[PATCH] hamradio: baycom_epp: Do not use x86-specific rdtsc()
From: Borislav Petkov <bp@alien8.de>
Date: 2022-12-18 12:04:23
Also in:
linux-hams, lkml
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: "Borislav Petkov (AMD)" <bp@alien8.de> Use get_cycles() which is provided by pretty much every arch. The UML build works too because get_cycles() is a simple "return 0;" because the rdtsc() is optimized away there. Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> --- drivers/net/hamradio/baycom_epp.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/drivers/net/hamradio/baycom_epp.c b/drivers/net/hamradio/baycom_epp.c
index bd3b0c2655a2..83ff882f5d97 100644
--- a/drivers/net/hamradio/baycom_epp.c
+++ b/drivers/net/hamradio/baycom_epp.c@@ -623,16 +623,10 @@ static int receive(struct net_device *dev, int cnt) /* --------------------------------------------------------------------- */ -#if defined(__i386__) && !defined(CONFIG_UML) -#include <asm/msr.h> #define GETTICK(x) \ ({ \ - if (boot_cpu_has(X86_FEATURE_TSC)) \ - x = (unsigned int)rdtsc(); \ + x = (unsigned int)get_cycles(); \ }) -#else /* __i386__ && !CONFIG_UML */ -#define GETTICK(x) -#endif /* __i386__ && !CONFIG_UML */ static void epp_bh(struct work_struct *work) {
--
2.35.1