From 3c3a3b4c12bdda8dd098fcdd4499a298548d6f31 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= <khc@pm.waw.pl> Date: Mon, 3 May 2010 23:22:06 +0200 Subject: [PATCH] IXP4xx: Fix qmgr_release_queue() flushing unexpected queue entries. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Queues should be empty when released, if not, there is a safety valve. Make sure the queue is usable after it triggers. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl> --- arch/arm/mach-ixp4xx/ixp4xx_qmgr.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c b/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c index bfdbe4b5a3cc..852f7c9f87d0 100644 --- a/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c +++ b/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c @@ -265,6 +265,11 @@ void qmgr_release_queue(unsigned int queue) qmgr_queue_descs[queue], queue); qmgr_queue_descs[queue][0] = '\x0'; #endif + + while ((addr = qmgr_get_entry(queue))) + printk(KERN_ERR "qmgr: released queue %i not empty: 0x%08X\n", + queue, addr); + __raw_writel(0, &qmgr_regs->sram[queue]); used_sram_bitmap[0] &= ~mask[0]; @@ -275,10 +280,6 @@ void qmgr_release_queue(unsigned int queue) spin_unlock_irq(&qmgr_lock); module_put(THIS_MODULE); - - while ((addr = qmgr_get_entry(queue))) - printk(KERN_ERR "qmgr: released queue %i not empty: 0x%08X\n", - queue, addr); } static int qmgr_init(void) -- GitLab