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Message-Id: <200802190104.47058.bzolnier@gmail.com>
Date: Tue, 19 Feb 2008 01:04:46 +0100
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>
Cc: linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
linuxppc-dev@...abs.org, sfr@...b.auug.org.au, apw@...dowen.org
Subject: Re: [PATCH] next-20080218 build failure at pmac_ide_macio_attach ()
On Monday 18 February 2008, Kamalesh Babulal wrote:
> Hi,
>
> The next-20080218 kernel build fails on the powerpc(s)
>
> drivers/ide/ppc/pmac.c: In function ‘pmac_ide_macio_attach’:
> drivers/ide/ppc/pmac.c:1094: error: conversion to non-scalar type requested
> drivers/ide/ppc/pmac.c: In function ‘pmac_ide_pci_attach’:
> drivers/ide/ppc/pmac.c:1232: error: conversion to non-scalar type requested
> make[3]: *** [drivers/ide/ppc/pmac.o] Error 1
> make[2]: *** [drivers/ide/ppc] Error 2
> make[1]: *** [drivers/ide] Error 2
> make: *** [drivers] Error 2
>
> I Have tested this patch for build failure only.
>
> Signed-off-by: Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>
> ---
> --- linux-2.6.25-rc1/drivers/ide/ppc/pmac.c 2008-02-18 18:41:48.000000000 +0530
> +++ linux-2.6.25-rc1/drivers/ide/ppc/~pmac.c 2008-02-18 19:20:37.000000000 +0530
> @@ -1091,7 +1091,7 @@ pmac_ide_macio_attach(struct macio_dev *
> int irq, rc;
> hw_regs_t hw;
>
> - pmif = (struct pmac_ide_hwif)kzalloc(sizeof(*pmif), GFP_KERNEL);
> + pmif = (struct pmac_ide_hwif*)kzalloc(sizeof(*pmif), GFP_KERNEL);
> if (pmif == NULL)
> return -ENOMEM;
>
> @@ -1229,7 +1229,7 @@ pmac_ide_pci_attach(struct pci_dev *pdev
> return -ENODEV;
> }
>
> - pmif = (struct pmac_ide_hwif)kzalloc(sizeof(*pmif), GFP_KERNEL);
> + pmif = (struct pmac_ide_hwif*)kzalloc(sizeof(*pmif), GFP_KERNEL);
> if (pmif == NULL)
> return -ENOMEM;
>
Thanks, I integrated it with the "guilty" patch to preserve bisectability.
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: [PATCH] ide-pmac: dynamically allocate struct pmac_ide_hwif instances (take 2)
* Dynamically allocate struct pmac_ide_hwif instances in pmac_ide_macio_attach()
and pmac_ide_pci_attach(), then remove no longer needed pmac_ide[].
v2:
* Build fix from Kamalesh Babulal.
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
drivers/ide/ppc/pmac.c | 49 +++++++++++++++++++++++++++++++++----------------
1 file changed, 33 insertions(+), 16 deletions(-)
Index: b/drivers/ide/ppc/pmac.c
===================================================================
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -79,8 +79,6 @@ typedef struct pmac_ide_hwif {
} pmac_ide_hwif_t;
-static pmac_ide_hwif_t pmac_ide[MAX_HWIFS];
-
enum {
controller_ohare, /* OHare based */
controller_heathrow, /* Heathrow/Paddington */
@@ -1094,29 +1092,34 @@ pmac_ide_macio_attach(struct macio_dev *
int i, rc;
hw_regs_t hw;
+ pmif = kzalloc(sizeof(*pmif), GFP_KERNEL);
+ if (pmif == NULL)
+ return -ENOMEM;
+
i = 0;
- while (i < MAX_HWIFS && (ide_hwifs[i].io_ports[IDE_DATA_OFFSET] != 0
- || pmac_ide[i].node != NULL))
+ while (i < MAX_HWIFS && (ide_hwifs[i].io_ports[IDE_DATA_OFFSET] != 0))
++i;
if (i >= MAX_HWIFS) {
printk(KERN_ERR "ide-pmac: MacIO interface attach with no slot\n");
printk(KERN_ERR " %s\n", mdev->ofdev.node->full_name);
- return -ENODEV;
+ rc = -ENODEV;
+ goto out_free_pmif;
}
- pmif = &pmac_ide[i];
hwif = &ide_hwifs[i];
if (macio_resource_count(mdev) == 0) {
printk(KERN_WARNING "ide%d: no address for %s\n",
i, mdev->ofdev.node->full_name);
- return -ENXIO;
+ rc = -ENXIO;
+ goto out_free_pmif;
}
/* Request memory resource for IO ports */
if (macio_request_resource(mdev, 0, "ide-pmac (ports)")) {
printk(KERN_ERR "ide%d: can't request mmio resource !\n", i);
- return -EBUSY;
+ rc = -EBUSY;
+ goto out_free_pmif;
}
/* XXX This is bogus. Should be fixed in the registry by checking
@@ -1166,11 +1169,15 @@ pmac_ide_macio_attach(struct macio_dev *
iounmap(pmif->dma_regs);
macio_release_resource(mdev, 1);
}
- memset(pmif, 0, sizeof(*pmif));
macio_release_resource(mdev, 0);
+ kfree(pmif);
}
return rc;
+
+out_free_pmif:
+ kfree(pmif);
+ return rc;
}
static int
@@ -1223,30 +1230,36 @@ pmac_ide_pci_attach(struct pci_dev *pdev
printk(KERN_ERR "ide-pmac: cannot find MacIO node for Kauai ATA interface\n");
return -ENODEV;
}
+
+ pmif = kzalloc(sizeof(*pmif), GFP_KERNEL);
+ if (pmif == NULL)
+ return -ENOMEM;
+
i = 0;
- while (i < MAX_HWIFS && (ide_hwifs[i].io_ports[IDE_DATA_OFFSET] != 0
- || pmac_ide[i].node != NULL))
+ while (i < MAX_HWIFS && (ide_hwifs[i].io_ports[IDE_DATA_OFFSET] != 0))
++i;
if (i >= MAX_HWIFS) {
printk(KERN_ERR "ide-pmac: PCI interface attach with no slot\n");
printk(KERN_ERR " %s\n", np->full_name);
- return -ENODEV;
+ rc = -ENODEV;
+ goto out_free_pmif;
}
- pmif = &pmac_ide[i];
hwif = &ide_hwifs[i];
if (pci_enable_device(pdev)) {
printk(KERN_WARNING "ide%i: Can't enable PCI device for %s\n",
i, np->full_name);
- return -ENXIO;
+ rc = -ENXIO;
+ goto out_free_pmif;
}
pci_set_master(pdev);
if (pci_request_regions(pdev, "Kauai ATA")) {
printk(KERN_ERR "ide%d: Cannot obtain PCI resources for %s\n",
i, np->full_name);
- return -ENXIO;
+ rc = -ENXIO;
+ goto out_free_pmif;
}
hwif->dev = &pdev->dev;
@@ -1276,11 +1289,15 @@ pmac_ide_pci_attach(struct pci_dev *pdev
/* The inteface is released to the common IDE layer */
pci_set_drvdata(pdev, NULL);
iounmap(base);
- memset(pmif, 0, sizeof(*pmif));
pci_release_regions(pdev);
+ kfree(pmif);
}
return rc;
+
+out_free_pmif:
+ kfree(pmif);
+ return rc;
}
static int
--
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