Hi all,
After merging the char-misc tree, today's linux-next build (x86_64
allmodconfig) failed like this:
drivers/hv/hv.c: In function 'read_hv_clock_tsc':
drivers/hv/hv.c:154:4: error: implicit declaration of function 'rdtscll' [-Werror=implicit-function-declaration]
rdtscll(cur_tsc);
^
Caused by commit
ca9357bd26c2 ("Drivers: hv: vmbus: Implement a clocksource based on the TSC page")
interacting with commits
87be28aaf145 ("x86/asm/tsc: Replace rdtscll() with native_read_tsc()")
4ea1636b04db ("x86/asm/tsc: Rename native_read_tsc() to rdtsc()")
from the tip tree.
Please consider maintaining API's for a release cycle when changing them.
I have applied the following merge fix patch:
From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Fri, 7 Aug 2015 16:21:32 +1000
Subject: [PATCH] Drivers: hv: vmbus: fix for the removal of rdtscll()
Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
drivers/hv/hv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 6341be8739ae..335064f01c37 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -151,7 +151,7 @@ static cycle_t read_hv_clock_tsc(struct clocksource *arg)
u64 scale = tsc_pg->tsc_scale;
s64 offset = tsc_pg->tsc_offset;
- rdtscll(cur_tsc);
+ cur_tsc = rdtsc();
/* current_tick = ((cur_tsc *scale) >> 64) + offset */
asm("mulq %3"
: "=d" (current_tick), "=a" (tmp)
--
2.5.0
--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
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