diff options
| author | Colin Ian King <colin.king@canonical.com> | 2017-09-12 18:34:22 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2017-11-10 12:45:35 +0100 |
| commit | 4013e44ffaf7eaed60fa39750a2944b774b9ea3f (patch) | |
| tree | 2390a7a5a1d868d65d2c322a8200dbadfd705df9 /drivers/gpu/drm/qxl | |
| parent | adbf6eb3cd703398934a274ccb689344cfceb0cb (diff) | |
drm: qxl: remove pr_info message, stops log spamming
Simply mmap'ing /dev/dri/card0 repeatedly will spam the kernel
log with qxl_mmap information messages. The following example code
illustrates this:
int main(void)
{
int fd = open("/dev/dri/card0", O_RDONLY);
if (fd == -1)
err(1, "open failed");
for (;;) {
void *m = mmap(NULL, 4096, PROT_READ,
MAP_SHARED, fd, 0);
if (m != MAP_FAILED)
munmap(m, 4096);
}
}
Stop the spamming by removing the pr_info message. Since the mmap'ing
returns -EINVAL there is no need for the pr_info message.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170912173422.14062-1-colin.king@canonical.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/qxl')
| -rw-r--r-- | drivers/gpu/drm/qxl/qxl_ttm.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c index 7ecf8a4b9fe6..0f50c0b25a58 100644 --- a/drivers/gpu/drm/qxl/qxl_ttm.c +++ b/drivers/gpu/drm/qxl/qxl_ttm.c @@ -123,11 +123,8 @@ int qxl_mmap(struct file *filp, struct vm_area_struct *vma) struct qxl_device *qdev; int r; - if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) { - pr_info("%s: vma->vm_pgoff (%ld) < DRM_FILE_PAGE_OFFSET\n", - __func__, vma->vm_pgoff); + if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) return -EINVAL; - } file_priv = filp->private_data; qdev = file_priv->minor->dev->dev_private; |