From: Rosen Penev <rosenp@gmail.com>
Date: Sat, 30 May 2026 00:36:25 +0000 (-0700)
Subject: ata: pata_ep93xx: avoid asm on non ARM
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cde1e86eec1c5de7b83bfb4e3ae26755e61a54d2;p=thirdparty%2Fkernel%2Flinux.git

ata: pata_ep93xx: avoid asm on non ARM

The raw ARM asm delay loop prevents COMPILE_TEST builds on
non-ARM architectures. Guard it with CONFIG_ARM and provide a
cpu_relax() fallback for compilation on other architectures.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
---

diff --git a/drivers/ata/pata_ep93xx.c b/drivers/ata/pata_ep93xx.c
index b2b9e0058333e..f7e87d6af2641 100644
--- a/drivers/ata/pata_ep93xx.c
+++ b/drivers/ata/pata_ep93xx.c
@@ -204,6 +204,7 @@ static void ep93xx_pata_enable_pio(void __iomem *base, int pio_mode)
  */
 static void ep93xx_pata_delay(unsigned long count)
 {
+#ifdef CONFIG_ARM
 	__asm__ volatile (
 		"0:\n"
 		"mov r0, r0\n"
@@ -212,6 +213,10 @@ static void ep93xx_pata_delay(unsigned long count)
 		: "=r" (count)
 		: "0" (count)
 	);
+#else
+	while (count--)
+		cpu_relax();
+#endif
 }
 
 static unsigned long ep93xx_pata_wait_for_iordy(void __iomem *base,