a42781651 /include/drm/drm_irq.h parent191e885a2e130e639bb0c8ee350d7047294f2ce6 (diff)
Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()
Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") added the proper mb(), but removed the test "prev_write_sz < pending_sz" when making the signal decision. As a result, the guest can signal the host unnecessarily, and then the host can throttle the guest because the host thinks the guest is buggy or malicious; finally the user running stress test can perceive intermittent freeze of the guest. This patch brings back the test, and properly handles the in-place consumption APIs used by NetVSC (see get_next_pkt_raw(), put_pkt_raw() and commit_rd_index()). Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Tested-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: <stable@vger.kernel.org> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/drm/drm_irq.h')