linux-kernel - [PATCH] ide/falconide: Avoid build failure when CONFIG

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Date:   Thu, 10 Jun 2021 19:28:31 +1000
From:   Finn Thain <fthain@...ux-m68k.org>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     "David S. Miller" <davem@...emloft.net>,
        "Michael Schmitz" <schmitzmic@...il.com>,
        linux-m68k@...ts.linux-m68k.org, linux-ide@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] ide/falconide: Avoid build failure when CONFIG_ATARI=n

When building the driver for a q40-only configuration, the atari-only code
has to be elided to avoid a linker error:

m68k-linux-ld: drivers/ide/falconide.o: in function `falconide_get_lock':
falconide.c:(.text+0x1c2): undefined reference to `stdma_lock'
m68k-linux-ld: drivers/ide/falconide.o: in function `falconide_release_lock':
falconide.c:(.text+0x20c): undefined reference to `stdma_release'

Cc: "David S. Miller" <davem@...emloft.net>
Cc: Michael Schmitz <schmitzmic@...il.com>
Cc: linux-m68k@...ts.linux-m68k.org
Reported-by: kernel test robot <lkp@...el.com>
Fixes: 9658506fbf8c ("m68k/q40: Replace q40ide driver with pata_falcon and falconide")
Signed-off-by: Finn Thain <fthain@...ux-m68k.org>
---
This change relates to commit 9658506fbf8c ("m68k/q40: Replace q40ide driver
with pata_falcon and falconide") which is found on the for-5.14/libata branch
in Jens' repo. Therefore this 'fixes' tag is not yet relevant to mainline.
---
 drivers/ide/falconide.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/ide/falconide.c b/drivers/ide/falconide.c
index fce68412b3c9..a73a9dc17e4d 100644
--- a/drivers/ide/falconide.c
+++ b/drivers/ide/falconide.c
@@ -25,6 +25,7 @@
 
 #define DRV_NAME "falconide"
 
+#ifdef CONFIG_ATARI
     /*
      *  falconide_intr_lock is used to obtain access to the IDE interrupt,
      *  which is shared between several drivers.
@@ -49,6 +50,7 @@ static void falconide_get_lock(irq_handler_t handler, void *data)
 		falconide_intr_lock = 1;
 	}
 }
+#endif
 
 static void falconide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
 				 void *buf, unsigned int len)
@@ -92,8 +94,10 @@ static const struct ide_tp_ops falconide_tp_ops = {
 };
 
 static const struct ide_port_info falconide_port_info = {
+#ifdef CONFIG_ATARI
 	.get_lock		= falconide_get_lock,
 	.release_lock		= falconide_release_lock,
+#endif
 	.tp_ops			= &falconide_tp_ops,
 	.host_flags		= IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE |
 				  IDE_HFLAG_NO_DMA,
-- 
2.26.3