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From: Willy Tarreau <w@1wt.eu>
To: Denis Efremov <efremov@linux.com>
Cc: Jens Axboe <axboe@kernel.dk>,
	linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
	Willy Tarreau <w@1wt.eu>, Ian Molton <spyro@f2s.com>,
	Russell King <linux@armlinux.org.uk>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: [PATCH v2 1/6] floppy: remove dead code for drives scanning on ARM
Date: Sun,  1 Mar 2020 20:55:50 +0100	[thread overview]
Message-ID: <20200301195555.11154-2-w@1wt.eu> (raw)
In-Reply-To: <20200301195555.11154-1-w@1wt.eu>

On ARM, function fd_scandrives pre-dates Git era, is #ifed 0 out, not
used, and cannot even compile since it references an fdc variable that's
not declared anywhere (supposed to be the global one that we're turning
to current_fdc apparently).

There was also an ifdefde out include of mach/floppy.h that does not
exist anymore either. Let's get rid of them since they complicate the
fixing of the driver.

Cc: Ian Molton <spyro@f2s.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
---
 arch/arm/include/asm/floppy.h | 51 -------------------------------------------
 1 file changed, 51 deletions(-)

diff --git a/arch/arm/include/asm/floppy.h b/arch/arm/include/asm/floppy.h
index f4fe4d0..4655652 100644
--- a/arch/arm/include/asm/floppy.h
+++ b/arch/arm/include/asm/floppy.h
@@ -8,9 +8,6 @@
  */
 #ifndef __ASM_ARM_FLOPPY_H
 #define __ASM_ARM_FLOPPY_H
-#if 0
-#include <mach/floppy.h>
-#endif
 
 #define fd_outb(val,port)			\
 	do {					\
@@ -69,54 +66,6 @@ do {										\
 	outb(new_dor, FD_DOR);							\
 } while (0)
 
-/*
- * Someday, we'll automatically detect which drives are present...
- */
-static inline void fd_scandrives (void)
-{
-#if 0
-	int floppy, drive_count;
-
-	fd_disable_irq();
-	raw_cmd = &default_raw_cmd;
-	raw_cmd->flags = FD_RAW_SPIN | FD_RAW_NEED_SEEK;
-	raw_cmd->track = 0;
-	raw_cmd->rate = ?;
-	drive_count = 0;
-	for (floppy = 0; floppy < 4; floppy ++) {
-		current_drive = drive_count;
-		/*
-		 * Turn on floppy motor
-		 */
-		if (start_motor(redo_fd_request))
-			continue;
-		/*
-		 * Set up FDC
-		 */
-		fdc_specify();
-		/*
-		 * Tell FDC to recalibrate
-		 */
-		output_byte(FD_RECALIBRATE);
-		LAST_OUT(UNIT(floppy));
-		/* wait for command to complete */
-		if (!successful) {
-			int i;
-			for (i = drive_count; i < 3; i--)
-				floppy_selects[fdc][i] = floppy_selects[fdc][i + 1];
-			floppy_selects[fdc][3] = 0;
-			floppy -= 1;
-		} else
-			drive_count++;
-	}
-#else
-	floppy_selects[0][0] = 0x10;
-	floppy_selects[0][1] = 0x21;
-	floppy_selects[0][2] = 0x23;
-	floppy_selects[0][3] = 0x33;
-#endif
-}
-
 #define FDC1 (0x3f0)
 
 #define FLOPPY0_TYPE 4
-- 
2.9.0


  reply	other threads:[~2020-03-01 19:57 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-01 19:55 [PATCH v2 0/6] floppy: make use of the local/global fdc explicit Willy Tarreau
2020-03-01 19:55 ` Willy Tarreau [this message]
2020-03-01 19:55 ` [PATCH v2 2/6] floppy: remove incomplete support for second FDC from ARM code Willy Tarreau
2020-03-01 19:55 ` [PATCH v2 3/6] floppy: prepare ARM code to simplify base address separation Willy Tarreau
2020-03-01 19:55 ` [PATCH v2 4/6] floppy: introduce new functions fdc_inb() and fdc_outb() Willy Tarreau
2020-03-01 19:55 ` [PATCH v2 5/6] floppy: separate the FDC's base address from its registers Willy Tarreau
2020-03-01 19:55 ` [PATCH v2 6/6] floppy: rename the global "fdc" variable to "current_fdc" Willy Tarreau
2020-03-01 20:33 ` [PATCH v2 0/6] floppy: make use of the local/global fdc explicit Joe Perches
2020-03-01 21:20   ` Willy Tarreau
2020-03-08 13:12 ` Denis Efremov

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