Messages in this thread | | | Date | Fri, 19 Oct 2018 19:27:35 +0200 (CEST) | From | Julia Lawall <> | Subject | Re: [PATCH 2/2] tty: serial: add driver for the SiFive UART (fwd) |
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Hello,
It looks like an unlock is needed before the return on line 562.
julia
---------- Forwarded message ---------- Date: Fri, 19 Oct 2018 18:12:04 +0800 From: kbuild test robot <lkp@intel.com> To: kbuild@01.org Cc: Julia Lawall <julia.lawall@lip6.fr> Subject: Re: [PATCH 2/2] tty: serial: add driver for the SiFive UART
CC: kbuild-all@01.org In-Reply-To: <20181018234352.26788-3-paul.walmsley@sifive.com> References: <20181018234352.26788-3-paul.walmsley@sifive.com> TO: Paul Walmsley <paul.walmsley@sifive.com> CC: linux-serial@vger.kernel.org CC: Paul Walmsley <paul.walmsley@sifive.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Jiri Slaby <jslaby@suse.com>, Palmer Dabbelt <palmer@sifive.com>, Wesley Terpstra <wesley@sifive.com>, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Paul Walmsley <paul@pwsan.com>
Hi Paul,
I love your patch! Perhaps something to improve:
[auto build test WARNING on tty/tty-testing] [also build test WARNING on v4.19-rc8 next-20181019] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Paul-Walmsley/dt-bindings-serial-add-documentation-for-the-SiFive-UART-driver/20181019-165529 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing :::::: branch date: 77 minutes ago :::::: commit date: 77 minutes ago
>> drivers/tty/serial/sifive.c:562:2-8: preceding lock on line 558
# https://github.com/0day-ci/linux/commit/15d0af7ab79ba53f984613f23e668cade495babb git remote add linux-review https://github.com/0day-ci/linux git remote update linux-review git checkout 15d0af7ab79ba53f984613f23e668cade495babb vim +562 drivers/tty/serial/sifive.c
15d0af7a Paul Walmsley 2018-10-18 552 15d0af7a Paul Walmsley 2018-10-18 553 static irqreturn_t sifive_serial_irq(int irq, void *dev_id) 15d0af7a Paul Walmsley 2018-10-18 554 { 15d0af7a Paul Walmsley 2018-10-18 555 struct sifive_serial_port *ssp = dev_id; 15d0af7a Paul Walmsley 2018-10-18 556 u32 ip; 15d0af7a Paul Walmsley 2018-10-18 557 15d0af7a Paul Walmsley 2018-10-18 @558 spin_lock(&ssp->port.lock); 15d0af7a Paul Walmsley 2018-10-18 559 15d0af7a Paul Walmsley 2018-10-18 560 ip = __ssp_readl(ssp, SIFIVE_SERIAL_IP_OFFS); 15d0af7a Paul Walmsley 2018-10-18 561 if (!ip) 15d0af7a Paul Walmsley 2018-10-18 @562 return IRQ_NONE; 15d0af7a Paul Walmsley 2018-10-18 563 15d0af7a Paul Walmsley 2018-10-18 564 if (ip & SIFIVE_SERIAL_IP_RXWM_MASK) 15d0af7a Paul Walmsley 2018-10-18 565 __ssp_receive_chars(ssp); 15d0af7a Paul Walmsley 2018-10-18 566 if (ip & SIFIVE_SERIAL_IP_TXWM_MASK) 15d0af7a Paul Walmsley 2018-10-18 567 __ssp_transmit_chars(ssp); 15d0af7a Paul Walmsley 2018-10-18 568 15d0af7a Paul Walmsley 2018-10-18 569 spin_unlock(&ssp->port.lock); 15d0af7a Paul Walmsley 2018-10-18 570 15d0af7a Paul Walmsley 2018-10-18 571 return IRQ_HANDLED; 15d0af7a Paul Walmsley 2018-10-18 572 } 15d0af7a Paul Walmsley 2018-10-18 573
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