Re: [PATCH v4 2/2] mailbox: arm_mhuv3: Add driver

From: kernel test robot
Date: Mon Apr 15 2024 - 09:57:17 EST


Hi Cristian,

kernel test robot noticed the following build errors:

[auto build test ERROR on robh/for-next]
[also build test ERROR on soc/for-next linus/master v6.9-rc4 next-20240415]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Cristian-Marussi/dt-bindings-mailbox-arm-mhuv3-Add-bindings/20240415-094106
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link: https://lore.kernel.org/r/20240412192801.554464-3-cristian.marussi%40arm.com
patch subject: [PATCH v4 2/2] mailbox: arm_mhuv3: Add driver
config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20240415/202404152144.RtJxmEsQ-lkp@xxxxxxxxx/config)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240415/202404152144.RtJxmEsQ-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202404152144.RtJxmEsQ-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

drivers/mailbox/arm_mhuv3.c: In function 'mhuv3_mbx_comb_interrupt':
>> drivers/mailbox/arm_mhuv3.c:922:17: error: cleanup argument not a function
922 | void *data __free(kfree) = NULL;
| ^~~~


vim +922 drivers/mailbox/arm_mhuv3.c

910
911 static irqreturn_t mhuv3_mbx_comb_interrupt(int irq, void *arg)
912 {
913 unsigned int i, found = 0;
914 struct mhuv3 *mhu = arg;
915 struct mbox_chan *chan;
916 struct device *dev;
917 int ret = IRQ_NONE;
918
919 dev = mhu->mbox.dev;
920 for (i = 0; i < NUM_EXT; i++) {
921 struct mhuv3_mbox_chan_priv *priv;
> 922 void *data __free(kfree) = NULL;
923
924 if (!mhu->ext[i])
925 continue;
926
927 /* Process any extension which could be source of the IRQ */
928 chan = mhu->ext[i]->chan_from_comb_irq_get(mhu);
929 if (IS_ERR(chan))
930 continue;
931
932 found++;
933 /* From here on we need to call rx_complete even on error */
934 priv = chan->con_priv;
935 if (!chan->cl) {
936 dev_warn(dev, "RX Data on UNBOUND channel (%u)\n",
937 priv->ch_idx);
938 goto rx_ack;
939 }
940
941 /* Read optional in-band LE data first. */
942 if (priv->ops->read_data) {
943 data = priv->ops->read_data(mhu, chan);
944 if (IS_ERR(data)) {
945 dev_err(dev,
946 "Failed to read in-band data. err:%ld\n",
947 PTR_ERR(no_free_ptr(data)));
948 goto rx_ack;
949 }
950 }
951
952 mbox_chan_received_data(chan, data);
953 ret = IRQ_HANDLED;
954
955 /*
956 * Acknowledge transfer after any possible optional
957 * out-of-band data has also been retrieved via
958 * mbox_chan_received_data().
959 */
960 rx_ack:
961 if (priv->ops->rx_complete)
962 priv->ops->rx_complete(mhu, chan);
963 }
964
965 if (found == 0)
966 dev_warn_once(dev, "Failed to find channel for the RX interrupt\n");
967
968 return ret;
969 }
970

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0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki