[SCSI] mpt fusion: Fix sparse warnings
List below is output from C=2 sparse compilation, which are fixed with
this patch.
1) mptspi: pg0 is defined in x86 version of include/asm/pgtable.h
2) mptsas: context imbalance in 'mptsas_probe' different lock contexts
for basic block
3) mptbase: from mpt_attach - cast adds address space to expression
4) mptbase: from mpt_do_upload - request[] is bad constant expression
Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 5987f8b..52fb216 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -1452,6 +1452,7 @@
{
MPT_ADAPTER *ioc;
u8 __iomem *mem;
+ u8 __iomem *pmem;
unsigned long mem_phys;
unsigned long port;
u32 msize;
@@ -1576,11 +1577,9 @@
ioc->chip = (SYSIF_REGS __iomem *)mem;
/* Save Port IO values in case we need to do downloadboot */
- {
- u8 *pmem = (u8*)port;
- ioc->pio_mem_phys = port;
- ioc->pio_chip = (SYSIF_REGS __iomem *)pmem;
- }
+ ioc->pio_mem_phys = port;
+ pmem = (u8 __iomem *)port;
+ ioc->pio_chip = (SYSIF_REGS __iomem *)pmem;
pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
mpt_get_product_name(pdev->vendor, pdev->device, revision, ioc->prod_name);
@@ -3103,7 +3102,6 @@
static int
mpt_do_upload(MPT_ADAPTER *ioc, int sleepFlag)
{
- u8 request[ioc->req_sz];
u8 reply[sizeof(FWUploadReply_t)];
FWUpload_t *prequest;
FWUploadReply_t *preply;
@@ -3129,11 +3127,16 @@
return -ENOMEM;
}
- prequest = (FWUpload_t *)&request;
- preply = (FWUploadReply_t *)&reply;
+ prequest = (sleepFlag == NO_SLEEP) ? kzalloc(ioc->req_sz, GFP_ATOMIC) :
+ kzalloc(ioc->req_sz, GFP_KERNEL);
+ if (!prequest) {
+ dinitprintk(ioc, printk(MYIOC_s_DEBUG_FMT "fw upload failed "
+ "while allocating memory \n", ioc->name));
+ mpt_free_fw_memory(ioc);
+ return -ENOMEM;
+ }
- /* Destination... */
- memset(prequest, 0, ioc->req_sz);
+ preply = (FWUploadReply_t *)&reply;
reply_sz = sizeof(reply);
memset(preply, 0, reply_sz);
@@ -3145,11 +3148,12 @@
ptcsge->DetailsLength = 12;
ptcsge->Flags = MPI_SGE_FLAGS_TRANSACTION_ELEMENT;
ptcsge->ImageSize = cpu_to_le32(sz);
+ ptcsge++;
sgeoffset = sizeof(FWUpload_t) - sizeof(SGE_MPI_UNION) + sizeof(FWUploadTCSGE_t);
flagsLength = MPT_SGE_FLAGS_SSIMPLE_READ | sz;
- mpt_add_sge(&request[sgeoffset], flagsLength, ioc->cached_fw_dma);
+ mpt_add_sge((char *)ptcsge, flagsLength, ioc->cached_fw_dma);
sgeoffset += sizeof(u32) + sizeof(dma_addr_t);
dinitprintk(ioc, printk(MYIOC_s_INFO_FMT ": Sending FW Upload (req @ %p) sgeoffset=%d \n",
@@ -3184,6 +3188,7 @@
ioc->name));
mpt_free_fw_memory(ioc);
}
+ kfree(prequest);
return cmdStatus;
}
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index adbdbd4..4c641c6 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -3224,6 +3224,7 @@
hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
if (!hd->ScsiLookup) {
error = -ENOMEM;
+ spin_unlock_irqrestore(&ioc->FreeQlock, flags);
goto out_mptsas_probe;
}
diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c
index 3c24928e..ed6a778 100644
--- a/drivers/message/fusion/mptspi.c
+++ b/drivers/message/fusion/mptspi.c
@@ -516,8 +516,8 @@
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct _MPT_SCSI_HOST *hd = shost_priv(shost);
struct _MPT_ADAPTER *ioc = hd->ioc;
- struct _CONFIG_PAGE_SCSI_DEVICE_0 *pg0;
- dma_addr_t pg0_dma;
+ struct _CONFIG_PAGE_SCSI_DEVICE_0 *spi_dev_pg0;
+ dma_addr_t spi_dev_pg0_dma;
int size;
struct _x_config_parms cfg;
struct _CONFIG_PAGE_HEADER hdr;
@@ -535,8 +535,8 @@
size += 2048;
*/
- pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg0_dma, GFP_KERNEL);
- if (pg0 == NULL) {
+ spi_dev_pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &spi_dev_pg0_dma, GFP_KERNEL);
+ if (spi_dev_pg0 == NULL) {
starget_printk(MYIOC_s_ERR_FMT, starget,
"dma_alloc_coherent for parameters failed\n", ioc->name);
return -EINVAL;
@@ -552,7 +552,7 @@
memset(&cfg, 0, sizeof(cfg));
cfg.cfghdr.hdr = &hdr;
- cfg.physAddr = pg0_dma;
+ cfg.physAddr = spi_dev_pg0_dma;
cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
cfg.dir = 0;
cfg.pageAddr = starget->id;
@@ -562,12 +562,12 @@
goto out_free;
}
err = 0;
- memcpy(pass_pg0, pg0, size);
+ memcpy(pass_pg0, spi_dev_pg0, size);
- mptspi_print_read_nego(hd, starget, le32_to_cpu(pg0->NegotiatedParameters));
+ mptspi_print_read_nego(hd, starget, le32_to_cpu(spi_dev_pg0->NegotiatedParameters));
out_free:
- dma_free_coherent(&ioc->pcidev->dev, size, pg0, pg0_dma);
+ dma_free_coherent(&ioc->pcidev->dev, size, spi_dev_pg0, spi_dev_pg0_dma);
return err;
}
@@ -594,11 +594,11 @@
static void mptspi_read_parameters(struct scsi_target *starget)
{
int nego;
- struct _CONFIG_PAGE_SCSI_DEVICE_0 pg0;
+ struct _CONFIG_PAGE_SCSI_DEVICE_0 spi_dev_pg0;
- mptspi_read_spi_device_pg0(starget, &pg0);
+ mptspi_read_spi_device_pg0(starget, &spi_dev_pg0);
- nego = le32_to_cpu(pg0.NegotiatedParameters);
+ nego = le32_to_cpu(spi_dev_pg0.NegotiatedParameters);
spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0;
spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0;