Hi Greg, On Mon, Dec 28, 2020 at 12:10:31PM +0100, gregkh@xxxxxxxxxxxxxxxxxxx wrote: > > The patch below does not apply to the 4.19-stable tree. > If someone wants it applied there, or to any other stable or longterm > tree, then please email the backport, including the original git commit > id to <stable@xxxxxxxxxxxxxxx>. Here is the backport, will apply to all branches till 4.4-stable. -- Regards Sudip
>From 3037a413f74ec78abdbd68ffb5576d9289b5ad41 Mon Sep 17 00:00:00 2001 From: Arun Easi <aeasi@xxxxxxxxxxx> Date: Wed, 2 Dec 2020 05:23:04 -0800 Subject: [PATCH] scsi: qla2xxx: Fix crash during driver load on big endian machines commit 8de309e7299a00b3045fb274f82b326f356404f0 upstream Crash stack: [576544.715489] Unable to handle kernel paging request for data at address 0xd00000000f970000 [576544.715497] Faulting instruction address: 0xd00000000f880f64 [576544.715503] Oops: Kernel access of bad area, sig: 11 [#1] [576544.715506] SMP NR_CPUS=2048 NUMA pSeries : [576544.715703] NIP [d00000000f880f64] .qla27xx_fwdt_template_valid+0x94/0x100 [qla2xxx] [576544.715722] LR [d00000000f7952dc] .qla24xx_load_risc_flash+0x2fc/0x590 [qla2xxx] [576544.715726] Call Trace: [576544.715731] [c0000004d0ffb000] [c0000006fe02c350] 0xc0000006fe02c350 (unreliable) [576544.715750] [c0000004d0ffb080] [d00000000f7952dc] .qla24xx_load_risc_flash+0x2fc/0x590 [qla2xxx] [576544.715770] [c0000004d0ffb170] [d00000000f7aa034] .qla81xx_load_risc+0x84/0x1a0 [qla2xxx] [576544.715789] [c0000004d0ffb210] [d00000000f79f7c8] .qla2x00_setup_chip+0xc8/0x910 [qla2xxx] [576544.715808] [c0000004d0ffb300] [d00000000f7a631c] .qla2x00_initialize_adapter+0x4dc/0xb00 [qla2xxx] [576544.715826] [c0000004d0ffb3e0] [d00000000f78ce28] .qla2x00_probe_one+0xf08/0x2200 [qla2xxx] Link: https://lore.kernel.org/r/20201202132312.19966-8-njavali@xxxxxxxxxxx Fixes: f73cb695d3ec ("[SCSI] qla2xxx: Add support for ISP2071.") Cc: stable@xxxxxxxxxxxxxxx Reviewed-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx> Signed-off-by: Arun Easi <aeasi@xxxxxxxxxxx> Signed-off-by: Nilesh Javali <njavali@xxxxxxxxxxx> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> [sudip: adjust context] Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx> --- drivers/scsi/qla2xxx/qla_tmpl.c | 9 +++++---- drivers/scsi/qla2xxx/qla_tmpl.h | 2 +- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_tmpl.c b/drivers/scsi/qla2xxx/qla_tmpl.c index 0ccd06f11f12..de3136294097 100644 --- a/drivers/scsi/qla2xxx/qla_tmpl.c +++ b/drivers/scsi/qla2xxx/qla_tmpl.c @@ -940,7 +940,8 @@ qla27xx_template_checksum(void *p, ulong size) static inline int qla27xx_verify_template_checksum(struct qla27xx_fwdt_template *tmp) { - return qla27xx_template_checksum(tmp, tmp->template_size) == 0; + return qla27xx_template_checksum(tmp, + le32_to_cpu(tmp->template_size)) == 0; } static inline int @@ -956,7 +957,7 @@ qla27xx_execute_fwdt_template(struct scsi_qla_host *vha) ulong len; if (qla27xx_fwdt_template_valid(tmp)) { - len = tmp->template_size; + len = le32_to_cpu(tmp->template_size); tmp = memcpy(vha->hw->fw_dump, tmp, len); ql27xx_edit_template(vha, tmp); qla27xx_walk_template(vha, tmp, tmp, &len); @@ -972,7 +973,7 @@ qla27xx_fwdt_calculate_dump_size(struct scsi_qla_host *vha) ulong len = 0; if (qla27xx_fwdt_template_valid(tmp)) { - len = tmp->template_size; + len = le32_to_cpu(tmp->template_size); qla27xx_walk_template(vha, tmp, NULL, &len); } @@ -984,7 +985,7 @@ qla27xx_fwdt_template_size(void *p) { struct qla27xx_fwdt_template *tmp = p; - return tmp->template_size; + return le32_to_cpu(tmp->template_size); } ulong diff --git a/drivers/scsi/qla2xxx/qla_tmpl.h b/drivers/scsi/qla2xxx/qla_tmpl.h index 141c1c5e73f4..2d3e1a8349b3 100644 --- a/drivers/scsi/qla2xxx/qla_tmpl.h +++ b/drivers/scsi/qla2xxx/qla_tmpl.h @@ -13,7 +13,7 @@ struct __packed qla27xx_fwdt_template { uint32_t template_type; uint32_t entry_offset; - uint32_t template_size; + __le32 template_size; uint32_t reserved_1; uint32_t entry_count; -- 2.30.0
