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Date: Tue, 7 Jul 2020 14:50:23 -0500
From: "Gustavo A. R. Silva" <gustavoars@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Alan Stern <stern@...land.harvard.edu>
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
"Gustavo A. R. Silva" <gustavoars@...nel.org>
Subject: [PATCH] usb: host: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
drivers/usb/host/ehci-dbg.c | 2 +-
drivers/usb/host/ehci-fsl.c | 4 ++--
drivers/usb/host/ehci-hcd.c | 4 ++--
drivers/usb/host/ehci-q.c | 2 +-
drivers/usb/host/ehci-sched.c | 2 +-
5 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index 7619cfb06883..0b7f1edd9eec 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -823,7 +823,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf)
break;
case 0: /* illegal reserved capability */
cap = 0;
- /* FALLTHROUGH */
+ fallthrough;
default: /* unknown */
break;
}
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 9e9c232e896f..6c2b53baa515 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -234,7 +234,7 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd,
break;
case FSL_USB2_PHY_UTMI_WIDE:
portsc |= PORT_PTS_PTW;
- /* fall through */
+ fallthrough;
case FSL_USB2_PHY_UTMI:
/* Presence of this node "has_fsl_erratum_a006918"
* in device-tree is used to stop USB controller
@@ -244,7 +244,7 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd,
dev_warn(dev, "USB PHY clock invalid\n");
return -EINVAL;
}
- /* fall through */
+ fallthrough;
case FSL_USB2_PHY_UTMI_DUAL:
/* PHY_CLK_VALID bit is de-featured from all controller
* versions below 2.4 and is to be checked only for
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index cf2b7ae93b7e..6257be4110ca 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -982,7 +982,7 @@ ehci_endpoint_disable (struct usb_hcd *hcd, struct usb_host_endpoint *ep)
start_unlink_async(ehci, qh);
else
start_unlink_intr(ehci, qh);
- /* FALL THROUGH */
+ fallthrough;
case QH_STATE_COMPLETING: /* already in unlinking */
case QH_STATE_UNLINK: /* wait for hw to finish? */
case QH_STATE_UNLINK_WAIT:
@@ -999,7 +999,7 @@ ehci_endpoint_disable (struct usb_hcd *hcd, struct usb_host_endpoint *ep)
qh_destroy(ehci, qh);
break;
}
- /* fall through */
+ fallthrough;
default:
/* caller was supposed to have unlinked any requests;
* that's not our job. just leak this memory.
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 8a5c9b3ebe1e..a826715ae9bd 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -874,7 +874,7 @@ qh_make (
switch (urb->dev->speed) {
case USB_SPEED_LOW:
info1 |= QH_LOW_SPEED;
- /* FALL THROUGH */
+ fallthrough;
case USB_SPEED_FULL:
/* EPS 0 means "full" */
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index da7b00a6110b..847979f265b1 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -2475,7 +2475,7 @@ static void scan_isoc(struct ehci_hcd *ehci)
ehci_dbg(ehci, "corrupt type %d frame %d shadow %p\n",
type, frame, q.ptr);
/* BUG(); */
- /* FALL THROUGH */
+ fallthrough;
case Q_TYPE_QH:
case Q_TYPE_FSTN:
/* End of the iTDs and siTDs */
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