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Wed, 28 Feb 2024 09:54:41 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.11.0-alpha0-182-gaab6630818-fm-20240222.002-gaab66308 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: <20240228140413.1862310-1-arnd@kernel.org> Date: Wed, 28 Feb 2024 15:54:19 +0100 From: "Arnd Bergmann" To: "Dave Taht" , "Arnd Bergmann" Cc: "David S . Miller" , "Eric Dumazet" , "Jakub Kicinski" , "Paolo Abeni" , "Breno Leitao" , "Roger Quadros" , "Siddharth Vadapalli" , "Grygorii Strashko" , "Dan Carpenter" , Netdev , linux-kernel@vger.kernel.org Subject: Re: [PATCH] net: ethernet: ti: am65-cpsw-qos: fix non-bql configs Content-Type: text/plain On Wed, Feb 28, 2024, at 15:44, Dave Taht wrote: > but why do you want to disable BQL? I have no idea, I'm just doing randconfig build tests. I assume Breno has an answer for that, at least he sent the patch that triggered the regression, see below. Arnd commit ea7f3cfaa58873bbe271577efa800647e30f18bd Author: Breno Leitao Date: Thu Feb 15 09:05:07 2024 -0800 net: bql: allow the config to be disabled It is impossible to disable BQL individually today, since there is no prompt for the Kconfig entry, so, the BQL is always enabled if SYSFS is enabled. Create a prompt entry for BQL, so, it could be enabled or disabled at build time independently of SYSFS. Signed-off-by: Breno Leitao Signed-off-by: David S. Miller diff --git a/net/Kconfig b/net/Kconfig index 4adc47d0c9c2..3e57ccf0da27 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -331,6 +331,7 @@ config NET_RX_BUSY_POLL config BQL bool + prompt "Enable Byte Queue Limits" depends on SYSFS select DQL default y