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gcc correctly warns about an incorrect use of the 'pa' variable in case we pass an empty scatterlist to __s390_dma_map_sg: arch/s390/pci/pci_dma.c: In function '__s390_dma_map_sg': arch/s390/pci/pci_dma.c:309:13: warning: 'pa' may be used uninitialized in this function [-Wmaybe-uninitialized] This adds a bogus initialization to the function to sanitize the debug output. I would have preferred a solution without the initialization, but I only got the report from the kbuild bot after turning on the warning again, and didn't manage to reproduce it myself. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| Makefile | ||
| pci_clp.c | ||
| pci_debug.c | ||
| pci_dma.c | ||
| pci_event.c | ||
| pci_insn.c | ||
| pci_mmio.c | ||
| pci_sysfs.c | ||
| pci.c | ||