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From: Yinghai Lu <yinghai@kernel.org>
To: Bjorn Helgaas <bhelgaas@google.com>,
	David Miller <davem@davemloft.net>,
	David Ahern <david.ahern@oracle.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Wei Yang <weiyang@linux.vnet.ibm.com>, TJ <linux@iam.tj>,
	Yijing Wang <wangyijing@huawei.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	Yinghai Lu <yinghai@kernel.org>
Subject: [PATCH 07/36] PCI: Remove duplicated code for resource sorting
Date: Mon,  6 Jul 2015 16:38:57 -0700	[thread overview]
Message-ID: <1436225966-27247-8-git-send-email-yinghai@kernel.org> (raw)
In-Reply-To: <1436225966-27247-1-git-send-email-yinghai@kernel.org>

Now __sort_resources, and pdev_sort_resources all have sorting
code.

We can use __sort_resources calling and remove related code in
pdev_sort_resources.
As we are going to call __sort_resources several places, so choose to
keep __sort_resources instead.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
 drivers/pci/setup-bus.c | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 81f6bc4..a7dbf54 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -210,9 +210,8 @@ static void pdev_sort_resources(struct pci_dev *dev,
 
 	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
 		struct resource *r;
-		struct pci_dev_resource *dev_res, *tmp;
+		struct pci_dev_resource *tmp;
 		resource_size_t r_align;
-		struct list_head *n;
 
 		r = &dev->resource[i];
 
@@ -235,22 +234,7 @@ static void pdev_sort_resources(struct pci_dev *dev,
 		tmp->res = r;
 		tmp->dev = dev;
 
-		/* fallback is smallest one or list is empty*/
-		n = head;
-		list_for_each_entry(dev_res, head, list) {
-			resource_size_t align;
-
-			align = __pci_resource_alignment(dev_res->dev,
-							 dev_res->res,
-							 realloc_head);
-
-			if (r_align > align) {
-				n = &dev_res->list;
-				break;
-			}
-		}
-		/* Insert it just before n*/
-		list_add_tail(&tmp->list, n);
+		list_add_tail(&tmp->list, head);
 	}
 }
 
@@ -553,9 +537,9 @@ static void __assign_resources_sorted(struct list_head *head,
 	}
 	free_list(&save_head);
 
+requested_and_reassign:
 	__sort_resources(head);
 
-requested_and_reassign:
 	/* Satisfy the must-have resource requests */
 	assign_requested_resources_sorted(head, fail_head);
 
-- 
1.8.4.5


  parent reply	other threads:[~2015-07-07  0:40 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-06 23:38 [PATCH 00/36] PCI: Resource allocation cleanup for v4.3 Yinghai Lu
2015-07-06 23:38 ` [PATCH 01/36] PCI: Cleanup res_to_dev_res() printout for addon resources Yinghai Lu
2015-07-06 23:38 ` [PATCH 02/36] PCI: Reuse res_to_dev_res in reassign_resources_sorted Yinghai Lu
2015-07-06 23:38 ` [PATCH 03/36] PCI: Use correct align for optional only resources during sorting for resource allocation Yinghai Lu
2015-07-06 23:38 ` [PATCH 04/36] PCI: Optimize bus align/size calculation during sizing Yinghai Lu
2015-07-06 23:38 ` [PATCH 05/36] PCI: Optimize bus align/size calculation for optional " Yinghai Lu
2015-07-06 23:38 ` [PATCH 06/36] PCI: Reorder resources list for must/optional resources Yinghai Lu
2015-07-06 23:38 ` Yinghai Lu [this message]
2015-07-06 23:38 ` [PATCH 08/36] PCI: Rename pdev_sort_resources to pdev_check_resources Yinghai Lu
2015-07-06 23:38 ` [PATCH 09/36] PCI: Treat ROM resource as optional during realloc Yinghai Lu
2015-07-06 23:39 ` [PATCH 10/36] PCI: Add debug printout during releasing partial must/optinal assigned resources Yinghai Lu
2015-07-06 23:39 ` [PATCH 11/36] PCI: Simplify res reference using in __assign_resourcs_sorted Yinghai Lu
2015-07-06 23:39 ` [PATCH 12/36] PCI: Separate realloc list checking after allocation Yinghai Lu
2015-07-06 23:39 ` [PATCH 13/36] PCI: Add __add_to_list() Yinghai Lu
2015-07-06 23:39 ` [PATCH 14/36] PCI: Separate must_add assigning to another function Yinghai Lu
2015-07-06 23:39 ` [PATCH 15/36] PCI: Bail out early if there is no addon Yinghai Lu
2015-07-06 23:39 ` [PATCH 16/36] PCI: Add alt_size allocation support Yinghai Lu
2015-07-06 23:39 ` [PATCH 17/36] PCI: Add support for more than two alt_size under same bridge Yinghai Lu
2015-07-15  3:07   ` Yijing Wang
2015-07-15  5:08     ` Yinghai Lu
2015-07-15  5:16       ` Yijing Wang
2015-07-06 23:39 ` [PATCH 18/36] PCI: Better support for two alt_size Yinghai Lu
2015-07-06 23:39 ` [PATCH 19/36] resources: Split out __allocate_resource() Yinghai Lu
2015-07-06 23:39 ` [PATCH 20/36] resources: Make allocate_resource return just fit resource Yinghai Lu
2015-07-06 23:39 ` [PATCH 21/36] PCI: Check pref compatible bit for mem64 resource of pcie device Yinghai Lu
2015-07-06 23:39 ` [PATCH 22/36] PCI: Only treat non-pef mmio64 as pref if all bridges has MEM_64 Yinghai Lu
2015-07-06 23:39 ` [PATCH 23/36] PCI: Add has_mem64 for host_bridge Yinghai Lu
2015-07-06 23:39 ` [PATCH 24/36] PCI: Only treat non-pef mmio64 as pref if host-bridge has_mem64 Yinghai Lu
2015-07-06 23:39 ` [PATCH 25/36] PCI: Restore pref mmio allocation logic for hostbridge without mmio64 Yinghai Lu
2015-07-06 23:39 ` [PATCH 26/36] sparc/PCI: Add mem64 resource parsing for root bus Yinghai Lu
2015-07-06 23:39 ` [PATCH 27/36] sparc/PCI: Add IORESOURCE_MEM_64 for 64-bit resource in of parsing Yinghai Lu
2015-07-06 23:39 ` [PATCH 28/36] powerpc/PCI: " Yinghai Lu
2015-07-06 23:39 ` [PATCH 29/36] of/PCI: Add IORESOURCE_MEM_64 for 64-bit resource Yinghai Lu
2015-07-10 20:21   ` Rob Herring
2015-07-06 23:39 ` [PATCH 30/36] PCI: Treat optional as must in first try for bridge rescan Yinghai Lu
2015-07-06 23:39 ` [PATCH 31/36] PCI: Get new realloc size for bridge for last try Yinghai Lu
2015-07-06 23:39 ` [PATCH 32/36] PCI: Don't release sibiling bridge resources during hotplug Yinghai Lu
2015-07-06 23:39 ` [PATCH 33/36] PCI: Don't release fixed resource for realloc Yinghai Lu
2015-07-06 23:39 ` [PATCH 34/36] PCI: Set resource to FIXED for lsi devices Yinghai Lu
2015-07-06 23:39 ` [PATCH 35/36] PCI, x86: Add pci=assign_pref_bars to re-allocate pref bars Yinghai Lu
2015-07-06 23:39 ` [PATCH 36/36] PCI: Don't set flags to 0 when assign resource fail Yinghai Lu
2015-07-09  3:30   ` Wei Yang
2015-07-09  5:01     ` Yinghai Lu
2015-07-09  6:04       ` Wei Yang
2015-07-09 16:20         ` Yinghai Lu
2015-07-10  2:30           ` Wei Yang
2015-07-10  2:48             ` Yinghai Lu
2015-07-10  5:49               ` Yinghai Lu
2015-07-11  0:03                 ` Wei Yang
2015-07-11  0:42                   ` Yinghai Lu
2015-07-11  1:37                     ` Wei Yang

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