dri-devel Archive mirror
 help / color / mirror / Atom feed
From: Jani Nikula <jani.nikula@intel.com>
To: dri-devel@lists.freedesktop.org
Cc: jani.nikula@intel.com, Steven Price <steven.price@arm.com>
Subject: [PATCH] drm: use "0" instead of "" for deprecated driver date
Date: Fri, 10 May 2024 12:09:51 +0300	[thread overview]
Message-ID: <20240510090951.3398882-1-jani.nikula@intel.com> (raw)

libdrm does not like the empty string for driver date. Use "0" instead,
which has been used by virtio previously.

Reported-by: Steven Price <steven.price@arm.com>
Closes: https://lore.kernel.org/r/9d0cff47-308e-4b11-a9f3-4157dc26b6fa@arm.com
Fixes: 7fb8af6798e8 ("drm: deprecate driver date")
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/drm_ioctl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 89feb7306e47..51f39912866f 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -530,9 +530,9 @@ int drm_version(struct drm_device *dev, void *data,
 	err = drm_copy_field(version->name, &version->name_len,
 			dev->driver->name);
 
-	/* Driver date is deprecated. Return the empty string. */
+	/* Driver date is deprecated. Userspace expects a non-empty string. */
 	if (!err)
-		err = drm_copy_field(version->date, &version->date_len, "");
+		err = drm_copy_field(version->date, &version->date_len, "0");
 	if (!err)
 		err = drm_copy_field(version->desc, &version->desc_len,
 				dev->driver->desc);
-- 
2.39.2


             reply	other threads:[~2024-05-10  9:10 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-10  9:09 Jani Nikula [this message]
2024-05-10  9:30 ` [PATCH] drm: use "0" instead of "" for deprecated driver date Javier Martinez Canillas
2024-05-10  9:36 ` Steven Price
2024-05-10 10:36 ` Simon Ser
2024-05-10 17:33 ` Ville Syrjälä
2024-05-10 17:59   ` Ville Syrjälä
2024-05-13  7:46     ` Jani Nikula

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20240510090951.3398882-1-jani.nikula@intel.com \
    --to=jani.nikula@intel.com \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=steven.price@arm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).