From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Oliver O'Halloran <oohall@gmail.com>,
Joel Stanley <joel@jms.id.au>,
Michael Ellerman <mpe@ellerman.id.au>,
Sasha Levin <sashal@kernel.org>,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH AUTOSEL 4.4 01/25] powerpc/powernv/smp: Fix spurious DBG() warning
Date: Mon, 26 Oct 2020 20:10:59 -0400 [thread overview]
Message-ID: <20201027001123.1027642-1-sashal@kernel.org> (raw)
From: Oliver O'Halloran <oohall@gmail.com>
[ Upstream commit f6bac19cf65c5be21d14a0c9684c8f560f2096dd ]
When building with W=1 we get the following warning:
arch/powerpc/platforms/powernv/smp.c: In function ‘pnv_smp_cpu_kill_self’:
arch/powerpc/platforms/powernv/smp.c:276:16: error: suggest braces around
empty body in an ‘if’ statement [-Werror=empty-body]
276 | cpu, srr1);
| ^
cc1: all warnings being treated as errors
The full context is this block:
if (srr1 && !generic_check_cpu_restart(cpu))
DBG("CPU%d Unexpected exit while offline srr1=%lx!\n",
cpu, srr1);
When building with DEBUG undefined DBG() expands to nothing and GCC emits
the warning due to the lack of braces around an empty statement.
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200804005410.146094-2-oohall@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/platforms/powernv/smp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index ad7b1a3dbed09..c605c78a80896 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -41,7 +41,7 @@
#include <asm/udbg.h>
#define DBG(fmt...) udbg_printf(fmt)
#else
-#define DBG(fmt...)
+#define DBG(fmt...) do { } while (0)
#endif
static void pnv_smp_setup_cpu(int cpu)
--
2.25.1
next reply other threads:[~2020-10-27 0:12 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-27 0:10 Sasha Levin [this message]
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 02/25] sparc64: remove mm_cpumask clearing to fix kthread_use_mm race Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 03/25] f2fs: fix to check segment boundary during SIT page readahead Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 04/25] um: change sigio_spinlock to a mutex Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 05/25] xfs: fix realtime bitmap/summary file truncation when growing rt volume Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 06/25] video: fbdev: pvr2fb: initialize variables Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 07/25] ath10k: fix VHT NSS calculation when STBC is enabled Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 08/25] mmc: via-sdmmc: Fix data race bug Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 09/25] printk: reduce LOG_BUF_SHIFT range for H8300 Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 10/25] kgdb: Make "kgdbcon" work properly with "kgdb_earlycon" Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 11/25] USB: adutux: fix debugging Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 12/25] ACPI: Add out of bounds and numa_off protections to pxm_to_node() Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 13/25] dm: change max_io_len() to use blk_max_size_offset() Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 14/25] drivers/net/wan/hdlc_fr: Correctly handle special skb->protocol values Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 15/25] power: supply: test_power: add missing newlines when printing parameters by sysfs Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 16/25] md/bitmap: md_bitmap_get_counter returns wrong blocks Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 17/25] clk: ti: clockdomain: fix static checker warning Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 18/25] net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 19/25] drivers: watchdog: rdc321x_wdt: Fix race condition bugs Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 20/25] ext4: Detect already used quota file early Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 21/25] KVM: PPC: Book3S HV: Do not allocate HPT for a nested guest Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 22/25] gfs2: add validation checks for size of superblock Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 23/25] memory: emif: Remove bogus debugfs error handling Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 24/25] ARM: dts: s5pv210: move PMU node out of clock controller Sasha Levin
2020-10-27 0:11 ` [PATCH AUTOSEL 4.4 25/25] ARM: dts: s5pv210: remove dedicated 'audio-subsystem' node Sasha Levin
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