Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.10 7/8] ata: libata-eh: Fix compilation warning in ata_eh_link_report() | Date | Sat, 7 Oct 2023 20:50:08 -0400 |
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From: Damien Le Moal <dlemoal@kernel.org>
[ Upstream commit 49728bdc702391902a473b9393f1620eea32acb0 ]
The 6 bytes length of the tries_buf string in ata_eh_link_report() is too short and results in a gcc compilation warning with W-!:
drivers/ata/libata-eh.c: In function ‘ata_eh_link_report’: drivers/ata/libata-eh.c:2371:59: warning: ‘%d’ directive output may be truncated writing between 1 and 11 bytes into a region of size 4 [-Wformat-truncation=] 2371 | snprintf(tries_buf, sizeof(tries_buf), " t%d", | ^~ drivers/ata/libata-eh.c:2371:56: note: directive argument in the range [-2147483648, 4] 2371 | snprintf(tries_buf, sizeof(tries_buf), " t%d", | ^~~~~~ drivers/ata/libata-eh.c:2371:17: note: ‘snprintf’ output between 4 and 14 bytes into a destination of size 6 2371 | snprintf(tries_buf, sizeof(tries_buf), " t%d", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2372 | ap->eh_tries); | ~~~~~~~~~~~~~
Avoid this warning by increasing the string size to 16B.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/ata/libata-eh.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 973f4d34d7cda..5c9792dd3ab61 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2224,7 +2224,7 @@ static void ata_eh_link_report(struct ata_link *link) struct ata_eh_context *ehc = &link->eh_context; struct ata_queued_cmd *qc; const char *frozen, *desc; - char tries_buf[6] = ""; + char tries_buf[16] = ""; int tag, nr_failed = 0; if (ehc->i.flags & ATA_EHI_QUIET) -- 2.40.1
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