Hi Qiang,
Am Montag, 9. September 2019, 04:30:43 CEST schrieb Qiang Yu:
Oh, I was miss leading by the drm_gem_reservation_object_wait comments. Patch is: Reviewed-by: Qiang Yu yuq825@gmail.com
I'll apply this patch to drm-misc-next.
Current kernel release is 5.3-rc8, is it too late for this fix to go into the mainline 5.3 release? I'd like to know how to apply this fix for current rc kernels, by drm-misc-fixes? Can I push to drm-misc-fixes by dim or I can only push to drm-misc-next and drm-misc maintainer will pick fixes from it to drm-misc-fixes?
drm-misc-fixes gets merged into drm-misc-next by maintainers regularly, so I _think_ you should apply the fix-patch to drm-misc-fixes first. [I also always have to read the documentation ;-) ]
In any case you might want to add a "Fixes: ....." tag as well as a "Cc: stable@vger.kernel.org" tag, so it can be backported to stable kernels if applicable.
Heiko
On Sun, Sep 8, 2019 at 10:48 AM Vasily Khoruzhick anarsoul@gmail.com wrote:
drm_gem_reservation_object_wait() returns 0 if it succeeds and -ETIME if it timeouts, but lima driver assumed that 0 is error.
Cc: stable@vger.kernel.org Signed-off-by: Vasily Khoruzhick anarsoul@gmail.com
drivers/gpu/drm/lima/lima_gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c index 477c0f766663..b609dc030d6c 100644 --- a/drivers/gpu/drm/lima/lima_gem.c +++ b/drivers/gpu/drm/lima/lima_gem.c @@ -342,7 +342,7 @@ int lima_gem_wait(struct drm_file *file, u32 handle, u32 op, s64 timeout_ns) timeout = drm_timeout_abs_to_jiffies(timeout_ns);
ret = drm_gem_reservation_object_wait(file, handle, write, timeout);
if (ret == 0)
if (ret == -ETIME) ret = timeout ? -ETIMEDOUT : -EBUSY; return ret;-- 2.23.0
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