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Fri, 07 Feb 2025 03:08:10 -0800 (PST) From: Breno Leitao Date: Fri, 07 Feb 2025 03:06:42 -0800 Subject: [PATCH] kselftest/arm64: Fix uninitialized variable warning in FPMR test Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250207-arm_fix_selftest-v1-1-0d6eeb04299e@debian.org> X-B4-Tracking: v=1; b=H4sIAELppWcC/x3MUQqDMBAFwKss79tAjNjSXKUUifrSLlRbsiKCe HfBOcDsMBalIcqOwlVNfzOi1JVg+KT5TacjoiD40Prg7y6Vqcu6dcZvXmiLI8Nj7IemSf6GSvA vzLpd5fN1HCfBGjmnYgAAAA== X-Change-ID: 20250207-arm_fix_selftest-ee29dbc33a06 To: Catalin Marinas , Will Deacon , Shuah Khan Cc: linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, broonie@kernel.org, Breno Leitao X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1680; i=leitao@debian.org; h=from:subject:message-id; bh=FXr2YRk6o0W+K1SCzkVuQ0zPA5u33Pz/k+U6e+ZtLAw=; b=owEBbQKS/ZANAwAIATWjk5/8eHdtAcsmYgBnpemZuPdqekyA08fFjtglkBR14jqQw3Uj6Uk0V EAK6v/62DqJAjMEAAEIAB0WIQSshTmm6PRnAspKQ5s1o5Of/Hh3bQUCZ6XpmQAKCRA1o5Of/Hh3 bX/WD/4rUdj3lsA1jPbgX6PH+CiNh71KZM+IKE24sNk32JMUs0ekeLZIqNltEL+R9Vt33IPTvjs 5EWNTIH0TnOI3gDcfbUYRqdBgGivRJ6sYdUYDHMqUhR5/7V+Q4/9uKwsludJfdhkIKvA/CpmGzV L+9NUd8J6KOQ2nlgOYGxCKSJrkvdB6CnnA5sHNCzv103BMpU8E+OlKCIWsZANEo9gEOr/0BhHTg WoZ79a7/0lFzdMWTrSiTlbboRvuuedd0tQdRqUGkIXtexuz8pQ0KK6ePj9BhZqOYnDkVsDbMppC dYcC62SFQRmj++AsQ1KUSJFQAjzBP5Y/GgG1PX+0iFFp792oiAeMxloI03+V/2VdY9iyHA3WmIj I8qUVxtvyZR5Wdc4V1VBPHwtJpcGwh6aJIOg9azqse2usQP1At+Wb+LuQCO8GOy6QtOVb6RX9Rw pLIio064AMoa4Fe8J4IEbNtqv+gqPIKfBLI7vQ7tEf0kNw5RQm6P32Z6q1ipgOfsfuHO41srbTQ ZlYpIogzy7ClYAN4ka6zqpqX35RyKi4FI76SZ56LXT386ReWB/l/O/zKb+JrjdeZ/+AJ0JRScDx VZAWI+tTR5dqYaDwPOUbSoHfZY8oHnrxXayVAc9IWftE3fhOjWQEp8HAo29XsN4dThRBfPniJR6 zLrtjTZlKFbZN7g== X-Developer-Key: i=leitao@debian.org; a=openpgp; fpr=AC8539A6E8F46702CA4A439B35A3939FFC78776D Fix compiler warning about potentially uninitialized orig_fpmr variable: testcases/fpmr_siginfo.c: In function ‘fpmr_present’: testcases/fpmr_siginfo.c:68:25: warning: ‘orig_fpmr’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(stderr, "FPMR in frame is %llx, was %llx\n", ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fpmr_ctx->fpmr, orig_fpmr); ~~~~~~~~~~~~~~~~~~~~~~~~~~ Initialize orig_fpmr to 0 to resolve the warning. Signed-off-by: Breno Leitao --- tools/testing/selftests/arm64/signal/testcases/fpmr_siginfo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- base-commit: 0d5248724ed8bc68c867c4c65dda625277f68fbc change-id: 20250207-arm_fix_selftest-ee29dbc33a06 Best regards, diff --git a/tools/testing/selftests/arm64/signal/testcases/fpmr_siginfo.c b/tools/testing/selftests/arm64/signal/testcases/fpmr_siginfo.c index e9d24685e74194fc4ed1aebdcfd4c6edd3488e1b..26818860b223d367955d96e12d423fadc304700b 100644 --- a/tools/testing/selftests/arm64/signal/testcases/fpmr_siginfo.c +++ b/tools/testing/selftests/arm64/signal/testcases/fpmr_siginfo.c @@ -40,10 +40,10 @@ int fpmr_present(struct tdescr *td, siginfo_t *si, ucontext_t *uc) { struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context); struct fpmr_context *fpmr_ctx; + __u64 orig_fpmr = 0; size_t offset; bool in_sigframe; bool have_fpmr; - __u64 orig_fpmr; have_fpmr = getauxval(AT_HWCAP2) & HWCAP2_FPMR; if (have_fpmr)