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Date: Tue, 30 Oct 2012 02:41:14 -0700
From: Joe Perches <joe@...ches.com>
To: kbuild test robot <fengguang.wu@...el.com>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: Re: [pci:pci/misc 1/4] drivers/scsi/gdth.c:1111:41: sparse: not an
lvalue
On Tue, 2012-10-30 at 12:02 +0800, kbuild test robot wrote:
> tree: git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git pci/misc
> head: 347593eb10fce5b691551d72cf63f1ea6a533f2a
> commit: 545974a28f786eb0ed42c90b4b5df9605b1d824c [1/4] PCI: Convert pci_resource_<foo> macros to static inlines
>
>
> sparse warnings:
>
> drivers/scsi/gdth.c:2397:31: sparse: incorrect type in assignment (different base types)
> drivers/scsi/gdth.c:2397:31: expected unsigned int [unsigned] [assigned] [usertype] last_block_no
> drivers/scsi/gdth.c:2397:31: got restricted __be32 [usertype] <noident>
> drivers/scsi/gdth.c:2398:27: sparse: incorrect type in assignment (different base types)
> drivers/scsi/gdth.c:2398:27: expected unsigned int [unsigned] [assigned] [usertype] block_length
> drivers/scsi/gdth.c:2398:27: got restricted __be32 [usertype] <noident>
> drivers/scsi/gdth.c:2408:33: sparse: incorrect type in assignment (different base types)
> drivers/scsi/gdth.c:2408:33: expected unsigned long long [unsigned] [usertype] last_block_no
> drivers/scsi/gdth.c:2408:33: got restricted __be64 [usertype] <noident>
> drivers/scsi/gdth.c:2409:33: sparse: incorrect type in assignment (different base types)
> drivers/scsi/gdth.c:2409:33: expected unsigned int [unsigned] [usertype] block_length
> drivers/scsi/gdth.c:2409:33: got restricted __be32 [usertype] <noident>
> drivers/scsi/gdth.c:2504:23: sparse: cast to restricted __be64
> drivers/scsi/gdth.c:2504:23: sparse: cast to restricted __be64
> drivers/scsi/gdth.c:2504:23: sparse: cast to restricted __be64
> drivers/scsi/gdth.c:2504:23: sparse: cast to restricted __be64
> drivers/scsi/gdth.c:2504:23: sparse: cast to restricted __be64
> drivers/scsi/gdth.c:2504:23: sparse: cast to restricted __be64
> drivers/scsi/gdth.c:2504:23: sparse: cast to restricted __be64
> drivers/scsi/gdth.c:2504:23: sparse: cast to restricted __be64
> drivers/scsi/gdth.c:2504:23: sparse: cast to restricted __be64
> drivers/scsi/gdth.c:2504:23: sparse: cast to restricted __be64
> drivers/scsi/gdth.c:2506:24: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2506:24: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2506:24: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2506:24: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2506:24: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2506:24: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2509:23: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2509:23: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2509:23: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2509:23: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2509:23: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2509:23: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2511:24: sparse: cast to restricted __be16
> drivers/scsi/gdth.c:2511:24: sparse: cast to restricted __be16
> drivers/scsi/gdth.c:2511:24: sparse: cast to restricted __be16
> drivers/scsi/gdth.c:2511:24: sparse: cast to restricted __be16
> drivers/scsi/gdth.c:2514:23: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2514:23: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2514:23: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2514:23: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2514:23: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:2514:23: sparse: cast to restricted __be32
> drivers/scsi/gdth.c:445:5: sparse: symbol '__gdth_execute' was not declared. Should it be static?
> + drivers/scsi/gdth.c:1111:41: sparse: not an lvalue
> drivers/scsi/gdth.c: In function 'gdth_init_pci':
> drivers/scsi/gdth.c:1111:34: error: lvalue required as left operand of assignment
> --
> + drivers/staging/telephony/ixj.c:7732:52: sparse: Expected ; at end of statement
> + drivers/staging/telephony/ixj.c:7732:52: sparse: got pci_resource_start
> drivers/staging/telephony/ixj.c: In function 'ixj_probe_pci':
> drivers/staging/telephony/ixj.c:7732:13: warning: assignment makes integer from pointer without a cast [enabled by default]
> drivers/staging/telephony/ixj.c:7732:38: error: expected ';' before 'pci_resource_start'
>
> vim +1111 drivers/scsi/gdth.c
>
> ^1da177e Linus Torvalds 2005-04-16 1095
> ^1da177e Linus Torvalds 2005-04-16 1096 ha->dma64_support = 0;
> ^1da177e Linus Torvalds 2005-04-16 1097
> ^1da177e Linus Torvalds 2005-04-16 1098 } else { /* MPR */
> ^1da177e Linus Torvalds 2005-04-16 1099 TRACE2(("init_pci_mpr() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
> ^1da177e Linus Torvalds 2005-04-16 1100 ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6m_dpram_str));
> ^1da177e Linus Torvalds 2005-04-16 1101 if (ha->brd == NULL) {
> ^1da177e Linus Torvalds 2005-04-16 1102 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
> ^1da177e Linus Torvalds 2005-04-16 1103 return 0;
> ^1da177e Linus Torvalds 2005-04-16 1104 }
> ^1da177e Linus Torvalds 2005-04-16 1105
> ^1da177e Linus Torvalds 2005-04-16 1106 /* manipulate config. space to enable DPMEM, start RP controller */
> 4c9c8d78 Jeff Garzik 2008-02-15 1107 pci_read_config_word(pdev, PCI_COMMAND, &command);
> ^1da177e Linus Torvalds 2005-04-16 1108 command |= 6;
> 4c9c8d78 Jeff Garzik 2008-02-15 1109 pci_write_config_word(pdev, PCI_COMMAND, command);
> 4c9c8d78 Jeff Garzik 2008-02-15 1110 if (pci_resource_start(pdev, 8) == 1UL)
> 4c9c8d78 Jeff Garzik 2008-02-15 @1111 pci_resource_start(pdev, 8) = 0UL;
> ^1da177e Linus Torvalds 2005-04-16 1112 i = 0xFEFF0001UL;
> 4c9c8d78 Jeff Garzik 2008-02-15 1113 pci_write_config_dword(pdev, PCI_ROM_ADDRESS, i);
> ^1da177e Linus Torvalds 2005-04-16 1114 gdth_delay(1);
> 4c9c8d78 Jeff Garzik 2008-02-15 1115 pci_write_config_dword(pdev, PCI_ROM_ADDRESS,
> 4c9c8d78 Jeff Garzik 2008-02-15 1116 pci_resource_start(pdev, 8));
> ^1da177e Linus Torvalds 2005-04-16 1117
> ^1da177e Linus Torvalds 2005-04-16 1118 dp6m_ptr = ha->brd;
> ^1da177e Linus Torvalds 2005-04-16 1119
Probably this is necessary, though it seems a hack-around.
---
drivers/scsi/gdth.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 5d72274..148827f 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -1107,8 +1107,8 @@ static int __devinit gdth_init_pci(struct pci_dev *pdev, gdth_pci_str *pcistr,
pci_read_config_word(pdev, PCI_COMMAND, &command);
command |= 6;
pci_write_config_word(pdev, PCI_COMMAND, command);
- if (pci_resource_start(pdev, 8) == 1UL)
- pci_resource_start(pdev, 8) = 0UL;
+ if (pdev->resource[8].start == 1UL)
+ pdev->resource[8].start = 0UL;
i = 0xFEFF0001UL;
pci_write_config_dword(pdev, PCI_ROM_ADDRESS, i);
gdth_delay(1);
--
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