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Fri, 12 Jul 2024 08:28:59 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.11.0-alpha0-568-g843fbadbe-fm-20240701.003-g843fbadb Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: In-Reply-To: References: Date: Fri, 12 Jul 2024 14:28:38 +0200 From: "Arnd Bergmann" To: "Naresh Kamboju" , "open list" , lkft-triage@lists.linaro.org, "Linux Regressions" Cc: "Dan Carpenter" , "Anders Roxell" , "Sebastian Andrzej Siewior" , "Peter Zijlstra" Subject: Re: next-20240712: task_work.c:(.text+0xc2): undefined reference to `irq_work_queue' Content-Type: text/plain On Fri, Jul 12, 2024, at 14:13, Naresh Kamboju wrote: > The 32-bit arm, mips and powerpc the tinyconfig builds failed on today's > Linux next-20240712 tag with gcc and clang builds. > The defconfig builds pass. > > GOOD: next-20240711 > BAD: next-20240712 > > Build error: > ------ > arm-linux-gnueabihf-ld: kernel/task_work.o: in function `task_work_add': > task_work.c:(.text+0xc2): undefined reference to `irq_work_queue' > > Reported-by: Linux Kernel Functional Testing The call to this function was added in 466e4d801cd4 ("task_work: Add TWA_NMI_CURRENT as an additional notify mode."). It's possible that we may have to always enable IRQ_WORK even on non-SMP kernels now. In practice it is already enabled in most configurations for one reason or another, the the cost is likely very small. Otherwise checking for CONFIG_HAVE_NMI in the new code might work. Arnd