nvmet-fc: slight cleanup for kbuild test warnings
The kbuild tst robot flagged the following 3 issues: Case 1) >> drivers/nvme/target/fc.c:1201:37: warning: Either the condition >> '!assoc' is redundant or there is possible null pointer dereference: >> assoc. [nullPointerRedundantCheck] >> struct nvmet_fc_tgtport *tgtport = assoc->tgtport; ^ >> drivers/nvme/target/fc.c:1853:7: note: Assuming that condition '!assoc' >> is not redundant >> if (!assoc) ^ >> drivers/nvme/target/fc.c:1850:37: note: Assignment >> 'assoc=nvmet_fc_find_target_assoc(tgtport,be64_to_cpu( >> rqst->associd.association_id))', assigned value is 0 >> assoc = nvmet_fc_find_target_assoc(tgtport, ^ >> drivers/nvme/target/fc.c:1896:31: note: Calling function >> 'nvmet_fc_delete_target_assoc', 1st argument 'assoc' value is 0 >> nvmet_fc_delete_target_assoc(assoc); ^ The tool isn't smart enough to see that line 1854 sets a ret value which thereafter causes the routine to exit. This occurs before any of the assoc references, so it is not an issue. There are 2 more reportings of this same failure. To quiet the tool - rework the if test that does the exit to also reference assoc. No change in logic otherwise. Case 2) drivers/nvme/target/fc.c:1202:29: warning: The scope of the variable 'queue' can be reduced. [variableScope] struct nvmet_fc_tgt_queue *queue; ^ The tool is requesting the variable be declared within the code block that utilizes it. Ignoring this report as existing code style is fine. Case 3) drivers/nvme/target/fc.c:1137:16: warning: Variable 'needrandom' is assigned a value that is never used. [unreadVariable] needrandom = true; ^ Another parsing issue with the tool. Given that parens were not used with the list_for_each_entry() check, it inadvertantly thinks the break exited the outer while loop not the inner for loop. This is not an error. But, added parens to the inner list_for_each_entry() to quiet the tool and as it is better coding style. -- james Signed-off-by:James Smart <jsmart2021@gmail.com> Reported-by:
kbuild test robot <lkp@intel.com> CC: kbuild test robot <lkp@intel.com> CC: Christoph Hellwig <hch@lst.de> Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
Jens Axboe <axboe@kernel.dk>
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