From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Max Filippov <jcmvbkbc@gmail.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.9 12/28] xtensa: fix initialization of pt_regs::syscall in start_thread
Date: Thu, 9 May 2019 20:42:04 +0200 [thread overview]
Message-ID: <20190509181252.776963756@linuxfoundation.org> (raw)
In-Reply-To: <20190509181247.647767531@linuxfoundation.org>
[ Upstream commit 2663147dc7465cb29040a05cc4286fdd839978b5 ]
New pt_regs should indicate that there's no syscall, not that there's
syscall #0. While at it wrap macro body in do/while and parenthesize
macro arguments.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/xtensa/include/asm/processor.h | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h
index 521c1e789e6e0..1fc0154597550 100644
--- a/arch/xtensa/include/asm/processor.h
+++ b/arch/xtensa/include/asm/processor.h
@@ -180,15 +180,18 @@ struct thread_struct {
/* Clearing a0 terminates the backtrace. */
#define start_thread(regs, new_pc, new_sp) \
- memset(regs, 0, sizeof(*regs)); \
- regs->pc = new_pc; \
- regs->ps = USER_PS_VALUE; \
- regs->areg[1] = new_sp; \
- regs->areg[0] = 0; \
- regs->wmask = 1; \
- regs->depc = 0; \
- regs->windowbase = 0; \
- regs->windowstart = 1;
+ do { \
+ memset((regs), 0, sizeof(*(regs))); \
+ (regs)->pc = (new_pc); \
+ (regs)->ps = USER_PS_VALUE; \
+ (regs)->areg[1] = (new_sp); \
+ (regs)->areg[0] = 0; \
+ (regs)->wmask = 1; \
+ (regs)->depc = 0; \
+ (regs)->windowbase = 0; \
+ (regs)->windowstart = 1; \
+ (regs)->syscall = NO_SYSCALL; \
+ } while (0)
/* Forward declaration */
struct task_struct;
--
2.20.1
next prev parent reply other threads:[~2019-05-09 19:09 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-09 18:41 [PATCH 4.9 00/28] 4.9.175-stable review Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.9 01/28] scsi: libsas: fix a race condition when smp task timeout Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.9 02/28] ubsan: Fix nasty -Wbuiltin-declaration-mismatch GCC-9 warnings Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.9 03/28] staging: greybus: power_supply: fix prop-descriptor request size Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.9 04/28] ASoC:soc-pcm:fix a codec fixup issue in TDM case Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.9 05/28] ASoC: nau8810: fix the issue of widget with prefixed name Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.9 06/28] ASoC: cs4270: Set auto-increment bit for register writes Greg Kroah-Hartman
2019-05-09 18:41 ` [PATCH 4.9 07/28] IB/hfi1: Eliminate opcode tests on mr deref Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 08/28] ASoC: tlv320aic32x4: Fix Common Pins Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 09/28] drm/mediatek: Fix an error code in mtk_hdmi_dt_parse_pdata() Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 10/28] perf/x86/intel: Fix handling of wakeup_events for multi-entry PEBS Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 11/28] linux/kernel.h: Use parentheses around argument in u64_to_user_ptr() Greg Kroah-Hartman
2019-05-09 18:42 ` Greg Kroah-Hartman [this message]
2019-05-09 18:42 ` [PATCH 4.9 13/28] scsi: csiostor: fix missing data copy in csio_scsi_err_handler() Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 14/28] drm/mediatek: fix possible object reference leak Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 15/28] virtio-blk: limit number of hw queues by nr_cpu_ids Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 16/28] iommu/amd: Set exclusion range correctly Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 17/28] mm: add try_get_page() helper function Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 18/28] ARM: 8680/1: boot/compressed: fix inappropriate Thumb2 mnemonic for __nop Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 19/28] genirq: Prevent use-after-free and work list corruption Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 20/28] usb: dwc3: Fix default lpm_nyet_threshold value Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 21/28] USB: serial: f81232: fix interrupt worker not stop Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 22/28] usb-storage: Set virt_boundary_mask to avoid SG overflows Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 23/28] scsi: qla2xxx: Fix incorrect region-size setting in optrom SYSFS routines Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 24/28] Bluetooth: hidp: fix buffer overflow Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 25/28] Bluetooth: Align minimum encryption key size for LE and BR/EDR connections Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 26/28] UAS: fix alignment of scatter/gather segments Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 27/28] ASoC: Intel: avoid Oops if DMA setup fails Greg Kroah-Hartman
2019-05-09 18:42 ` [PATCH 4.9 28/28] timer/debug: Change /proc/timer_stats from 0644 to 0600 Greg Kroah-Hartman
2019-05-10 1:27 ` [PATCH 4.9 00/28] 4.9.175-stable review kernelci.org bot
2019-05-10 6:37 ` Naresh Kamboju
2019-05-10 10:16 ` Jon Hunter
2019-05-10 13:34 ` Guenter Roeck
2019-05-10 21:27 ` shuah
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