Messages in this thread | | | Date | Wed, 7 Apr 2021 11:49:06 +0200 | From | Greg Kroah-Hartman <> | Subject | Re: [PATCH v1 1/1] driver core: platform: Make platform_get_irq_optional() optional |
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On Tue, Apr 06, 2021 at 12:25:14PM -0700, Guenter Roeck wrote: > On Wed, Mar 31, 2021 at 05:45:26PM +0300, Andy Shevchenko wrote: > > Currently the platform_get_irq_optional() returns an error code even > > if IRQ resource sumply has not been found. It prevents caller to be > > error code agnostic in their error handling. > > > > Now: > > ret = platform_get_irq_optional(...); > > if (ret != -ENXIO) > > return ret; // respect deferred probe > > if (ret > 0) > > ...we get an IRQ... > > > > After proposed change: > > ret = platform_get_irq_optional(...); > > if (ret < 0) > > return ret; > > if (ret > 0) > > ...we get an IRQ... > > > > Reported-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > > This patch causes all my "sh" emulations to stall during boot with the > following repeated error message. > > sh-sci sh-sci.1: Can't allocate rx full IRQ > > Reverting this patch fixes the problem (and the message is gone). > Bisect log is attached. > > Guenter > > --- > # bad: [9c54130cd25528028b2d38f6ada0c79e92210390] Add linux-next specific files for 20210406 > # good: [e49d033bddf5b565044e2abe4241353959bc9120] Linux 5.12-rc6 > git bisect start 'HEAD' 'v5.12-rc6' > # good: [3981dcd7199773fc8cfbbcc6173e3521b8e49035] Merge remote-tracking branch 'crypto/master' > git bisect good 3981dcd7199773fc8cfbbcc6173e3521b8e49035 > # good: [da18b6c82eba21e87d6ee76b7b0382eca123cc79] Merge remote-tracking branch 'ftrace/for-next' > git bisect good da18b6c82eba21e87d6ee76b7b0382eca123cc79 > # bad: [021e2b99a3cb523408609ca1792ab623ff16f334] Merge remote-tracking branch 'staging/staging-next' > git bisect bad 021e2b99a3cb523408609ca1792ab623ff16f334 > # bad: [685f903c62e3929370293bad184afa04b6fddebd] Merge remote-tracking branch 'char-misc/char-misc-next' > git bisect bad 685f903c62e3929370293bad184afa04b6fddebd > # good: [67d49fe7e4d40cfe6919b434d6a4e837230af9d4] Merge remote-tracking branch 'ipmi/for-next' > git bisect good 67d49fe7e4d40cfe6919b434d6a4e837230af9d4 > # bad: [69e2ae87cfa94c77c3503715e9e0a68e6cc69f8d] Merge remote-tracking branch 'usb/usb-next' > git bisect bad 69e2ae87cfa94c77c3503715e9e0a68e6cc69f8d > # good: [2665a13a3e9ef3d08b9ac4b48328ddfba9126987] usb: typec: Fix a typo > git bisect good 2665a13a3e9ef3d08b9ac4b48328ddfba9126987 > # good: [967f6d162d9fa415cf140d3eef5576d566632292] dt-bindings: usb: mtk-xhci: remove redefinitions of usb3-lpm-capable > git bisect good 967f6d162d9fa415cf140d3eef5576d566632292 > # good: [d225ef6fda7ce9ff7d28764bd1cceea2d0215e8b] base: dd: fix error return code of driver_sysfs_add() > git bisect good d225ef6fda7ce9ff7d28764bd1cceea2d0215e8b > # bad: [72a91f192da032b68519fafaecce03fd002d669a] driver core: add helper for deferred probe reason setting > git bisect bad 72a91f192da032b68519fafaecce03fd002d669a > # good: [1768289b44bae847612751d418fc5c5e680b5e5c] driver core: platform: Declare early_platform_cleanup() prototype > git bisect good 1768289b44bae847612751d418fc5c5e680b5e5c > # bad: [ed7027fdf4ec41ed6df6814956dc11860232a9d5] driver core: platform: Make platform_get_irq_optional() optional > git bisect bad ed7027fdf4ec41ed6df6814956dc11860232a9d5 > # good: [318c3e00f13c2f6e11202a22cc302ea8c70552ea] driver core: Replace printf() specifier and drop unneeded casting > git bisect good 318c3e00f13c2f6e11202a22cc302ea8c70552ea > # first bad commit: [ed7027fdf4ec41ed6df6814956dc11860232a9d5] driver core: platform: Make platform_get_irq_optional() optional
Thanks for the report, I'll go revert this from my tree now.
greg k-h
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