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Date: Mon, 18 Sep 2017 00:19:38 +0000 From: "Levin, Alexander (Sasha Levin)" <alexander.levin@...izon.com> To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "stable@...r.kernel.org" <stable@...r.kernel.org> Cc: "sudarsana.kalluru@...ium.com" <sudarsana.kalluru@...ium.com>, "Sudarsana Reddy Kalluru" <Sudarsana.Kalluru@...ium.com>, Yuval Mintz <Yuval.Mintz@...ium.com>, "David S . Miller" <davem@...emloft.net>, "Levin, Alexander (Sasha Levin)" <alexander.levin@...izon.com> Subject: [PATCH for 4.9 07/39] qed: Fix possible system hang in the dcbnl-getdcbx() path. From: "sudarsana.kalluru@...ium.com" <sudarsana.kalluru@...ium.com> [ Upstream commit 62289ba27558553871fd047baadaaeda886c6a63 ] qed_dcbnl_get_dcbx() API uses kmalloc in GFT_KERNEL mode. The API gets invoked in the interrupt context by qed_dcbnl_getdcbx callback. Need to invoke this kmalloc in atomic mode. Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@...ium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@...ium.com> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Sasha Levin <alexander.levin@...izon.com> --- drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c index a4789a93b692..9d59cb85c012 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c +++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c @@ -1222,7 +1222,7 @@ static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn, { struct qed_dcbx_get *dcbx_info; - dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL); + dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_ATOMIC); if (!dcbx_info) return NULL; -- 2.11.0
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