From: Randy Dunlap rdunlap@infradead.org
[ Upstream commit 0a9bb11a5e298e72b675255a4bb2893513000584 ]
On i386, the baycom_epp driver wants to inspect X86 CPU features (TSC) and then act on that data, but that info is not available when running on UML, so prevent that test and do the default action.
Prevents this build error on UML + i386:
../drivers/net/hamradio/baycom_epp.c: In function ‘epp_bh’: ../drivers/net/hamradio/baycom_epp.c:630:6: error: implicit declaration of function ‘boot_cpu_has’; did you mean ‘get_cpu_mask’? [-Werror=implicit-function-declaration] if (boot_cpu_has(X86_FEATURE_TSC)) \ ^ ../drivers/net/hamradio/baycom_epp.c:658:2: note: in expansion of macro ‘GETTICK’ GETTICK(time1);
Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver") Signed-off-by: Randy Dunlap rdunlap@infradead.org Cc: linux-um@lists.infradead.org Cc: Jeff Dike jdike@addtoit.com Cc: Richard Weinberger richard@nod.at Cc: Anton Ivanov anton.ivanov@cambridgegreys.com Cc: "David S. Miller" davem@davemloft.net Cc: Jakub Kicinski kuba@kernel.org Cc: Thomas Sailer t.sailer@alumni.ethz.ch Cc: linux-hams@vger.kernel.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/hamradio/baycom_epp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/hamradio/baycom_epp.c b/drivers/net/hamradio/baycom_epp.c index 4435a1195194..8ea8d50f81c4 100644 --- a/drivers/net/hamradio/baycom_epp.c +++ b/drivers/net/hamradio/baycom_epp.c @@ -623,16 +623,16 @@ static int receive(struct net_device *dev, int cnt)
/* --------------------------------------------------------------------- */
-#ifdef __i386__ +#if defined(__i386__) && !defined(CONFIG_UML) #include <asm/msr.h> #define GETTICK(x) \ ({ \ if (boot_cpu_has(X86_FEATURE_TSC)) \ x = (unsigned int)rdtsc(); \ }) -#else /* __i386__ */ +#else /* __i386__ && !CONFIG_UML */ #define GETTICK(x) -#endif /* __i386__ */ +#endif /* __i386__ && !CONFIG_UML */
static void epp_bh(struct work_struct *work) {