From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Tue, 13 Sep 2005 08:25:04 +0000 (-0700)
Subject: [PATCH] ide: clean up the garbage in eighty_ninty_three
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d7d7634c0f021d7d7ed781680d2c88940fc5fee8;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

[PATCH] ide: clean up the garbage in eighty_ninty_three

Replace the foot long pile of festering garbage in eighty_ninty_three with
some actual clean code.  All the ifdefs are fixed and havent changed since
2.4

Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index b443b04a4c5..0b0aa4f5162 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -601,44 +601,15 @@ EXPORT_SYMBOL(ide_wait_stat);
  */
 u8 eighty_ninty_three (ide_drive_t *drive)
 {
-#if 0
-	if (!HWIF(drive)->udma_four)
+	if(HWIF(drive)->udma_four == 0)
+		return 0;
+	if (!(drive->id->hw_config & 0x6000))
 		return 0;
-
-	if (drive->id->major_rev_num) {
-		int hssbd = 0;
-		int i;
-		/*
-		 * Determine highest Supported SPEC
-		 */
-		for (i=1; i<=15; i++)
-			if (drive->id->major_rev_num & (1<<i))
-				hssbd++;
-
-		switch (hssbd) {
-			case 7:
-			case 6:
-			case 5:
-		/* ATA-4 and older do not support above Ultra 33 */
-			default:
-				return 0;
-		}
-	}
-
-	return ((u8) (
-#ifndef CONFIG_IDEDMA_IVB
-		(drive->id->hw_config & 0x4000) &&
-#endif /* CONFIG_IDEDMA_IVB */
-		 (drive->id->hw_config & 0x6000)) ? 1 : 0);
-
-#else
-
-	return ((u8) ((HWIF(drive)->udma_four) &&
 #ifndef CONFIG_IDEDMA_IVB
-			(drive->id->hw_config & 0x4000) &&
+	if(!(drive->id->hw_config & 0x4000))
+		return 0;
 #endif /* CONFIG_IDEDMA_IVB */
-			(drive->id->hw_config & 0x6000)) ? 1 : 0);
-#endif
+	return 1;
 }
 
 EXPORT_SYMBOL(eighty_ninty_three);