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From: "Alex Bennée" <alex.bennee@linaro.org>
To: qemu-devel@nongnu.org
Cc: qemu-ppc@nongnu.org, "Mahmoud Mandour" <ma.mandourr@gmail.com>,
	"Thomas Huth" <thuth@redhat.com>,
	"Daniel Henrique Barboza" <danielhb413@gmail.com>,
	"Alistair Francis" <alistair.francis@wdc.com>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Hao Wu" <wuhaotsh@google.com>, "Peter Xu" <peterx@redhat.com>,
	"Warner Losh" <imp@bsdimp.com>,
	"Pierrick Bouvier" <pierrick.bouvier@linaro.org>,
	qemu-arm@nongnu.org, "Harsh Prateek Bora" <harshpb@linux.ibm.com>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Kyle Evans" <kevans@freebsd.org>,
	"Laurent Vivier" <laurent@vivier.eu>,
	"Riku Voipio" <riku.voipio@iki.fi>,
	"Bin Meng" <bmeng.cn@gmail.com>,
	qemu-rust@nongnu.org, "Laurent Vivier" <lvivier@redhat.com>,
	"Liu Zhiwei" <zhiwei_liu@linux.alibaba.com>,
	"Weiwei Li" <liwei1518@gmail.com>,
	qemu-riscv@nongnu.org, "Fabiano Rosas" <farosas@suse.de>,
	"Tyrone Ting" <kfting@nuvoton.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Nicholas Piggin" <npiggin@gmail.com>,
	"Alexandre Iooss" <erdnaxe@crans.org>,
	"Marc-André Lureau" <marcandre.lureau@redhat.com>
Subject: [PATCH 18/18] plugins: fix -Werror=maybe-uninitialized false-positive
Date: Mon,  3 Feb 2025 14:40:48 +0000	[thread overview]
Message-ID: <20250203144048.2131117-19-alex.bennee@linaro.org> (raw)
In-Reply-To: <20250203144048.2131117-1-alex.bennee@linaro.org>

From: Marc-André Lureau <marcandre.lureau@redhat.com>

../contrib/plugins/cache.c:638:9: error: ‘l2_cache’ may be used uninitialized [-Werror=maybe-uninitialized]
  638 |         append_stats_line(rep, l1_dmem_accesses, l1_dmisses,
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Is a false-positive, since cores > 1, so the variable is set in the
above loop.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20250114104820.2613099-1-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 contrib/plugins/cache.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/plugins/cache.c b/contrib/plugins/cache.c
index 7baff86860..7cfd3df249 100644
--- a/contrib/plugins/cache.c
+++ b/contrib/plugins/cache.c
@@ -603,7 +603,7 @@ static int l2_cmp(gconstpointer a, gconstpointer b)
 static void log_stats(void)
 {
     int i;
-    Cache *icache, *dcache, *l2_cache;
+    Cache *icache, *dcache, *l2_cache = NULL;
 
     g_autoptr(GString) rep = g_string_new("core #, data accesses, data misses,"
                                           " dmiss rate, insn accesses,"
-- 
2.39.5



      parent reply	other threads:[~2025-02-03 14:49 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-03 14:40 [PATCH 00/18] maintainer updates for feb25 (qtest, gdbstub, plugins) Alex Bennée
2025-02-03 14:40 ` [PATCH 01/18] tests/docker: replicate the check-rust-tools-nightly CI job Alex Bennée
2025-02-03 14:40 ` [PATCH 02/18] tests/qtest: don't attempt to clock_step while waiting for virtio ISR Alex Bennée
2025-02-03 14:40 ` [PATCH 03/18] tests/qtest: don't step clock at start of npcm7xx periodic IRQ test Alex Bennée
2025-02-03 14:40 ` [PATCH 04/18] tests/qtest: simplify qtest_process_inbuf Alex Bennée
2025-02-06 15:50   ` Peter Maydell
2025-02-03 14:40 ` [PATCH 05/18] tests/qtest: rename qtest_send_prefix and roll-up into qtest_send Alex Bennée
2025-02-03 14:40 ` [PATCH 06/18] tests/qtest: tighten up the checks on clock_step Alex Bennée
2025-02-06 15:52   ` Peter Maydell
2025-02-03 14:40 ` [PATCH 07/18] Revert "util/timer: avoid deadlock when shutting down" Alex Bennée
2025-02-06 15:53   ` Peter Maydell
2025-02-03 14:40 ` [PATCH 08/18] tests/qtest/migration: Add --full option Alex Bennée
2025-02-03 14:40 ` [PATCH 09/18] tests/qtest/migration: Pick smoke tests Alex Bennée
2025-02-03 14:40 ` [PATCH 10/18] gdbstub: Allow the %d placeholder in the socket path Alex Bennée
2025-02-03 14:40 ` [PATCH 11/18] gdbstub: Try unlinking the unix socket before binding Alex Bennée
2025-02-03 14:40 ` [PATCH 12/18] user: Introduce user/signal.h Alex Bennée
2025-02-03 14:40 ` [PATCH 13/18] user: Introduce host_interrupt_signal Alex Bennée
2025-02-03 14:40 ` [PATCH 14/18] osdep: Introduce qemu_kill_thread() Alex Bennée
2025-02-03 14:40 ` [PATCH 15/18] gdbstub: Allow late attachment Alex Bennée
2025-02-03 14:40 ` [PATCH 16/18] docs/user: Document the %d placeholder and suspend=n QEMU_GDB features Alex Bennée
2025-02-03 14:40 ` [PATCH 17/18] tests/tcg: Add late gdbstub attach test Alex Bennée
2025-02-03 14:40 ` Alex Bennée [this message]

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