Re: [PATCH net-next] drivers/scsi: Remove warnings after vsprintf %pV introduction

James Bottomley
2010-07-27T13:12:33Z

On Sat, 2010-07-10 at 22:08 -0700, Joe Perches wrote:
> On Sat, 2010-07-10 at 19:52 -0700, David Miller wrote:
> > Could you take a stab at this and the other scsi bits that
> > trigger this warning?
>
> Remove warnings introduced by conversions of dev_<level>
> macros to functions.
>
> Compile tested only.
>
> Signed-off-by: Joe Perches <joe@perches.com>
> ---
> drivers/scsi/constants.c | 63 ++++++++++++++++++++---------------
> drivers/scsi/sd.c | 6 ++--
> drivers/scsi/sym53c8xx_2/sym_hipd.c | 10 ++---
> 3 files changed, 43 insertions(+), 36 deletions(-)
>
> diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
> index cd05e04..f95de51 100644
> --- a/drivers/scsi/constants.c
> +++ b/drivers/scsi/constants.c
> @@ -1226,29 +1226,38 @@ scsi_extd_sense_format(unsigned char asc, unsigned char ascq) {
> }
> EXPORT_SYMBOL(scsi_extd_sense_format);
>
> +static void scsi_show_extd_sense_args(const char *fmt, ...)
> +{
> + va_list args;
> + struct va_format vaf;
> +
> + va_start(args, fmt);
> +
> + vaf.fmt = fmt;
> + vaf.va = &args;
> +
> + printk(KERN_CONT "Add. Sense: %pV\n", &vaf);
> +
> + va_end(args);
> +}
> +

This doesn't have a place in the patch, it's an unnecessary conversion

> void
> scsi_show_extd_sense(unsigned char asc, unsigned char ascq)
> {
> const char *extd_sense_fmt = scsi_extd_sense_format(asc, ascq);
>
> if (extd_sense_fmt) {
> - if (strstr(extd_sense_fmt, "%x")) {
> - printk("Add. Sense: ");
> - printk(extd_sense_fmt, ascq);
> - } else
> - printk("Add. Sense: %s", extd_sense_fmt);
> + scsi_show_extd_sense_args(extd_sense_fmt, ascq);
> } else {
> if (asc >= 0x80)
> - printk("<<vendor>> ASC=0x%x ASCQ=0x%x", asc,
> - ascq);
> + printk(KERN_CONT "<<vendor>> ASC=0x%x ASCQ=0x%x",
> + asc, ascq);
> if (ascq >= 0x80)
> - printk("ASC=0x%x <<vendor>> ASCQ=0x%x", asc,
> - ascq);
> + printk(KERN_CONT "ASC=0x%x <<vendor>> ASCQ=0x%x\n",
> + asc, ascq);
> else
> - printk("ASC=0x%x ASCQ=0x%x", asc, ascq);
> + printk(KERN_CONT "ASC=0x%x ASCQ=0x%x\n", asc, ascq);

And half these KERN_CONT additions are spurious since you'd not
otherwise touch the line

> }
> -
> - printk("\n");
> }
> EXPORT_SYMBOL(scsi_show_extd_sense);
>
> @@ -1310,15 +1319,15 @@ scsi_decode_sense_buffer(const unsigned char *sense_buffer, int sense_len,
> if (0 == res) {
> /* this may be SCSI-1 sense data */
> num = (sense_len < 32) ? sense_len : 32;
> - printk("Unrecognized sense data (in hex):");
> + printk(KERN_CONT "Unrecognized sense data (in hex):");
> for (k = 0; k < num; ++k) {
> if (0 == (k % 16)) {
> - printk("\n");
> - printk(KERN_INFO " ");
> + printk(KERN_CONT "\n");
> + printk(KERN_INFO " ");
> }
> - printk("%02x ", sense_buffer[k]);
> + printk(KERN_CONT " %02x", sense_buffer[k]);
> }
> - printk("\n");
> + printk(KERN_CONT "\n");
> return;
> }
> }
> @@ -1364,22 +1373,22 @@ scsi_decode_sense_extras(const unsigned char *sense_buffer, int sense_len,
> res += snprintf(buff + res, blen - res, "ILI");
> }
> if (res > 0)
> - printk("%s\n", buff);
> + printk(KERN_CONT "%s\n", buff);
> } else if (sshdr->additional_length > 0) {
> /* descriptor format with sense descriptors */
> num = 8 + sshdr->additional_length;
> num = (sense_len < num) ? sense_len : num;
> - printk("Descriptor sense data with sense descriptors "
> + printk(KERN_CONT "Descriptor sense data with sense descriptors "
> "(in hex):");
> for (k = 0; k < num; ++k) {
> if (0 == (k % 16)) {
> - printk("\n");
> - printk(KERN_INFO " ");
> + printk(KERN_CONT "\n");
> + printk(KERN_INFO " ");
> }
> - printk("%02x ", sense_buffer[k]);
> + printk(KERN_CONT " %02x", sense_buffer[k]);
> }
>
> - printk("\n");
> + printk(KERN_CONT "\n");
> }
>
> }
> @@ -1404,13 +1413,13 @@ void scsi_print_sense(char *name, struct scsi_cmnd *cmd)
> {
> struct scsi_sense_hdr sshdr;
>
> - scmd_printk(KERN_INFO, cmd, "");
> + scmd_printk(KERN_INFO, cmd, " ");
> scsi_decode_sense_buffer(cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE,
> &sshdr);
> scsi_show_sense_hdr(&sshdr);
> scsi_decode_sense_extras(cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE,
> &sshdr);
> - scmd_printk(KERN_INFO, cmd, "");
> + scmd_printk(KERN_INFO, cmd, " ");
> scsi_show_extd_sense(sshdr.asc, sshdr.ascq);
> }
> EXPORT_SYMBOL(scsi_print_sense);
> @@ -1443,7 +1452,7 @@ void scsi_show_result(int result)
>
> void scsi_show_result(int result)
> {
> - printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n",
> + printk(KERN_CONT "Result: hostbyte=0x%02x driverbyte=0x%02x\n",
> host_byte(result), driver_byte(result));
> }
>
> @@ -1453,7 +1462,7 @@ EXPORT_SYMBOL(scsi_show_result);
>
> void scsi_print_result(struct scsi_cmnd *cmd)
> {
> - scmd_printk(KERN_INFO, cmd, "");
> + scmd_printk(KERN_INFO, cmd, " ");
> scsi_show_result(cmd->result);
> }
> EXPORT_SYMBOL(scsi_print_result);
> diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
> index 829cc37..2fddadd 100644
> --- a/drivers/scsi/sd.c
> +++ b/drivers/scsi/sd.c
> @@ -2550,15 +2550,15 @@ module_exit(exit_sd);
> static void sd_print_sense_hdr(struct scsi_disk *sdkp,
> struct scsi_sense_hdr *sshdr)
> {
> - sd_printk(KERN_INFO, sdkp, "");
> + sd_printk(KERN_INFO, sdkp, " ");
> scsi_show_sense_hdr(sshdr);
> - sd_printk(KERN_INFO, sdkp, "");
> + sd_printk(KERN_INFO, sdkp, " ");
> scsi_show_extd_sense(sshdr->asc, sshdr->ascq);
> }
>
> static void sd_print_result(struct scsi_disk *sdkp, int result)
> {
> - sd_printk(KERN_INFO, sdkp, "");
> + sd_printk(KERN_INFO, sdkp, " ");
> scsi_show_result(result);
> }
>
> diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
> index a7bc8b7..d740a5b 100644
> --- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
> +++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
> @@ -72,10 +72,7 @@ static void sym_printl_hex(u_char *p, int n)
>
> static void sym_print_msg(struct sym_ccb *cp, char *label, u_char *msg)
> {
> - if (label)
> - sym_print_addr(cp->cmd, "%s: ", label);
> - else
> - sym_print_addr(cp->cmd, "");
> + sym_print_addr(cp->cmd, "%s: ", label);
>
> spi_print_msg(msg);
> printf("\n");
> @@ -4558,7 +4555,8 @@ static void sym_int_sir(struct sym_hcb *np)
> switch (np->msgin [2]) {
> case M_X_MODIFY_DP:
> if (DEBUG_FLAGS & DEBUG_POINTER)
> - sym_print_msg(cp, NULL, np->msgin);
> + sym_print_msg(cp, "extended msg ",
> + np->msgin);
> tmp = (np->msgin[3]<<24) + (np->msgin[4]<<16) +
> (np->msgin[5]<<8) + (np->msgin[6]);
> sym_modify_dp(np, tp, cp, tmp);
> @@ -4585,7 +4583,7 @@ static void sym_int_sir(struct sym_hcb *np)
> */
> case M_IGN_RESIDUE:
> if (DEBUG_FLAGS & DEBUG_POINTER)
> - sym_print_msg(cp, NULL, np->msgin);
> + sym_print_msg(cp, "half byte ", np->msgin);
> if (cp->host_flags & HF_SENSE)
> OUTL_DSP(np, SCRIPTA_BA(np, clrack));
> else

OK, so please resend on the necessary bits. That's "" -> " " in the
X_printk() statements. If you remove the space from a continuation
line, then KERN_CONT is appropriate to keep checkpatch quiet.

James