[patch] megaraid: fix CONFIG_PROC_FS compile errors

[David Rientjes <rientjes@google.com>]

Only declare mega_proc_dir_entry() in CONFIG_PROC_FS.  We should call
mega_create_proc_entry() only in this configuration so make sure it's defined
if we call it.

Only define mega_adapinq() in CONFIG_PROC_FS.  mega_internal_dev_inquiry()
and mega_print_inquiry() were never declared without CONFIG_PROC_FS so
make sure we don't have prototypes for them if we aren't going to define
them.

Move the declaration of 'buf' in mega_remove_one() because we only use it
in the CONFIG_PROC_FS case.

Cc: Neela Kolli <Neela.Kolli@engenio.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Rientjes <rientjes@google.com>
---
 drivers/scsi/megaraid.c |   10 +++++++++-
 drivers/scsi/megaraid.h |    5 +++--
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -84,7 +84,10 @@ MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds i
 
 static int hba_count;
 static adapter_t *hba_soft_state[MAX_CONTROLLERS];
+
+#ifdef CONFIG_PROC_FS
 static struct proc_dir_entry *mega_proc_dir_entry;
+#endif
 
 /* For controller re-ordering */
 static struct mega_hbas mega_hbas[MAX_CONTROLLERS];
@@ -4342,6 +4345,7 @@ mega_support_cluster(adapter_t *adapter)
 	return 0;
 }
 
+#ifdef CONFIG_PROC_FS
 
 /**
  * mega_adapinq()
@@ -4448,6 +4452,7 @@ mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt,
 	return rval;
 }
 
+#endif
 
 /**
  * mega_internal_command()
@@ -4890,7 +4895,9 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	pci_set_drvdata(pdev, host);
 
+#ifdef CONFIG_PROC_FS
 	mega_create_proc_entry(hba_count, mega_proc_dir_entry);
+#endif
 
 	error = scsi_add_host(host, &pdev->dev);
 	if (error)
@@ -4965,7 +4972,6 @@ megaraid_remove_one(struct pci_dev *pdev)
 {
 	struct Scsi_Host *host = pci_get_drvdata(pdev);
 	adapter_t *adapter = (adapter_t *)host->hostdata;
-	char	buf[12] = { 0 };
 
 	scsi_remove_host(host);
 
@@ -4982,6 +4988,8 @@ megaraid_remove_one(struct pci_dev *pdev)
 
 #ifdef CONFIG_PROC_FS
 	if (adapter->controller_proc_dir_entry) {
+		char buf[12] = { 0 };
+
 		remove_proc_entry("stat", adapter->controller_proc_dir_entry);
 		remove_proc_entry("config",
 				adapter->controller_proc_dir_entry);
diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h
--- a/drivers/scsi/megaraid.h
+++ b/drivers/scsi/megaraid.h
@@ -1002,7 +1002,9 @@ static int megaraid_reset(Scsi_Cmnd *);
 static int megaraid_abort_and_reset(adapter_t *, Scsi_Cmnd *, int);
 static int megaraid_biosparam(struct scsi_device *, struct block_device *,
 		sector_t, int []);
+#ifdef CONFIG_PROC_FS
 static int mega_print_inquiry(char *, char *);
+#endif
 
 static int mega_build_sglist (adapter_t *adapter, scb_t *scb,
 			      u32 *buffer, u32 *length);
@@ -1040,10 +1042,9 @@ static int proc_rdrv_20(char *, char **, off_t, int, int *, void *);
 static int proc_rdrv_30(char *, char **, off_t, int, int *, void *);
 static int proc_rdrv_40(char *, char **, off_t, int, int *, void *);
 static int proc_rdrv(adapter_t *, char *, int, int);
-#endif
-
 static int mega_adapinq(adapter_t *, dma_addr_t);
 static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t);
+#endif
 
 static int mega_support_ext_cdb(adapter_t *);
 static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *,
-
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