From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-170.mta1.migadu.com (out-170.mta1.migadu.com [95.215.58.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 59BED32B985 for ; Wed, 12 Nov 2025 13:29:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.170 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762954181; cv=none; b=iDBaRAvcxmNuSdEctnRXMLnUY7IiQp8PaHuC3JDQLXxPe3paUgQ1N8O9L+0N721hv+MGm3wJBMh+CGcAA3GPEnr8IYEXOQFf+Z5xrpCV3YgP/sF5od0Cy11Fx3edvHzudCZVQTzFs/6fCBHxxi9/I9Psq7LBeOsBGj/c0IuECaE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762954181; c=relaxed/simple; bh=cFDLz+H6jgprUwiaJKuznGYcbz9JNDbR/NwTpcCUNwY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=jtB20bYeT/yHo5V4KrVrzp9R5iT5aR9IG/5Cbt+m8arGMZfQKIccVzgV0LDqYJZeyEcRQbK0QuthloaodbZGTGDHdug6/CuhdyDSL5r0JkAX3io0Pw1AMkUnn/KJfBJn6zU9Gja4QR1Z6yzr9y8rLSld94kp+TipQhuS3Ncx0GA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=lyFdnc8L; arc=none smtp.client-ip=95.215.58.170 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="lyFdnc8L" Message-ID: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1762954177; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9RSSglgRhT7StgwYdiewsW78Pog2Jcy1C6j1GJAvawQ=; b=lyFdnc8LHt4mbN1nEKkHnZ/O/bYB+Hf4Jq5zJjU2AliAqGvXrgl1cgLjj+RjkCMraBAvTE RwpuBENkEaDqQKZCOTCTWL3jYpUNWS7GIZ7nTk9sLXnR8H2a+NWfzAG0CQnJnnnKfhLaHN 8009muDUAshVY+NujOgIIbciFZF/J9s= Date: Wed, 12 Nov 2025 13:29:28 +0000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH net-next v1 1/7] ptp: ocp: Refactor signal_show() and fix %ptT misuse To: Andy Shevchenko , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Richard Cochran , Jonathan Lemon , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni References: <20251111165232.1198222-1-andriy.shevchenko@linux.intel.com> <20251111165232.1198222-2-andriy.shevchenko@linux.intel.com> Content-Language: en-US X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Vadim Fedorenko In-Reply-To: <20251111165232.1198222-2-andriy.shevchenko@linux.intel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT On 11/11/2025 16:52, Andy Shevchenko wrote: > Refactor signal_show() to avoid sequential calls to sysfs_emit*() > and use the same pattern to get the index of a signal as it's done > in signal_store(). > > While at it, fix wrong use of %ptT against struct timespec64. > It's kinda lucky that it worked just because the first member > there 64-bit and it's of time64_t type. Now with %ptS it may > be used correctly. > > Signed-off-by: Andy Shevchenko > --- > drivers/ptp/ptp_ocp.c | 14 +++++--------- > 1 file changed, 5 insertions(+), 9 deletions(-) > > diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c > index eeebe4d149f7..95889f85ffb2 100644 > --- a/drivers/ptp/ptp_ocp.c > +++ b/drivers/ptp/ptp_ocp.c > @@ -3250,20 +3250,16 @@ signal_show(struct device *dev, struct device_attribute *attr, char *buf) > struct dev_ext_attribute *ea = to_ext_attr(attr); > struct ptp_ocp *bp = dev_get_drvdata(dev); > struct ptp_ocp_signal *signal; > + int gen = (uintptr_t)ea->var; > struct timespec64 ts; > - ssize_t count; > - int i; > > - i = (uintptr_t)ea->var; > - signal = &bp->signal[i]; > - > - count = sysfs_emit(buf, "%llu %d %llu %d", signal->period, > - signal->duty, signal->phase, signal->polarity); > + signal = &bp->signal[gen]; > > ts = ktime_to_timespec64(signal->start); > - count += sysfs_emit_at(buf, count, " %ptT TAI\n", &ts); > > - return count; > + return sysfs_emit(buf, "%llu %d %llu %d %ptT TAI\n", > + signal->period, signal->duty, signal->phase, signal->polarity, > + &ts.tv_sec); > } > static EXT_ATTR_RW(signal, signal, 0); > static EXT_ATTR_RW(signal, signal, 1); Reviewed-by: Vadim Fedorenko