From 18de10170df31d34b342612f1c896a16a52f0a5c Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:58 +0200 Subject: [PATCH] ide: allocate ide_hwif_t instances dynamically * Allocate ide_hwif_t instances dynamically and remove ide_hwifs[]. This cuts almost ~14kB from ide-probe.o (x86-32, MAX_HWIFS == 10): text data bss dec hex filename 9140 40 14084 23264 5ae0 drivers/ide/ide-probe.o.before 9169 40 44 9253 2425 drivers/ide/ide-probe.o.after * Remove no longer needed ide_init_port_data() call from ide_unregister(). Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-probe.c | 10 ++++++---- drivers/ide/ide.c | 5 ----- 2 files changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 482f41f..6d57b7c 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -39,8 +39,6 @@ #include #include -static ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */ - /** * generic_id - add a generic drive id * @drive: drive to make an ID block for @@ -1583,15 +1581,18 @@ struct ide_host *ide_host_alloc_all(const struct ide_port_info *d, if (hws[i] == NULL) continue; + hwif = kzalloc(sizeof(*hwif), GFP_KERNEL); + if (hwif == NULL) + continue; + idx = ide_find_port_slot(d); if (idx < 0) { printk(KERN_ERR "%s: no free slot for interface\n", d ? d->name : "ide"); + kfree(hwif); continue; } - hwif = &ide_hwifs[idx]; - ide_init_port_data(hwif, idx); host->ports[i] = hwif; @@ -1755,6 +1756,7 @@ void ide_host_remove(struct ide_host *host) ide_unregister(hwif); ide_free_port_slot(hwif->index); + kfree(hwif); } kfree(host); diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 60c5db1..914942a 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -233,11 +233,6 @@ void ide_unregister(ide_hwif_t *hwif) if (hwif->dma_base) ide_release_dma_engine(hwif); - spin_lock_irq(&ide_lock); - /* restore hwif data to pristine status */ - ide_init_port_data(hwif, hwif->index); - spin_unlock_irq(&ide_lock); - mutex_unlock(&ide_cfg_mtx); } -- 2.7.4