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From: Stefan Wahren <stefan.wahren@i2se.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Nicolas Saenz Julienne <nsaenz@kernel.org>
Cc: linux-staging@lists.linux.dev, Stefan Wahren <stefan.wahren@i2se.com>
Subject: [PATCH 14/20] staging: vchiq_core: reduce indention in release_service_messages
Date: Sat, 15 May 2021 21:10:53 +0200	[thread overview]
Message-ID: <1621105859-30215-15-git-send-email-stefan.wahren@i2se.com> (raw)
In-Reply-To: <1621105859-30215-1-git-send-email-stefan.wahren@i2se.com>

It's possible to convert the if statement into a continue early and
save an indention level.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
 .../vc04_services/interface/vchiq_arm/vchiq_core.c | 71 +++++++++++-----------
 1 file changed, 36 insertions(+), 35 deletions(-)

diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
index b3e81ac..2ac3545 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
@@ -2578,42 +2578,43 @@ release_service_messages(struct vchiq_service *service)
 	for (i = state->remote->slot_first; i <= slot_last; i++) {
 		struct vchiq_slot_info *slot_info =
 			SLOT_INFO_FROM_INDEX(state, i);
-		if (slot_info->release_count != slot_info->use_count) {
-			char *data =
-				(char *)SLOT_DATA_FROM_INDEX(state, i);
-			unsigned int pos, end;
+		unsigned int pos, end;
+		char *data;
 
-			end = VCHIQ_SLOT_SIZE;
-			if (data == state->rx_data)
-				/*
-				 * This buffer is still being read from - stop
-				 * at the current read position
-				 */
-				end = state->rx_pos & VCHIQ_SLOT_MASK;
-
-			pos = 0;
-
-			while (pos < end) {
-				struct vchiq_header *header =
-					(struct vchiq_header *)(data + pos);
-				int msgid = header->msgid;
-				int port = VCHIQ_MSG_DSTPORT(msgid);
-
-				if ((port == service->localport) &&
-					(msgid & VCHIQ_MSGID_CLAIMED)) {
-					vchiq_log_info(vchiq_core_log_level,
-						"  fsi - hdr %pK", header);
-					release_slot(state, slot_info, header,
-						NULL);
-				}
-				pos += calc_stride(header->size);
-				if (pos > VCHIQ_SLOT_SIZE) {
-					vchiq_log_error(vchiq_core_log_level,
-						"fsi - pos %x: header %pK, msgid %x, header->msgid %x, header->size %x",
-						pos, header, msgid,
-						header->msgid, header->size);
-					WARN(1, "invalid slot position\n");
-				}
+		if (slot_info->release_count == slot_info->use_count)
+			continue;
+
+		data = (char *)SLOT_DATA_FROM_INDEX(state, i);
+		end = VCHIQ_SLOT_SIZE;
+		if (data == state->rx_data)
+			/*
+			 * This buffer is still being read from - stop
+			 * at the current read position
+			 */
+			end = state->rx_pos & VCHIQ_SLOT_MASK;
+
+		pos = 0;
+
+		while (pos < end) {
+			struct vchiq_header *header =
+				(struct vchiq_header *)(data + pos);
+			int msgid = header->msgid;
+			int port = VCHIQ_MSG_DSTPORT(msgid);
+
+			if ((port == service->localport) &&
+				(msgid & VCHIQ_MSGID_CLAIMED)) {
+				vchiq_log_info(vchiq_core_log_level,
+					"  fsi - hdr %pK", header);
+				release_slot(state, slot_info, header,
+					NULL);
+			}
+			pos += calc_stride(header->size);
+			if (pos > VCHIQ_SLOT_SIZE) {
+				vchiq_log_error(vchiq_core_log_level,
+					"fsi - pos %x: header %pK, msgid %x, header->msgid %x, header->size %x",
+					pos, header, msgid,
+					header->msgid, header->size);
+				WARN(1, "invalid slot position\n");
 			}
 		}
 	}
-- 
2.7.4


  parent reply	other threads:[~2021-05-15 19:11 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-15 19:10 [PATCH 00/20] staging: vchiq_arm: more code clean-up Stefan Wahren
2021-05-15 19:10 ` [PATCH 01/20] staging: vchiq_core: fix return type of vchiq_init_state Stefan Wahren
2021-05-16  7:27   ` Fabio Aiuto
2021-05-16  9:38     ` Stefan Wahren
2021-05-16 16:54       ` Fabio Aiuto
2021-05-17 11:25       ` Dan Carpenter
2021-05-15 19:10 ` [PATCH 02/20] staging: vchiq_core: drop unnecessary release_count Stefan Wahren
2021-05-15 19:10 ` [PATCH 03/20] staging: vchiq_core: separate postfix increment Stefan Wahren
2021-05-16  7:31   ` Fabio Aiuto
2021-05-15 19:10 ` [PATCH 04/20] staging: vc04_services: remove __VCCOREVER__ Stefan Wahren
2021-05-15 19:10 ` [PATCH 05/20] staging: vchiq_arm: balance braces for if-else statements Stefan Wahren
2021-05-15 19:10 ` [PATCH 06/20] staging: vchiq_core: introduce poll_services_of_group Stefan Wahren
2021-05-15 19:10 ` [PATCH 07/20] staging: vchiq_core: avoid indention in poll_services_of_group Stefan Wahren
2021-05-15 19:10 ` [PATCH 08/20] staging: vchiq_arm: Use define for doorbell irq Stefan Wahren
2021-05-15 19:10 ` [PATCH 09/20] staging: vchiq_arm: drop ftrace-like logging Stefan Wahren
2021-05-15 19:10 ` [PATCH 10/20] staging: vchiq_arm: Prefer kzalloc(sizeof(*waiter)...) Stefan Wahren
2021-05-15 19:10 ` [PATCH 11/20] staging: vchiq_arm: drop non-beneficial comments Stefan Wahren
2021-05-15 19:10 ` [PATCH 12/20] staging: vchiq_arm: add blank line after declarations Stefan Wahren
2021-05-15 19:10 ` [PATCH 13/20] staging: vchiq_arm: re-arrange function header Stefan Wahren
2021-05-15 19:10 ` Stefan Wahren [this message]
2021-05-15 19:10 ` [PATCH 15/20] staging: vchiq_core: fix comment in vchiq_shutdown_internal Stefan Wahren
2021-05-15 19:10 ` [PATCH 16/20] staging: vchiq_arm: make vchiq_shutdown_internal return void Stefan Wahren
2021-05-15 19:10 ` [PATCH 17/20] staging: vchiq_arm: Avoid unnecessary line breaks Stefan Wahren
2021-05-15 19:10 ` [PATCH 18/20] staging: vchiq_core: introduce parse_message Stefan Wahren
2021-05-17 11:49   ` Dan Carpenter
2021-05-17 17:38     ` Stefan Wahren
2021-05-18  7:36       ` Dan Carpenter
2021-05-15 19:10 ` [PATCH 19/20] staging: vchiq_core: introduce defines for close_recvd Stefan Wahren

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