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authorKevin Hilman <khilman@linaro.org>2015-08-14 09:36:42 -0700
committerKevin Hilman <khilman@linaro.org>2015-08-14 09:36:42 -0700
commit07818b5b1ba0f494a7255ab634bad2dd2b908ed0 (patch)
treefb1045fb0f610b29c3a631bcd22df69ca095e241 /arch/arc
parent65fa7c7f66d9a33fe13e426f86b8bb8824334a92 (diff)
parent78fb9f4236d9077fb343fb5a4e55fe27075e9a1d (diff)
Merge tag 'v3.10.86' into linux-linaro-lsk-v3.10lsk-v3.10-15.08
This is the 3.10.86 stable release * tag 'v3.10.86': (132 commits) Linux 3.10.86 efi: fix 32bit kernel boot failed problem using efi iscsi-target: Fix iser explicit logout TX kthread leak iscsi-target: Fix use-after-free during TPG session shutdown vhost: actually track log eventfd file rds: rds_ib_device.refcount overflow xhci: prevent bus_suspend if SS port resuming in phase 1 xhci: report U3 when link is in resume state xhci: Calculate old endpoints correctly on device reset usb-storage: ignore ZTE MF 823 card reader in mode 0x1225 ata: pmp: add quirk for Marvell 4140 SATA PMP blkcg: fix gendisk reference leak in blkg_conf_prep() Input: usbtouchscreen - avoid unresponsive TSC-30 touch screen tile: use free_bootmem_late() for initrd md/raid1: fix test for 'was read error from last working device'. mmc: sdhci-pxav3: fix platform_data is not initialized mmc: sdhci-esdhc: Make 8BIT bus work mac80211: clear subdir_stations when removing debugfs st: null pointer dereference panic caused by use after kref_put by st_open ALSA: hda - Fix MacBook Pro 5,2 quirk ...
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/include/asm/cmpxchg.h9
-rw-r--r--arch/arc/include/asm/ptrace.h2
2 files changed, 6 insertions, 5 deletions
diff --git a/arch/arc/include/asm/cmpxchg.h b/arch/arc/include/asm/cmpxchg.h
index 03cd6894855d..90de5c528da2 100644
--- a/arch/arc/include/asm/cmpxchg.h
+++ b/arch/arc/include/asm/cmpxchg.h
@@ -25,10 +25,11 @@ __cmpxchg(volatile void *ptr, unsigned long expected, unsigned long new)
" scond %3, [%1] \n"
" bnz 1b \n"
"2: \n"
- : "=&r"(prev)
- : "r"(ptr), "ir"(expected),
- "r"(new) /* can't be "ir". scond can't take limm for "b" */
- : "cc");
+ : "=&r"(prev) /* Early clobber, to prevent reg reuse */
+ : "r"(ptr), /* Not "m": llock only supports reg direct addr mode */
+ "ir"(expected),
+ "r"(new) /* can't be "ir". scond can't take LIMM for "b" */
+ : "cc", "memory"); /* so that gcc knows memory is being written here */
return prev;
}
diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h
index 2046a89a57cf..78485493639a 100644
--- a/arch/arc/include/asm/ptrace.h
+++ b/arch/arc/include/asm/ptrace.h
@@ -83,7 +83,7 @@ struct callee_regs {
long r13;
};
-#define instruction_pointer(regs) ((regs)->ret)
+#define instruction_pointer(regs) (unsigned long)((regs)->ret)
#define profile_pc(regs) instruction_pointer(regs)
/* return 1 if user mode or 0 if kernel mode */