[PATCH] m68k/atari: atari_scsi.c - use m68k_realnum_memory for FastRAM test

From: Michael Schmitz <schmitzmic@gmail.com>
To: linux-m68k@vger.kernel.org, fthain@telegraphics.com.au
Cc: geert@linux-m68k.org, cts@debian.org, linux-scsi@vger.kernel.org,
	Michael Schmitz <schmitzmic@gmail.com>
Subject: [PATCH] m68k/atari: atari_scsi.c - use m68k_realnum_memory for FastRAM test
Date: Mon,  5 Jun 2017 19:37:59 +1200	[thread overview]
Message-ID: <1496648279-15702-1-git-send-email-schmitzmic@gmail.com> (raw)

m68k_num_memory is unsuitable to test for the presence of FastRAM
on CT60 if the kernel is located in FastRAM: in arch/m68k/mm/motorola.c
the ST-RAM chunk is skipped and m68k_num_memory is decremented in this
case. m68k_realnum_memory still contains the actual number of RAM chunks
so use that.

Tested by Christian Steiges on his Falcon with kernel loaded in FastRAM
- could you please reply with your Tested-by tag, Christian?

Signed-off-by: Michael Schmitz <schmitzmic@gmail.com>
---
 drivers/scsi/atari_scsi.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/atari_scsi.c b/drivers/scsi/atari_scsi.c
index f792420..a75feeb 100644
--- a/drivers/scsi/atari_scsi.c
+++ b/drivers/scsi/atari_scsi.c
@@ -776,7 +776,7 @@ static int __init atari_scsi_probe(struct platform_device *pdev)
 	 * from/to alternative Ram.
 	 */
 	if (ATARIHW_PRESENT(ST_SCSI) && !ATARIHW_PRESENT(EXTD_DMA) &&
-	    m68k_num_memory > 1) {
+	    m68k_realnum_memory > 1) {
 		atari_dma_buffer = atari_stram_alloc(STRAM_BUFFER_SIZE, "SCSI");
 		if (!atari_dma_buffer) {
 			pr_err(PFX "can't allocate ST-RAM double buffer\n");
-- 
1.7.0.4
